Evergreen Intelligence
Quantum Computing Companies
Monitor quantum computing companies with source-backed updates, primary records, related companies, Intel links, and internal QAtlas context.
Last updated
2026-08-21
Records on this page are derived from structured QAtlas data and source-backed Good Morning discovery updates.
Recent updates
8 shown2026-08-21
A 21 August 2026 arXiv preprint develops bounds on virtual-distillation success probability, framing the error-mitigation method as a spectral filter and deriving limits from a Slepian concentration operator.
2026-08-20
An updated 20 August 2026 arXiv preprint presents fermionic quantum-machine-learning circuit architectures intended to balance trainability, expressivity, classical-simulation hardness, and gradient-evaluation cost.
2026-08-14
A new arXiv theory paper studies how measurement feedback and correlated records shape work statistics in a quantum information engine, including a coherence-transition interference contribution.
2026-08-14
A new arXiv paper evaluates quantum-jump descriptions of current fluctuations in non-additive open quantum systems and identifies conditions under which imperfect jump detection recovers Landauer-Büttiker results.
2026-08-13
A new arXiv hardware paper introduces edge-pass Purcell filters for superconducting-qubit readout, reporting 99.46% to 99.49% average readout fidelity with compact high-pass and low-pass implementations.
2026-08-12
A new arXiv paper presents a hybrid workflow that keeps data assimilation and dynamical simulation classical while using a QUBO-to-Ising formulation for quantum-assisted parameter estimation.
2026-08-06
This arXiv preprint presents a shadow-tomography protocol with dimension-independent sample complexity and polylogarithmic dependence on the number of observables. The authors state that it answers Aaronson’s original dimension-independent sample-complexity question and gives an exponential improvement over the prior dimension-independent result, using sequential pretty-good measurements and a refined error analysis.
2026-08-06
This arXiv preprint studies Bell correlations for a free real quantum scalar field on a noncommutative Moyal plane. The authors show that twist phases in multiparticle statistics can generate entanglement between wave-packet modes and that suitable local measurements can violate the CHSH Bell inequality, providing an operational probe of the noncommutative multiparticle sector.
Primary records
114 records| Entity | Update | Type | Date | Source |
|---|---|---|---|---|
| Tohoku University | Slepian Bounds on the Success Probability of Virtual Distillation | research paper | 2026-08-21 | arXiv Quant-Ph Recent |
| arXiv Quant-Ph New | Scalable Quantum Machine Learning: Trainability, Expressivity and Efficiency | research paper | 2026-08-20 | arXiv Quant-Ph New |
| arXiv Quant-Ph Recent | Current fluctuations in a non-additive open quantum system: breakdown of the quantum-jump approach | research paper | 2026-08-14 | arXiv Quant-Ph Recent |
| Nanchang University | Measurement-Feedback Quantum Information Engine: Coherence-Transition Interference and Correlated Work Statistics | research paper | 2026-08-14 | arXiv Quant-Ph Recent |
| arXiv Quant-Ph New | A scalable edge-pass Purcell filter for high-fidelity readout of superconducting qubits | research paper | 2026-08-13 | arXiv Quant-Ph New |
| arXiv Quant-Ph New | A Quantum Optimization Framework for Data-Assimilation-Augmented Parameter Estimation | research paper | 2026-08-12 | arXiv Quant-Ph New |
| University of Belgrade | Bell nonlocality from twisted statistics | research paper | 2026-08-06 | arXiv Quant-Ph Recent |
| arXiv Quant-Ph Recent | Dimension-Free Polylogarithmic Quantum Shadow Tomography from Sequential Pretty-Good Measurements | research paper | 2026-08-06 | arXiv Quant-Ph Recent |
