Latest Quantum Computing Articles (119 articles — Updated Apr 03, 2026 23:08 UTC)
The Decryption Threshold — Re-estimating the Quantum Threat to Blockchain Infrastructure
Comparison of logical quantum resources (number of logical qubits and Toffoli gates) required to break 256-bit ECDLP for the secp256k1 curve, as reported by various prior works. Credit: Google Quantum AI whitepaper.…
A tiny detector for microwave photons could advance quantum tech
Detecting a single particle of light is hard; detecting a single microwave photon is even harder. Microwave photons, the tiny packets of electromagnetic radiation used in current technologies like Wi-Fi and radar,…
Palm Beach State College Takes Aim at Quantum Workforce Demand
Insider Brief Quantum technology is often portrayed as a field staffed by people with doctoral degrees and years of academic experience. That may be how it is now, but experts are increasingly concerned that as…
Small quantum system outperforms large classical networks in real-world forecasting
Can a handful of atoms outperform a much larger digital neural network on a real-world task? The answer may be yes. In a study published in Physical Review Letters, a team led by Prof. Peng Xinhua and Assoc. Prof. Li…
Quantum coherence could be preserved at large scales in realistic environments
Quantum states are notoriously fragile, and can be destroyed simply through interactions, measurements, and exposure to their surrounding environments. In a new theoretical study published in Physical Review X, Rohan…
SpinQ Technology Secures Nearly 1 Billion Chinese Yuan in Series C Funding to Scale Industrial Superconducting Quantum Computing
Insider Brief PRESS RELEASE — SpinQ Technology, a leading global provider of full-stack quantum computing solutions, today announced the successful completion of its 600 million Chinese Yuan (about $83 million U.S.)…
Coinbase CEO Addresses ‘Quantum Threat’ to Cryptocurrencies
Insider Brief A steady stream of announcements that quantum teams are making progress on quantum error correction seems to have stirred the once-skeptical cryptocurrency community. Coinbase CEO and co-founder Brian…
QuEra Launches Open-Source Package to Simulate Logical Quantum Circuits at Scale
Insider Brief PRESS RELEASE — QuEra Computing today open-sourced its T-gate simulator (Tsim), a GPU-accelerated quantum circuit simulator that, for the first time, lets researchers simulate non-Clifford gate…
CavilinQ Secures $8.8M Seed Round to Architect the Interconnect Layer for Scalable Quantum Systems
Insider Brief PRESS RELEASE — CavilinQ, a quantum hardware startup, today announced it has raised $8.8 million in seed funding to develop the interconnect hardware necessary to scale quantum computers beyond today’s…
Hybrid Classical--Quantum Optimization of Wireless Routing Using QAOA and Quantum Walks
arXiv:2604.01250v1 Announce Type: new Abstract: Routing in wireless communication networks is shaped by mobility, interference, congestion, and competing service requirements, making route selection a…
Exhaustive Optimisation of Automorphism Groups for Stabiliser Codes
arXiv:2604.01282v1 Announce Type: new Abstract: An important measure of utility for a quantum code is the identification of which logical operations can be implemented fault-tolerantly on its codespace. We introduce…
Bootstrapping Symmetries in Quantum Many-Body Systems from the Cross Spectral Form Factor
arXiv:2604.01296v1 Announce Type: new Abstract: Symmetries play a central role in quantum many-body physics, yet uncovering them systematically remains challenging. We introduce a bootstrap framework designed to…
Numerically Optimizing Shortcuts to Adiabaticity: A Hybrid Control Strategy
arXiv:2604.01301v1 Announce Type: new Abstract: Achieving fast, excitation-free quantum control is a vital challenge in modern quantum technologies. In many cases, shortcuts to adiabaticity enable fast adiabatic-like…
Programmable recirculating bricks mesh architecture for quantum photonics
