Quantum computing
Computer hardware technology that uses quantum mechanics
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We include updates on Richard Feynman, Qubit, IonQ, David Deutsch, D-Wave Systems, Nitrogen-vacancy center, Hidden subgroup problem, IBM Q System One, BQP, Sycamore processor, Quantinuum, Solovay–Kitaev theorem, ZX-calculus, Magic state distillation, Qutrit, Stabilizer code ... and more.
| June 2025 | IonQ agreed to acquire British quantum computing startup Oxford Ionics for approximately $1.1 billion. |
| 2025 |
IBM Quantum Platform
IBM reported over 400,000 users of the IBM Quantum Platform, with users generating more than 2,800 research papers using the platform's quantum devices.
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| 2025 | D-Wave sold an Advantage system to Forschungszentrum Jülich, with scientists publishing research in Nature exploring quantum computer simulation of false vacuum decay. |
| May 2025 |
National Quantum Initiative Act
The Texas House of Representatives passed House Bill 4751, establishing the Texas Quantum Initiative to promote quantum technology advancements in computing, networking, and sensing.
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| May 2025 |
National Quantum Initiative Act
U.S. lawmakers introduced the bipartisan Quantum Sandbox for Near-Term Applications Act (S.1344), proposing to amend the National Quantum Initiative Act and establish public-private partnerships for quantum technology development.
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| May 2025 |
Quantum volume
Quantinuum continues to maintain System Model H2-1 with 56 qubits and a quantum volume of 2
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| 2025 | Alternative expected delivery timeframe for the Advantage 2 quantum computer system, marking a potential milestone in D-Wave's quantum computing development. |
| 2025 | D-Wave published a paper in Science journal describing a computational simulation of a magnetic material performed dramatically faster on a quantum computer, though some physicists questioned the claims. |
| 2025 |
Physical and logical qubits
Microsoft researchers conducted a study demonstrating single-shot interferometric measurement of fermion parity in indium arsenide–aluminum heterostructures, providing evidence for Majorana zero modes crucial for topological quantum computation.
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| April 2025 |
Quantum teleportation
Researchers at the University of Illinois Urbana-Champaign achieved quantum teleportation with 94% fidelity using a nanophotonic indium-gallium-phosphide platform. The method used nonlinear sum frequency generation (SFG), which mitigated multiphoton noise and increased teleportation efficiency by a factor of 10,000 compared to previous SFG-based systems.
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| 2025 |
Qubit
The University of Innsbruck team successfully simulated two-dimensional lattice gauge theories on their qudit quantum computer.
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| March 25 2025 | Rigetti Computing begins collaboration with NVIDIA's Quantum Computing Lab in Boston on cryptography technology research. |
| March 2025 | PsiQuantum raised an additional $750 million, increasing its valuation to $6 billion. |
| February 19 2025 |
Quantum computing and communication
Microsoft announced Majorana 1, the first quantum processing unit based on a topological core. This breakthrough created a new class of materials called topoconductors, utilizing topological superconductivity to control hardware-protected topological qubits and determine fermion parity in Majorana zero modes.
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| February 14 2025 |
Quantum computing and communication
Researchers Björkman et al. demonstrated a virtual-state process of Landau-Zener-Stückelberg-Majorana transition using transmon technology, nearly eliminating the AC Stark shift in the system process.
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| January 2025 |
Quantum error correction
Researchers at UNSW Sydney developed an error correction method using antimony-based materials and high-dimensional quantum states (qudits), encoding quantum information in the nuclear spin of a phosphorus atom embedded in silicon to demonstrate enhanced error resilience.
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| 2024 | Expected delivery timeframe for the Advantage 2 quantum computer system, representing a significant technological advancement in D-Wave's quantum computing portfolio. |
| 2024 |
Physical and logical qubits
IBM researchers created a quantum error correction code 10 times more efficient than previous research, successfully protecting 12 logical qubits for approximately a million error check cycles using 288 qubits.
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| 2024 |
Physical and logical qubits
Microsoft and Quantinuum announced experimental results showing the creation of four logical qubits using only 30 physical qubits, utilizing quantum error correction techniques and a qubit virtualization system with active syndrome extraction.
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| 2024 |
Quantum processors
D-Wave released the D-Wave Advantage 2 quantum processor with a Zephyr Z15 architecture, expanding to 7440 qubits.
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| 2024 |
Qubit
Researchers demonstrated extensible control of superconducting qudits up to d=4 based on programmable two-photon interactions.
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| 2024 | The Australian Commonwealth and Queensland governments announced a multi-million dollar investment (US$250 million) in PsiQuantum to build the world's first utility-scale, fault-tolerant quantum computer in Brisbane, Queensland, with plans to have the system operational by the end of 2027. |
| 2024 |
Stefanie Barz
Received Honorary Professorship from Vienna University of Technology, recognizing her contributions to Quantum Information and Technology.