| IBM | Quantum Error Management in Practice: A Cross-Stack Benchmark | research paper | 2026-08-05 | arXiv Quant-Ph New |
| arXiv Quant-Ph New | Local Uniqueness of the Born Rule on Categories with Complex-Weighted Morphisms | research paper | 2026-08-04 | arXiv Quant-Ph New |
| arXiv Quant-Ph Recent | Fermionic entropy: an efficiently measurable strong monotone for non-Gaussianity | research paper | 2026-07-31 | arXiv Quant-Ph Recent |
| Harvard University | Online Shadow Tomography Matching the Classical Bounds | research paper | 2026-07-31 | arXiv Quant-Ph Recent |
| arXiv Quant-Ph New | Cascading amplifiers can create exponentially large coherence | research paper | 2026-07-30 | arXiv Quant-Ph New |
| Zhengzhou University | Experimental Demonstration of a Measurement-Feedback Quantum Information Engine | research paper | 2026-07-30 | arXiv Quant-Ph New |
| University of Illinois Urbana-Champaign | Lifting Lifted Product Codes | research paper | 2026-07-30 | arXiv Quant-Ph Recent |
| Sorbonne University | Fault-Tolerant Logical Operations and Efficient State Preparation in Modular Quantum Architectures with Noisy Interfaces | research paper | 2026-07-29 | arXiv Quant-Ph Recent |
| Microsoft | Practical Quantum Topological Data Analysis with Applications to High-Dimensional Feature Extraction and Time Series Analysis | research paper | 2026-07-29 | arXiv Quant-Ph Recent |
| Pontificia Universidad Católica de Chile | Designing Tight Frames for Quantum Computing | research paper | 2026-07-28 | arXiv Quant-Ph New |
| IBM Research | Observable Estimation in the Absence of Classical Verification | research paper | 2026-07-28 | arXiv Quant-Ph Recent |
| arXiv Quant-Ph New | Malleability of transformations on the ciphertext in noisy Quantum public key encryption | research paper | 2026-07-27 | arXiv Quant-Ph New |
| National Kaohsiung Normal University | A Difference Operator Approach to Quantum Random Walks: Parseval Identity, Krawtchouk Matrices, and Hermite Limits | research paper | 2026-07-24 | arXiv Quant-Ph New |
| CSIRO | Can a quantum circuit detect the Unruh effect? | research paper | 2026-07-24 | arXiv Quant-Ph New |
| Florence Quantum Labs | Quantum mechanics on the line with two origins | research paper | 2026-07-24 | arXiv Quant-Ph New |
| arXiv Quant-Ph New | Enabling Neutral Atom Integration: Redesigning Device Models for Universal Quantum Ecosystems | research paper | 2026-07-23 | arXiv Quant-Ph New |
| arXiv Quant-Ph Recent | Fault-tolerant quantum algorithms for simulating atomic nuclei | research paper | 2026-07-23 | arXiv Quant-Ph Recent |
| arXiv Quant-Ph Recent | Flow-based Phase-space Tomography of Continuous-variable Quantum States | research paper | 2026-07-23 | arXiv Quant-Ph Recent |
| Quantinuum | Efficiently Simulable Pauli Correlation Encoding | research paper | 2026-07-22 | arXiv Quant-Ph Recent |
| Georgia Institute of Technology | Decoder Comparability Across Quantum Software Stacks: Repeated-Round Surface and Digitized-GKP Syndrome Replay | research paper | 2026-07-21 | arXiv Quant-Ph New |
| Georgia Institute of Technology | Hardware-in-the-Loop Syndrome-to-Decoder Validation for Repetition, Surface, CSS-LDPC, and Digitized-GKP Codes | research paper | 2026-07-21 | arXiv Quant-Ph New |
| Chicago Quantum Exchange | CQE-led Bloch Quantum Tech Hub raises $55 million to build US quantum supply chain | funding | 2026-07-20 | University of Chicago Quantum Exchange |
| arXiv Quant-Ph Recent | Hardware Robustness of Sample-Based Quantum Diagonalization | research paper | 2026-07-20 | arXiv Quant-Ph Recent |
| arXiv Quant-Ph Recent | QuantiSpect: A Structure-Aware Lightweight 3D CNN Pre-Decoder for Scalable Surface Code Quantum Error Correction | research paper | 2026-07-20 | arXiv Quant-Ph Recent |