arXiv:2604.01369v1 Announce Type: new Abstract: General-purpose programmable photonic processors offer a flexible foundation for integrating various functionalities within a single chip. A two-dimensional hexagonal…
Resource Estimation via Efficient Compilation of Key Quantum Primitives
arXiv:2604.01376v1 Announce Type: new Abstract: Resource estimation is a significant challenge in evaluating fault tolerant quantum computers. Existing approaches often rely on either fixed architectural assumptions…
Quantum polymorphism characterisation of commutativity gadgets in all quantum models
arXiv:2604.01408v1 Announce Type: new Abstract: Commutativity gadgets provide a technique for lifting classical reductions between constraint satisfaction problems to quantum-sound reductions between the…
Distributed Variational Quantum Linear Solver
arXiv:2604.01426v1 Announce Type: new Abstract: This paper develops a distributed variational quantum algorithm for solving large-scale linear equations. For a linear system of the form $Ax=b$, the large square…
Classical shadows with arbitrary group representations
arXiv:2604.01429v1 Announce Type: new Abstract: Classical shadows (CS) has recently emerged as an important framework to efficiently predict properties of an unknown quantum state. A common strategy in CS protocols…
Twisted Fiber Bundle Codes over Group Algebras
arXiv:2604.01478v1 Announce Type: new Abstract: We introduce a twisted fiber-bundle construction of quantum CSS codes over group algebras \(R=\mathbb F_2[G]\), where each base generator carries a generator-dependent…
Practical Tomography of Multi-Time Processes
arXiv:2604.01482v1 Announce Type: new Abstract: Characterising multi-time quantum processes is essential for analysing temporally correlated noise and for designing effective control and mitigation strategies. A…
The Quantum Walk Characteristic Polynomial Distinguishes All Strongly Regular Graphs of Prime Orde
arXiv:2604.01507v1 Announce Type: new Abstract: Let $G$ be a strongly regular graph of prime order $p$ with connection degree $k \geq 6$. We prove that the \emph{quantum walk characteristic polynomial}…
Codimension-controlled universality of quantum Fisher information singularities at topological band-touching defects
arXiv:2604.01515v1 Announce Type: new Abstract: Topological phase transitions in generic multiband systems are mediated by band-touching defects whose codimension -- the number of momentum directions along which the…
DQC1-completeness of normalized trace estimation for functions of log-local Hamiltonians
arXiv:2604.01519v1 Announce Type: new Abstract: We study the computational complexity of estimating the normalized trace $2^{-n}Tr[f(A)]$ for a log-local Hamiltonian $A$ acting on $n$ qubits. This problem arises…
Single-shot measurement learning as a self-certifying estimator for quantum-enhanced sensing
arXiv:2604.01534v1 Announce Type: new Abstract: Single-shot measurement learning (SSML) learns a compensation unitary from a one-bit success/failure record and halts after a prescribed run of consecutive successes.…
Scalable Ground-State Certification of Quantum Spin Systems via Structured Noncommutative Polynomial Optimization
arXiv:2604.01555v1 Announce Type: new Abstract: A fundamental challenge in quantum physics is determining the ground-state properties of many-body systems. Whereas standard approaches, such as variational…
Quantum-Enhanced Processing with Tensor-Network Frontends for Privacy-Aware Federated Medical Diagnosis
arXiv:2604.01616v1 Announce Type: new Abstract: We propose a privacy-aware hybrid framework for federated medical image classification that combines tensor-network representation learning, MPC-secured aggregation,…
Distribution of Bell State Entanglement in Qubit Networks via Collision Models
arXiv:2604.01773v1 Announce Type: new Abstract: We propose a general scheme to controllably distribute pairwise entanglement in a quantum network of qubits by exploiting environmental ancilla qubits interacting with…
Topology-Hiding Path Validation for Large-Scale Quantum Key Distribution Networks