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| December 25 2024 |
Quantum computing and communication
Intel demonstrated a test chip with 12 spin-qubits fabricated using immersion and extreme ultraviolet lithography (EUV), doubling the number of spin qubits from their September 2022 publication.
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| December 16 2024 |
Quantum processors
USTC launched the Zuchongzhi 3.0 superconducting transmon quantum processor with 105 qubits, featuring 99.90% single-qubit gate fidelity and 99.62% two-qubit gate fidelity.
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| December 15 2024 |
Quantum computing and communication
Oak Ridge National Laboratory researchers achieved 100% uptime transmission of entangled quantum signals through a commercial fiber-optic network for over 30 hours using automatic polarization compensation.
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| December 9 2024 |
Quantum computing and communication
Google Quantum AI announced Willow, the first quantum processor with error-corrected qubits that improve exponentially, completing a benchmark computation in under five minutes that would take supercomputers 10 septillion years.
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| December 2 2024 |
Quantum computing and communication
Physicists observed quantum entanglement within individual protons, revealing the complex interdependence of quarks and gluons at the subatomic level.
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| November 2024 |
Quantum processors
IBM released the Heron R2 quantum processor with 156 qubits and a 96.5% two-qubit fidelity.
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| October 2024 | The National Quantum Computing Centre Facility based in Harwell opens. |
| August 2024 |
Quantum volume
Quantinuum launches System Model H2-1 with a significant increase to 56 qubits while maintaining a quantum volume of 2
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| August 5 2024 |
Quantum computing and communication
Brown University research discovered fractional excitons in bilayer graphene under the fractional quantum Hall effect, expanding excitonic understanding and quantum computing potential.
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| July 2024 | PsiQuantum signed a memorandum of understanding (MOU) with five Queensland universities to develop educational programs in quantum fields and collaborate on research projects. |
| July 2024 | PsiQuantum announced a partnership with the State of Illinois, Cook County, and the City of Chicago to anchor Governor JB Pritzker's new Illinois Quantum and Microelectronics Park. |
| July 2024 | UK Government announces the third round of quantum technologies hubs to ensure UK benefits from quantum future. |
| June 30 2024 |
Quantum computing and communication
Oxford University researchers successfully linked two quantum processors via an optical fiber network, demonstrating quantum entanglement between distant qubits and paving the way for distributed quantum computing.
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| May 2024 |
IBM Quantum Platform
IBM sunset the IBM Quantum Lab in favor of a serverless model, directing users to transition providers qBraid and OVHCloud for cloud-based notebook environments.
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| May 30 2024 |
Quantum computing and communication
Researchers at Photonic and Microsoft performed a teleported CNOT gate between qubits separated by 40 meters, confirming remote quantum entanglement between T-centers.
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| May 10 2024 |
Quantum computing and communication
Google and Paul Scherrer Institute researchers developed a hybrid digital-analog quantum simulator, combining techniques to enhance precision and flexibility in quantum computing.
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| May 8 2024 |
Quantum computing and communication
Researchers successfully demonstrated deterministic fusion of quantum states into states with up to eight qubits.
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| May 1 2024 |
Quantum computing and communication
Intel researchers used a cryogenic 300-mm wafer prober to collect high-volume data on hundreds of spin qubit devices at 1.6 K, characterizing single electrons across full wafers with high yield.
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| April 2024 |
Quantum volume
Quantinuum updates System Model H1-1 to maintain 20 qubits and a quantum volume of 2
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| April 2024 |
Noisy intermediate-scale quantum era
Microsoft researchers announced a significant breakthrough in quantum computing, demonstrating a substantial reduction in error rates that would only require 4 logical qubits, potentially accelerating the timeline for large-scale quantum computing from decades to years.
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| April 2024 |
Quantum error correction
Microsoft researchers successfully tested a quantum error correction code achieving an error rate with logical qubits 800 times better than the underlying physical error rate, using 30 of 32 qubits on Quantinuum's trapped-ion hardware.
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| April 2024 | Dr. Richard 'Rick' Muller becomes director of IARPA, succeeding Catherine Marsh. |
| February 2024 | IonQ opened a dedicated research and development facility in Bothell, Washington, claiming it as the first quantum computing factory in the United States. |
| February 2024 |
Quantum volume
IQM introduces a 20-qubit system with a quantum volume of 2
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This contents of the box above is based on material from the Wikipedia articles Noisy intermediate-scale quantum era, National Quantum Initiative Act, Intelligence Advanced Research Projects Activity, Quantum programming, Quantum error correction, List of quantum processors, PsiQuantum, Rigetti Computing, Stefanie Barz, Quantum teleportation, Parity measurement, Quantum volume, IBM Quantum Platform, Timeline of quantum computing and communication, D-Wave Systems, IonQ, Qubit, Physical and logical qubits & UK National Quantum Technologies Programme, which are released under the Creative Commons Attribution-ShareAlike 4.0 International License.