| arXiv Quant-Ph Recent | Entanglement teleportation bounds locality in deep thermalisation | research paper | 2026-07-16 | arXiv Quant-Ph Recent |
| arXiv Quant-Ph New | Invariant-based pulse design suppresses leakage in a hybrid quantum transducer model | research paper | 2026-07-15 | arXiv Quant-Ph New |
| Institute of Science Tokyo | Pair-partition method constructs finite-rate quantum LDPC codes from circulant matrices | research paper | 2026-07-15 | arXiv Quant-Ph Recent |
| InQubator for Quantum Simulation | Stabilizer-scar protocol targets scalable quantum-simulation verification | research paper | 2026-07-15 | arXiv Quant-Ph New |
| Virginia Tech Center for Quantum Information Science and Engineering | An efficient algorithm for approximate shadow Hamiltonian simulation | research paper | 2026-07-13 | arXiv Quant-Ph Recent |
| Soochow University | Paraparticles intrinsically exhibit Hardy-space breakdown | research paper | 2026-07-13 | arXiv Quant-Ph Recent |
| São Carlos Institute of Physics | Ergotropic and passive contributions on the phase-space information geometry of Gaussian states | research paper | 2026-07-10 | arXiv Quant-Ph New |
| University of Chinese Academy of Sciences | Hardware-efficient quantum simulation of intense-field QED | research paper | 2026-07-10 | arXiv Quant-Ph New |
| Abdelmalek Essaadi University | Phase-switchable nonreciprocal entanglement via magnon squeezing in ring-cavity optomagnomechanics | research paper | 2026-07-10 | arXiv Quant-Ph Recent |
| Forschungszentrum Jülich | Comment on 'Beyond-classical computation in quantum simulation' | research paper | 2026-07-09 | arXiv Quant-Ph New |
| University of Tokyo | Irreducible Geometry of Higher-Order Correlator Families | research paper | 2026-07-09 | arXiv Quant-Ph Recent |
| University of Gdańsk | Typicality of Steering for Two-qubit States | research paper | 2026-07-09 | arXiv Quant-Ph Recent |
| AWS Center for Quantum Computing | AWS and Rice researchers propose quantum linear-system solvers beyond condition-number scaling | research paper | 2026-07-08 | arXiv Quant-Ph Recent |
| Jagiellonian University | Comment on 'Quantum Monge-Kantorovich Problem and Transport Distance between Density Matrices' | research paper | 2026-07-08 | arXiv Quant-Ph New |
| Sun Yat-sen University | EPIC-CIM: Training Convolutional Neural Networks on a Coherent Ising Machine via Equilibrium Propagation | research paper | 2026-07-08 | arXiv Quant-Ph New |
| Pasqal | Pasqal neutral-atom platform and enterprise-use context | technology update | 2026-07-08 | Pasqal News |
| Pasqal | Pasqal roadmap targets quantum advantage and 200 logical qubits | technology update | 2026-07-08 | Pasqal News |
| Institute of Physics and Technology, Mongolian Academy of Sciences | Researchers model multi-channel collective dissipation using SU(4) symmetric representations | research paper | 2026-07-08 | arXiv Quant-Ph Recent |
| Rigetti Computing | Rigetti Novera QPU commercial product context | product launch | 2026-07-08 | Rigetti News |
| National Institute of Standards and Technology | NIST demonstrates localized control of large rotating ion crystals with a spatial light modulator | research paper | 2026-07-07 | arXiv Quant-Ph New |
| Photonic Inc. | Photonic adds Microsoft Quantum and government affairs leaders after $200M raise | job signal | 2026-07-07 | Photonic Inc News |
| Quantinuum | Quantinuum commercializes Helios quantum computer access | product launch | 2026-07-07 | Quantinuum News |
| Rigetti Computing | Rigetti demonstrates Dayem-bridge thermometry integrated with superconducting qubit chips | research paper | 2026-07-07 | arXiv Quant-Ph New |
| Embry-Riddle Aeronautical University | Verifier and recovery loop targets latency in speculative quantum error-correction decoding | research paper | 2026-07-07 | arXiv Quant-Ph New |