arXiv:2604.01831v1 Announce Type: new Abstract: Secure long-distance communication in quantum key distribution (QKD) networks depends on trusted repeater nodes along the entire transmission path. Consequently, these…
Curvature-induced bound states in quantum wires
arXiv:2604.01856v1 Announce Type: new Abstract: A classical particle under spatial constraints is strictly confined to live on a specific space manifold or path, but this assumption is incompatible with the…
Transversal non-Clifford gates on almost-good quantum LDPC and quantum locally testable codes
arXiv:2604.01874v1 Announce Type: new Abstract: We exhibit nontrivial transversal logical multi-controlled-$Z$ gates on $[\![N,\Theta(N),\tilde\Theta(N)]\!]$ quantum low-density parity-check codes and…
A Loop-Shaping Approach to Coherent Feedback Control in Cavity Optomechanical Cooling
arXiv:2604.01891v1 Announce Type: new Abstract: We present a loop-shaping approach to coherent feedback (CF) control. By formulating the coupling between a quantum system and its environment in terms of the noise…
Quantum-Inspired Geometric Classification with Correlation Group Structures and VQC Decision Modeling
arXiv:2604.01930v1 Announce Type: new Abstract: We propose a geometry-driven quantum-inspired classification framework that integrates Correlation Group Structures (CGR), compact SWAP-test-based overlap estimation,…
Towards Chemically Accurate and Scalable Quantum Simulations on IQM Quantum Hardware: A Quantum-HPC Hybrid Approach
arXiv:2604.01983v1 Announce Type: new Abstract: We present a large-scale experimental study of quantum-computing-based molecular simulation carried out on IQM's Sirius 24-qubit superconducting processor, utilizing up…
Compact system development of efficient quantum-entangled photon sources towards deployable and industrial devices
arXiv:2604.02024v1 Announce Type: new Abstract: Entangled photon pair sources are a key enabling technology for quantum communication and networking, yet their deployment beyond laboratory environments is hindered by…
Perspectives in and on Quantum Theory
arXiv:2604.02026v1 Announce Type: new Abstract: I take a pragmatist perspective on quantum theory. This is not a view of the world described by quantum theory. In this view quantum theory itself does not describe the…
Quantum search algorithm for similar subgraph identification under fixed edge removal
arXiv:2604.02027v1 Announce Type: new Abstract: We introduce a novel quantum algorithm for similar subgraph identification in form of an NP-hard cardinality-constrained binary quadratic optimization problem. Given a…
High-threshold decoding of non-Pauli codes for 2D universality
arXiv:2604.02033v1 Announce Type: new Abstract: Topological codes have many desirable properties that allow fault-tolerant quantum computation with relatively low overhead. A core challenge for these codes, however,…
Quantitative Universal Approximation for Noisy Quantum Neural Networks
arXiv:2604.02064v1 Announce Type: new Abstract: We provide here a universal approximation theorem with precise quantitative error bounds for noisy quantum neural networks. We focus on applications to Quantitative…
Photonic qubit encoding interconversion for heterogeneous quantum networking
arXiv:2604.02081v1 Announce Type: new Abstract: Quantum information processing, communication, and sensing networks are being developed with various qubit platforms that use different encoding schemes. Connecting…
Constrained Quantum Optimization via Iterative Warm-Start XY-Mixers
arXiv:2604.02083v1 Announce Type: new Abstract: The Quantum Approximate Optimization Algorithm (QAOA) is a leading hybrid heuristic for combinatorial optimization, but efficiently handling hard constraints remains a…
Q2NS Demo: A Quantum Network Simulator Based on ns-3
arXiv:2604.02112v1 Announce Type: new Abstract: Q2NS is an open-source quantum network simulator built on ns-3, the de facto standard for classical network simulation. By inheriting ns-3's mature classical stack and…
The Phase Quantum Walk: A Unified Framework for Graph State Distribution in Quantum Networks
