The Quantum Journal

Your premier source for quantum computing news, research breakthroughs, and industry developments

Last updated: April 09, 2026 at 23:05 UTC

Latest Articles (122 total)

Terra Quantum to Go Public in $3.25 Billion SPAC Merger
Terra Quantum AG, a St. Gallen-based leader in hybrid quantum-classical solutions, has signed a non-binding letter of intent (LOI) to go public through a business combination with Mountain Lake…
Qoro Quantum Secures $750,000 Pre-Seed to Orchestrate Hybrid Networks
Qoro Quantum, a London-based deep-tech startup, has raised $750,000 in pre-seed funding to address the integration bottleneck between classical and quantum computing. The round was led by Ada…
Horizon Quantum to Acquire IonQ 256-Qubit Trapped-Ion System for Multi-Modal Testbed
Horizon Quantum Holdings Ltd. (Nasdaq: HQ) and IonQ (NYSE: IONQ) have announced a strategic agreement for the purchase of a 6th-generation, chip-based 256-qubit trapped-ion system. This acquisition…
Infleqtion and NASA Deploy Upgraded Quantum Hardware to International Space Station
Infleqtion (NYSE: INFQ), in collaboration with NASA’s Jet Propulsion Laboratory (JPL), has provided an upgraded physics package to the International Space Station (ISS) via the Northrop Grumman-24…
Terra Quantum AG to Go Public in $3.25 billion SPAC Deal
Insider Brief PRESS RELEASE — Terra Quantum AG (“Terra Quantum”), a leading quantum technology company, and Mountain Lake Acquisition Corp. II (“MLAC II”) (Nasdaq: MLAA), a special purpose…
Cleveland Clinic Quantum Innovation Catalyzer Program Awardees Announced
Insider Brief PRESS RELEASE — The Cleveland Clinic Quantum Innovation Catalyzer Program announced its newest cohort of start-up company awardees advancing quantum computing applications in healthcare…
Infleqtion Announces 2026 Revenue Guidance of $40 Million
Insider Brief PRESS RELEASE — Infleqtion (NYSE: INFQ) (the “Company”) a global leader in quantum computing and quantum sensing powered by neutral-atom technology, today announced 2026 revenue…
Riverlane Demonstrates Real-Time QEC Latency Performance Advancements
Riverlane, a developer of quantum error correction (QEC) technology, has released performance metrics for its second-generation Deltaflow 2 system, demonstrating a mean latency of 16.32µs. This…
Who’s News: Strategic Leadership Appointments at QuiX Quantum, Qubitrium, Qunnect, Delft Circuits, Q.ANT, and QuSecure
QuiX Quantum has appointed Robin Wittland as Chief Commercial Officer (CCO). Wittland brings over 25 years of experience from senior leadership roles at Microsoft and WORTMANN AG, and most recently…

News →

Terra Quantum AG to Go Public in $3.25 billion SPAC Deal
Insider Brief PRESS RELEASE — Terra Quantum AG (“Terra Quantum”), a leading quantum technology company, and Mountain Lake Acquisition Corp. II (“MLAC II”) (Nasdaq: MLAA), a special purpose…
Cleveland Clinic Quantum Innovation Catalyzer Program Awardees Announced
Insider Brief PRESS RELEASE — The Cleveland Clinic Quantum Innovation Catalyzer Program announced its newest cohort of start-up company awardees advancing quantum computing applications in healthcare…
Infleqtion Announces 2026 Revenue Guidance of $40 Million
Insider Brief PRESS RELEASE — Infleqtion (NYSE: INFQ) (the “Company”) a global leader in quantum computing and quantum sensing powered by neutral-atom technology, today announced 2026 revenue…
Infleqtion and NASA Deliver Next-Generation Quantum Capabilities to International Space Station
Insider Brief PRESS RELEASE — Infleqtion (NYSE: INFQ), a global leader in quantum computing and quantum sensing powered by neutral-atom technology, is providing upgraded quantum hardware to the…
Horizon Quantum To Acquire IonQ 256-Qubit Trapped-Ion System
Insider Brief PRESS RELEASE — Horizon Quantum Holdings Ltd. (“Horizon Quantum”), a pioneer of software infrastructure for quantum applications and IonQ — the world’s leading quantum platform company…
SuperQ Joins Quantum Security Defence to Enable Quantum Resilient Infrastructure
Insider Brief PRESS RELEASE — SuperQ Quantum Computing Inc. (“SuperQ Quantum”, “SuperQ”, or the “Company”) (CSE: QBTQ; OTCQB: QBTQF; Frankfurt: 25X), a leader in sovereign quantum-safe infrastructure…