| The University of Tokyo | Magic Renyi entropy framework unifies quantum computational resources | research paper | 2026-07-06 | arXiv Quant-Ph Recent |
| University of Toronto | Room-temperature coherent control of energy transport in a noisy bath | research paper | 2026-07-06 | arXiv Quant-Ph Recent |
| ETH Zurich Materials Theory | Complete multipole basis identifies an electric toroidal measure of crystal chirality | research paper | 2026-07-03 | arXiv Quant-Ph New |
| Quantinuum | Automated logical Clifford gadgets for heterogeneous architectures via chain maps | research paper | 2026-07-02 | arXiv Quant-Ph Recent |
| IBM | COMET compares penalty and XY-mixer QAOA for multiplex CRISPR target selection | research paper | 2026-07-02 | arXiv Quant-Ph New |
| Harish-Chandra Research Institute | Quantum mutual information as a robust probe of integrability in open quantum systems | research paper | 2026-07-02 | arXiv Quant-Ph Recent |
| IBM Quantum | Symmetries of Pauli Noise from Lindbladian Dynamics | research paper | 2026-07-02 | arXiv Quant-Ph Recent |
| arXiv | Topological Control of Quantum Chaos Diagnostics: OTOCs, Spectral Statistics, and Information Scrambling in Ising Model | research paper | 2026-07-02 | arXiv Quant-Ph Recent |
| UCLA Samueli School of Engineering | VQE algorithm benchmarks for amino acid ground-state energy simulation | research paper | 2026-07-02 | arXiv Quant-Ph New |
| NIPNE-HH | Exact quantum time compatible with positive energy | research paper | 2026-07-01 | arXiv Quant-Ph New |
| University of Chicago | Integrated Photon-Memory Entanglement Generation using Dual Photonic Resonators | research paper | 2026-07-01 | arXiv Quant-Ph New |
| Shanghai Jiao Tong University | Logarithmic negativity typically equals exact entanglement cost | research paper | 2026-07-01 | arXiv Quant-Ph New |
| Weierstrass Institute for Applied Analysis and Stochastics | Noisy quantum circuit simulation with the tensor jump method | research paper | 2026-07-01 | arXiv Quant-Ph New |
| D-Wave Quantum Inc. | D-Wave to receive $1.5 million grant through NSF project | grant | 2026-06-30 | D-Wave Press Releases |
| QuEra Computing | QuEra publishes updated roadmap toward Libra and next-generation fault-tolerant neutral-atom systems | technology update | 2026-06-29 | QuEra News |
| Innovate UK Business Connect | Innovate UK opens £33M quantum computing hardware CR&D opportunity | grant | 2026-06-27 | Innovate UK Quantum |
| Chicago Quantum Exchange | Chicago Quantum Exchange launches Talent Portal with hundreds of quantum roles | job signal | 2026-06-23 | University of Chicago Quantum Exchange |
| Alpine Quantum Technologies | AQT solution pages highlight LYNX 32768 quantum volume and rack-mounted ion-trap systems | technology update | 2026-06-09 | AQT News |
| Alpine Quantum Technologies | AQT LYNX quantum computer series reaches reported 32768 quantum volume | product launch | 2026-05-05 | AQT News |
| Rigetti Computing | Rigetti technology stack and Cepheus processor context | technology update | 2026-04-07 | Rigetti News |
| IEEE Quantum Technical Community | IEEE Quantum Technical Community profile lists leadership and quantum-technology community role | organization | 2026-01-01 | IEEE Quantum |
| Innovation, Science and Economic Development Canada | Canada National Quantum Strategy overview | government policy | 2025-05-15 | Canadian National Quantum Strategy |
| Toshiba Europe | Toshiba Quantum Key Distribution product and explainer page | technology update | 2025-01-01 | Toshiba Quantum |
| Quantinuum | Quantinuum fault-tolerant roadmap and Apollo background | technology update | 2024-09-17 | Quantinuum News |
| Alice & Bob | Alice & Bob engineering background page | technology update | Undated | Alice & Bob News |