arXiv:2604.02169v1 Announce Type: new Abstract: Distributing arbitrary graph states across quantum networks is a central challenge for modular quantum computing and measurement-based quantum communication. I…
A Pragmatist Understanding of Quantum Mechanics
arXiv:2604.02197v1 Announce Type: new Abstract: Applications of quantum mechanics have led to many successful predictions and explanations of puzzling phenomena, and we now apply quantum mechanics to gain, process,…
High-bandwidth Coherence Cloning using Optical-Phase-Locking Feedforward
arXiv:2604.02218v1 Announce Type: new Abstract: Ultra-narrow-linewidth lasers with suppressed high-frequency phase noise are critical for quantum control and precision metrology. While optical phase locking (OPL) is…
Quantum Time-Space Tradeoffs for Exponential Dynamic Programming
arXiv:2604.02233v1 Announce Type: new Abstract: We investigate the quantum algorithms for dynamic programming by Ambainis et al. (SODA'19). While giving provable complexity speedups and applicable to a variety of…
Space-Efficient Quantum Algorithm for Elliptic Curve Discrete Logarithms with Resource Estimation
arXiv:2604.02311v1 Announce Type: new Abstract: Solving the Elliptic Curve Discrete Logarithm Problem (ECDLP) is critical for evaluating the quantum security of widely deployed elliptic-curve cryptosystems.…
Towards High-Brightness Perfect Photon Blockade
arXiv:2604.02314v1 Announce Type: new Abstract: Single-photon sources with high single-photon purity and high brightness are key elements of many future quantum technologies. While photon blockade (PB) is widely…
Temperature and integrability-breaking correspondence via adiabatic transformations
arXiv:2604.01285v1 Announce Type: cross Abstract: We reveal a correspondence between temperature and integrability-breaking in classical and quantum many-body systems through the lens of geometry and adiabatic…
Dissipative Floquet engineering of gapped many-body phases using thermal baths
arXiv:2604.01291v1 Announce Type: cross Abstract: Floquet engineering, the control of a quantum system by means of time-periodic driving, allows to modify the properties of the system so that it becomes described by…
Collective quantum tunneling with time-dependent generator coordinate method
arXiv:2604.01906v1 Announce Type: cross Abstract: Inspired by the work of McGlynn and Simenel [Phys. Rev. C {\bf 102}, 064614 (2020)], this study investigates the quantum tunneling of two interacting distinguishable…
Quantum Networking Fundamentals: From Physical Protocols to Network Engineering
arXiv:2604.01910v1 Announce Type: cross Abstract: The realization of the Quantum Internet promises transformative capabilities in secure communication, distributed quantum computing, and high-precision metrology.…
Efficient Auxiliary-Field Quantum Monte Carlo using Isometric Tensor Hypercontraction
arXiv:2604.02054v1 Announce Type: cross Abstract: Auxiliary Field Quantum Monte Carlo (AFQMC) has emerged as a powerful framework for treating strongly correlated electronic systems, offering a favorable balance…
Emergence of volume-law scaling for entanglement negativity from the Hawking radiation of analogue black holes
arXiv:2604.02075v1 Announce Type: cross Abstract: The quantum information content of Hawking radiation holds the key to understanding black-hole evaporation and the fate of unitarity. Motivated by recent advances in…
Tensor invariants for multipartite entanglement classification
arXiv:2604.02269v1 Announce Type: cross Abstract: Organising the space of entanglement structures of a multipartite quantum system is a much more challenging task than its bipartite version: while the local unitary…
Witnessing network steerability of every bipartite entangled state without inputs
arXiv:2406.11994v3 Announce Type: replace Abstract: Quantum steering is an asymmetric form of quantum nonlocality where one can detect whether a measurement on one system can steer or change another distant system.…
Multiband dispersion and warped vortices of strongly-interacting photons