Research →

Accelerating Quantum State Encoding with SIMD: Design, Implementation, and Benchmarking
arXiv:2604.06270v1 Announce Type: new Abstract: Efficient data encoding is the main factor affecting how fast hybrid quantum-classical algorithms run, but traditional simulators spend most of their…
Optimization of entanglement harvesting with arbitrary temporal profiles: the limit of second order perturbation theory
arXiv:2604.06303v1 Announce Type: new Abstract: We study the protocol of entanglement harvesting when two local probes couple to the vacuum of a real scalar quantum field with arbitrary temporal…
Heterogeneous architectures enable a 138x reduction in physical qubit requirements for fault-tolerant quantum computing under detailed accounting
arXiv:2604.06319v1 Announce Type: new Abstract: Quantum computer hardware is predicted to scale over hundreds of thousands of qubits coming online in the next decade. Despite significant theoretical…
Probing the Planck scale with quantum computation
arXiv:2604.06322v1 Announce Type: new Abstract: General relativity and quantum mechanics are incompatible at the Planck scale. This contention can be examined if a quantum computer is set to operate…
Probabilistic and approximate universal quantum purification machines
arXiv:2604.06325v1 Announce Type: new Abstract: We study the task of lifting arbitrary quantum states and channels to purifications and Stinespring dilations, respectively, in both the probabilistic…
Directional and correlated optical emission from a waveguide-engineered molecule with local control
arXiv:2604.06410v1 Announce Type: new Abstract: Radiative coupling between quantum emitters leads to a range of spectacular emission phenomena. Dicke studied the foundations of collectively enhanced…

Industry →

Terra Quantum to Go Public in $3.25 Billion SPAC Merger
Terra Quantum AG, a St. Gallen-based leader in hybrid quantum-classical solutions, has signed a non-binding letter of intent (LOI) to go public through a business combination with Mountain Lake…
Qoro Quantum Secures $750,000 Pre-Seed to Orchestrate Hybrid Networks
Qoro Quantum, a London-based deep-tech startup, has raised $750,000 in pre-seed funding to address the integration bottleneck between classical and quantum computing. The round was led by Ada…
Horizon Quantum to Acquire IonQ 256-Qubit Trapped-Ion System for Multi-Modal Testbed
Horizon Quantum Holdings Ltd. (Nasdaq: HQ) and IonQ (NYSE: IONQ) have announced a strategic agreement for the purchase of a 6th-generation, chip-based 256-qubit trapped-ion system. This acquisition…
Infleqtion and NASA Deploy Upgraded Quantum Hardware to International Space Station
Infleqtion (NYSE: INFQ), in collaboration with NASA’s Jet Propulsion Laboratory (JPL), has provided an upgraded physics package to the International Space Station (ISS) via the Northrop Grumman-24…
Riverlane Demonstrates Real-Time QEC Latency Performance Advancements
Riverlane, a developer of quantum error correction (QEC) technology, has released performance metrics for its second-generation Deltaflow 2 system, demonstrating a mean latency of 16.32µs. This…
Who’s News: Strategic Leadership Appointments at QuiX Quantum, Qubitrium, Qunnect, Delft Circuits, Q.ANT, and QuSecure
QuiX Quantum has appointed Robin Wittland as Chief Commercial Officer (CCO). Wittland brings over 25 years of experience from senior leadership roles at Microsoft and WORTMANN AG, and most recently…