| Alice & Bob | Alice & Bob platform background page | technology update | Undated | Alice & Bob News |
| Alice & Bob | Alice & Bob quantum computing science page | technology update | Undated | Alice & Bob News |
| Atom Computing | Atom Computing company profile background | organization | Undated | Atom Computing News |
| Atom Computing | Atom Computing technology background page | technology update | Undated | Atom Computing News |
| Quantum Optical Materials and Systems | Cambridge Quantum Optical Materials and Systems research group profile | organization | Undated | Cambridge Quantum |
| Chicago Quantum Exchange | Chicago Quantum Exchange Quantum Prairie company directory | organization | Undated | University of Chicago Quantum Exchange |
| Chicago Quantum Exchange | Chicago Quantum Exchange quantum technology explainer | technology update | Undated | University of Chicago Quantum Exchange |
| D-Wave | D-Wave product overview page | technology update | Undated | D-Wave Press Releases |
| Diraq | Diraq technology background page | technology update | Undated | Diraq News |
| Google Quantum AI | Google Quantum AI roadmap page | technology update | Undated | Google Quantum AI |
| IBM Quantum | IBM Quantum products and services page | technology update | Undated | IBM Quantum Blog |
| IBM Quantum | IBM Quantum research and publications page | other | Undated | IBM Quantum Blog |
| IonQ | IonQ quantum benchmarking page | technology update | Undated | IonQ Newsroom |
| IonQ | IonQ quantum cloud services page | technology update | Undated | IonQ Newsroom |
| IQM Quantum Computers | IQM products index page | organization | Undated | IQM Newsroom |
| IQM Quantum Computers | IQM Radiance product page | technology update | Undated | IQM Newsroom |
| IQM Quantum Computers | IQM Spark 5-qubit on-premises product page | technology update | Undated | IQM Newsroom |
| Microsoft Quantum | Microsoft Quantum for chemistry page | technology update | Undated | Microsoft Quantum Blog |
| Microsoft Quantum | Microsoft Quantum getting started page | technology update | Undated | Microsoft Quantum Blog |
| National Quantum Initiative | National Quantum Strategy background page | government policy | Undated | National Quantum Initiative |
| PsiQuantum | PsiQuantum research page | technology update | Undated | PsiQuantum News |
| PsiQuantum | PsiQuantum technology background page | technology update | Undated | PsiQuantum News |
| Q-CTRL | Q-CTRL product portfolio summarizes AI-powered quantum control, computing, education, and navigation tools | technology update | Undated | Q-CTRL Blog |
| Quantum Flagship | Quantum Flagship program background page | government policy | Undated | EU Quantum Flagship |
| Quantum Flagship | Quantum Flagship structure and governance page | government policy | Undated | EU Quantum Flagship |
| Quantum Machines | Quantum Machines superconducting qubit control page | technology update | Undated | Quantum Machines Blog |
| SandboxAQ | SandboxAQ company background page | organization | Undated | SandboxAQ News |
| SEEQC | SEEQC files registration statement for proposed IPO | other | Undated | SEEQC News |
| SEEQC | SEEQC joins CHIPS Act-backed NORDTECH quantum R&D program | partnership | Undated | SEEQC News |
| SEEQC | SEEQC receives Quantum Manufacturing Excellence Award | event | Undated | SEEQC News |
| SEEQC | SEEQC resources index repeats recent items | other | Undated | SEEQC News |
| Universal Quantum | Universal Quantum company profile highlights DLR client devices and UQConnect milestone | organization | Undated | Universal Quantum News |
| Universal Quantum | Universal Quantum profile and utility-scale quantum computer roadmap | organization | Undated | Universal Quantum News |