arXiv:2502.11553v2 Announce Type: replace Abstract: We present a theoretical study of quantum correlations between interacting photons realized through co-propagating Rydberg polaritons. We show that the spatial…
Structure, Positivity and Classical Simulability of Kirkwood-Dirac Distributions
arXiv:2502.11784v2 Announce Type: replace Abstract: The Kirkwood-Dirac (KD) quasiprobability distribution is known for its role in quantum metrology, thermodynamics, as well as quantum foundations. In this work we…
A circuit-differentiation framework for Green's functions on quantum computers
arXiv:2505.05563v3 Announce Type: replace Abstract: We propose a general framework for computing Retarded Green's Functions (RGFs) on quantum computers by recasting their evaluation as a problem of circuit…
Trace Estimation of Quantum State Powers: Sample Complexity and Computational Hardness
arXiv:2505.09563v2 Announce Type: replace Abstract: As often emerges in various basic quantum properties such as R\'enyi and Tsallis entropies, the trace of quantum state powers $\text{tr}(\rho^q)$ has attracted a…
High-order interactions in quantum optomechanics: fluctuations, dynamics and thermodynamics
arXiv:2506.00685v2 Announce Type: replace Abstract: Quantum optomechanics describes the interaction between a confined field and a fluctuating wall due to radiation pressure. The dynamics of this system is typically…
Universal cooling of quantum systems via randomized measurements
arXiv:2506.11964v4 Announce Type: replace Abstract: Designing cooling protocols is believed to require knowledge of the system spectrum. In contrast, cooling in nature occurs whenever the system is coupled to a cold…
Stabilizer R\'{e}nyi Entropy Encodes Fusion Rules of Topological Defects and Boundaries
arXiv:2507.10656v2 Announce Type: replace Abstract: We demonstrate that the stabilizer R\'{e}nyi entropy (SRE), a computable measure of quantum magic, can serve as an information-theoretic probe for universal…
Average-computation benchmarking for local expectation values in digital quantum devices
arXiv:2507.18708v3 Announce Type: replace Abstract: As quantum devices progress towards a quantum advantage regime, they become harder to benchmark. A particularly relevant challenge is to assess the quality of the…
Energy-Invariant Catalysis of Stable Ergotropy in Strongly Coupled Spin-Chain Quantum Batteries
arXiv:2508.02772v3 Announce Type: replace Abstract: Quantum batteries (QBs) provide a platform for exploring quantum-scale energy storage, yet most existing analyses rely on weak-coupling and Markovian…
Towards reconstructing quantum structured light on a quantum computer
arXiv:2509.21804v3 Announce Type: replace Abstract: We introduce a variational quantum computing approach for quantum state reconstruction within a discretized logical framework, using experimental measurement data…
Blind quantum computing with different qudit resource state architectures
arXiv:2510.06323v2 Announce Type: replace Abstract: We discuss how blind quantum computing generalizes to multi-level quantum systems (qudits), which offers advantages compared to the qubit approach. Here, a quantum…
Liouvillian Exceptional Points in Quantum Brickwork Circuits
arXiv:2510.10629v4 Announce Type: replace Abstract: We demonstrate that Liouvillian exceptional points (LEPs), previously explored only in continuous Lindbladian dynamics, also emerge in discrete brickwork completely…
Resource-Efficient Variational Quantum Classifier
arXiv:2511.09204v2 Announce Type: replace Abstract: We introduce the unambiguous quantum classifier based on Hamming distance measurements combined with classical post-processing. The proposed approach improves…
Heralded Linear Optical Generation of Dicke States
arXiv:2512.20881v2 Announce Type: replace Abstract: Entanglement is a fundamental feature of quantum mechanics and a key resource for quantum information processing. Among multipartite entangled states, Dicke states…
Quantum Error Correction and Dynamical Decoupling: Better Together or Apart?
arXiv:2602.19042v2 Announce Type: replace Abstract: Quantum error correction/detection (QEC/QED) and dynamical decoupling (DD) are tools for protecting quantum information. A natural goal is to combine them to…
Overflow-Safe Polylog-Time Parallel Minimum-Weight Perfect Matching Decoder: Toward Experimental Demonstration
arXiv:2603.03776v2 Announce Type: replace Abstract: Fault-tolerant quantum computation (FTQC) requires fast and accurate decoding of quantum errors, which is often formulated as a minimum-weight perfect matching…
The Convergence Frontier: Integrating Machine Learning and High Performance Quantum Computing for Next-Generation Drug Discovery
arXiv:2603.17790v3 Announce Type: replace Abstract: Integrating quantum mechanics into drug discovery marks a decisive shift from empirical trial-and-error toward quantitative precision. However, the prohibitive cost…
Lamb-shift-induced switching of energy transfer in open quantum batteries
arXiv:2603.22337v2 Announce Type: replace Abstract: Open quantum batteries (QBs) operate under unavoidable system-environment interactions, where both dissipation and coherent renormalization influence their…
Fluctuation-induced symmetry breaking in high harmonic generation for bicircular quantum light
arXiv:2603.24377v2 Announce Type: replace Abstract: Symmetries are ubiquitous in physics and play a pivotal role in light-matter interactions, where they determine the selection rules governing allowed atomic…
Finite-Degree Quantum LDPC Codes Reaching the Gilbert-Varshamov Bound
arXiv:2603.24588v2 Announce Type: replace Abstract: We construct asymptotically good nested Calderbank-Shor-Steane (CSS) code pairs from Hsu-Anastasopoulos codes and MacKay-Neal codes. In the fixed-degree regime, we…
PAEMS: Precise and Adaptive Error Model for Superconducting Quantum Processors
arXiv:2603.29439v2 Announce Type: replace Abstract: Superconducting quantum processor units (QPUs) are incapable of producing massive datasets for quantum error correction (QEC) because of hardware limitations. Thus,…
Four Generations of Quantum Biomedical Sensors
arXiv:2603.29944v2 Announce Type: replace Abstract: Quantum sensing technologies offer transformative potential for ultra-sensitive biomedical sensing, yet their clinical translation remains constrained by classical…
When level repulsion fails: non-normality and chaos in open quantum systems
arXiv:2604.00118v2 Announce Type: replace Abstract: For Hamiltonian systems, level statistics provide a faithful diagnostic of quantum chaos. By analogy, the statistics of the Lindbladian spectrum are often used in…
Quantum Non-Moduler Multiplication with QFT-Based Multi Input Parallelized Adder
arXiv:2604.00272v2 Announce Type: replace Abstract: In this study, we propose an efficient quantum multiplication approach based on a QFT-assisted parallelized addition scheme. The multiplication stage is implemented…
Quantum teleportation between simulated binary black holes
arXiv:2503.10761v2 Announce Type: replace-cross Abstract: The quantum description of a black hole predicts that quantum information hidden behind the event horizon can be teleported outside almost instantaneously. In…
Entanglement Asymmetry and Quantum Mpemba Effect for Non-Abelian Global Symmetry
arXiv:2509.05597v3 Announce Type: replace-cross Abstract: Entanglement asymmetry is a measure that quantifies the degree of symmetry breaking at the level of a subsystem. In this work, we investigate the entanglement…
Hybrid Quantum-Classical Autoencoders for Unsupervised Network Intrusion Detection
arXiv:2512.05069v2 Announce Type: replace-cross Abstract: Unsupervised anomaly-based intrusion detection requires models that can generalize to attack patterns not observed during training. This work presents the…
Revival Dynamics from Equilibrium States: Scars from Chords in SYK
arXiv:2512.16836v2 Announce Type: replace-cross Abstract: We develop a novel framework to build quantum many-body scar states in bipartite systems characterized by perfect correlation between the Hamiltonians…
Dicke superradiance in degenerate quantum matter: interplay of exchange statistics and spatial confinement
arXiv:2603.00778v2 Announce Type: replace-cross Abstract: Collective radiance effects in quantum degenerate systems, such as superradiance and subradiance of a partially inverted ensemble, are shaped by the interplay…
CavilinQ Secures $8.8M Seed Round to Develop Modular Quantum Interconnects
CavilinQ, a Cambridge-based hardware startup, has closed an $8.8 million seed funding round led by QVT, with participation from Safar Partners, MFV Partners, Serendipity Capital, and Harper Court Ventures. The…
Quantum entanglement between electrons and ions captured at attosecond timescale
Quantum mechanics is extremely successful at describing the behavior of matter at the atomic level. This success forces one to accept that certain aspects of physical reality go far beyond our intuition. Among these,…
QuiX Quantum Demonstrates Below-Threshold Error Mitigation in Photonic Hardware
QuiX Quantum, in collaboration with NASA’s Quantum Artificial Intelligence Laboratory, the University of Twente, and Freie Universität Berlin, has demonstrated "below-threshold" error mitigation on a photonic quantum…
Twinning! Quantum ‘Digital Twins’ Tackle Error Correction Task to Speed Path to Reliable Quantum Computers
Insider Brief In a week that has seen a parade of error-correction advances, a team of quantum computing researchers say they have shown a practical way to simulate large, error-prone quantum systems on classical…
QuEra Releases Open-Source GPU-Accelerated T-Gate Simulator for Error Correction Research
QuEra Computing has released Tsim, an open-source, GPU-accelerated quantum circuit simulator designed to model non-Clifford gate operations. The tool addresses a technical gap in the development of quantum error…
Quanscient and Haiqu Demonstrate Algorithm for Scalable Computational Nonlinear Fluid Simulations
Quanscient and Haiqu have announced a new quantum algorithm designed to accelerate Computational Fluid Dynamics (CFD) simulations. The researchers successfully executed a 15-step nonlinear fluid benchmark involving…
Dancing to Invisible Choreography, Quantum Computers Can Balance The Noise
Insider Brief PRESS RELEASE — Large-scale quantum computers are waiting in the wings. One of the main reasons we don’t have them yet is because quantum hardware is so noisy. This isn’t the type of noise you’d want to…
Infleqtion Delivers Quantum Precision Timing for Mission-Critical Systems
Insider Brief PRESS RELEASE — Infleqtion (NYSE: INFQ), a global leader in quantum sensing and quantum computing powered by neutral-atom technology, announced availability of the first quantum-enabled precision timing…
QuiX Quantum Demonstrates Below-Threshold Error Mitigation in Photonic Quantum Computing For First Time
Insider Brief PRESS RELEASE — QuiX Quantum, a leading provider of photonic quantum computing hardware, today announced it has demonstrated “below threshold” error mitigation for the first time on a photonic quantum…
Quip.Network Launches Quantum-Classical Blockchain Testnet Built in Consultation with D-Wave
Insider Brief PRESS RELEASE — Postquant Labs, the developer building Quip.Network, today announced the launch of the first publicly available quantum-classical blockchain testnet, built in consultation with D-Wave…
How noise limits today's quantum circuits
Imagine you're trying to build a very long, complicated chain of dominoes. The aim is that each domino hits the next one perfectly, all the way down the line, producing an amazing result at the end. A quantum circuit…
Novel approach to quantum error correction portends a scalable future for quantum computing
A University of Sydney quantum physicist has developed a new approach to quantum error correction that could significantly reduce the number of physical qubits required to build large-scale, fault-tolerant quantum…
World's largest quantum circuit simulation for quantum chemistry achieved on 1,024 GPUs
A joint research team between the Center for Quantum Information and Quantum Biology (QIQB) at The University of Osaka and Fixstars Corporation has demonstrated one of the world's largest classical simulations of…
Useful quantum computers could be built with as few as 10,000 qubits, team finds
Quantum computers of the future may be closer to reality thanks to new research from Caltech and Oratomic, a Caltech-linked start-up company. Theorists and experimentalists teamed up to develop a new approach for…
Ultrafast quantum light pulses measured for the first time
Researchers at the Technion—Israel Institute of Technology have, for the first time, measured the temporal duration of individual pulses of an extraordinary form of quantum light known as bright squeezed vacuum…
Quantum Computing Inc. Deploys Dirac-3 Quantum Machine on Quantum Corridor Network
Quantum Computing Inc. (QCi) has installed its Dirac-3 quantum optimization machine at the Digital Crossroad Data Center in Hammond, Indiana. This deployment marks the first installation of the Dirac-3 in a…
EPB Joins Southeastern Quantum Collaborative to Support Regional Infrastructure Integration
EPB has joined the Southeastern Quantum Collaborative (SQC) as an inaugural member. Led by the University of Alabama in Huntsville (UAH), the SQC is a regional association of academic, industrial, and government…
Quantum magnetism: Spin-flip process in atomic nucleus does not account for all magnetic behavior
In the air people breathe, the water on Earth, the stars in the sky and more, atoms are the building blocks that make up the universe. Understanding the structure of the atomic nucleus is crucial for research with…
Alice & Bob and Partners Awarded $3.9M ARPA-E Grant for Quantum Magnet Design
Alice & Bob, in collaboration with Los Alamos National Laboratory and GE Vernova, has been awarded $3.9 million from the U.S. Department of Energy’s ARPA-E Quantum Computing for Computational Chemistry (QC3) program.…
Monarch Quantum Secures $55M Growth Round to Scale Integrated Photonics Production
Monarch Quantum has closed a $55 million growth round led by Serendipity Capital, with participation from 55 North and Global Innovation Labs. This financing brings the company’s total capital and customer contracts…
QuSecure Joins NIST NCCoE Consortium for Post-Quantum Cryptography Migration
QuSecure has announced its participation in the Migration to Post-Quantum Cryptography Project consortium, organized by the National Cybersecurity Center of Excellence (NCCoE). This collaboration is designed to…
Stabilized laser components could shrink quantum computers from room- to chip-scale
Scientists in the Riccio College of Engineering at the University of Massachusetts Amherst and the University of California Santa Barbara have demonstrated key laser and ion trap components necessary to help…
Pairs of atoms observed existing in two places at once for the first time
Quantum physicists at ANU have observed atoms entangled in motion. "It's really weird for us to think that this is how the universe works," says Dr. Sean Hodgman from the ANU Research School of Physics. "You can read…
Quantum researchers engineer extremely precise phonon lasers
When lasers were invented in the 1960s, they opened new avenues for scientific discovery and everyday applications, from scanners at the grocery store to corrective eye surgery. Conventional lasers control…
Finding the 'quantum needle' in a haystack: New filtering method can isolate photons
In quantum technologies, everything depends on the ability to detect the properties carried by a single photon. But in the real world, that photon of interest is often buried in a sea of unwanted light—a true "needle…
Silicon quantum computer performs logical operations for the first time
Silicon is ubiquitous in modern electronics, and now it is becoming increasingly useful in quantum computing. In particular, silicon's compatibility with existing chip technology and its long coherence times in…
Framework unifies the classical and quantum Mpemba effects
Physicists have developed a new theoretical framework which unifies a wide array of seemingly unrelated "Mpemba effects": counterintuitive cases where systems driven further from equilibrium relax faster than those…
Novel protocol reconstructs quantum states in large-scale experiments up to 96 qubits
Quantum computers, systems that process information leveraging quantum mechanical effects, could outperform classical computers on some computationally demanding tasks. Despite their potential, as the size of quantum…
A universal scheme can verify any quantum state
Quantum technologies, devices that can process, store, or detect information leveraging quantum mechanical effects, could outperform classical devices in some tasks or scenarios. Despite their potential, verifying…
Quadratic gravity theory reshapes quantum view of Big Bang
Waterloo scientists have developed a new way to understand how the universe began, and it could change what we know about the Big Bang and the earliest moments of cosmic history. Their work suggests that the…
Physicists create optical phenomenon inspired by the quantum Hall and spin Hall effects
Researchers at the Würzburg site of the Cluster of Excellence ctd.qmat have succeeded in transferring the topological quantum Hall and spin Hall effects to a hybrid light-matter system by harnessing targeted material…
Experimental evidence shows how photons spread across multiple paths in an interferometer
The nature of quantum particles has long puzzled scientists. While single-particle interference suggests that a photon can behave like a spread-out wave, a whole photon is only ever detected in one specific place.…
Quantum computer accurately simulates real magnetic materials, reproducing national laboratory data
Studying and designing novel materials is a central application of quantum mechanics. Chemists, materials scientists, and physicists focus on subtle interactions in quantum materials and to uncover them they rely on…
Unlocking scalable entanglement will enable next-generation quantum computing
Quantum computing promises to transform our world in rapid, radical and revolutionary ways: solving in seconds problems that would take classical computers years, accelerating the discovery of new medicines, creating…
Quantum experiment shows events may have no fixed order
For the first time, a team of physicists in Austria has carried out an experiment that appears to verify the principle of indefinite causal order: an idea that suggests that timelines of events can exist in multiple…