GCRI · 양자기술
양자와 소재
Quantum technologies depend on materials, from superconducting circuits and semiconductor spin qubits to photonic chips and isotopically pure crystals. In turn, quantum simulation may one day help design new materials and molecules. This page sets out how materials limit quantum devices, how quantum methods could aid materials science, and what evidence serves the researchers and funders working at this intersection.
일이 진행되는 방식.
Quantum testbed
Quantum and materials · Testbed lab · Device QD-77
큐비트
| Q0 | 142 | 116 | 0.02 | In spec |
| Q1 | 83 | 48 | 0.01 | In spec |
| Q2 | 69 | 99 | 0.01 | Drifting |
| Q3 | 142 | 21 | 0.05 | Drifting |
| Q4 | 162 | 83 | 0.03 | Drifting |
Device
- Topology
- heavy-hex, illustrative
- 2Q fidelity
- 0.989
- 이용
- by committee
- 라벨
- 관측
그림Quantum testbed: example names and illustrative values, not a record or a live system.
Quantum and materials: how the risk develops.
Chemistry and materials simulation. The dossier below sets out how the risk develops, what is measured, where the data come from, how it is modelled and who decides.
Defects cause decoherence
Impurities, surface defects and two-level 시스템 in materials interact with qubits and shorten coherence. Better materials and fabrication extend it.
Fabrication sets yield
Producing many identical qubits needs precise fabrication. Variability between devices, even from one wafer, limits how far systems can scale.
Some inputs are scarce
Helium-3 for dilution refrigerators, isotopically enriched silicon and specialised lasers have limited suppliers, creating supply risks.
Quantum simulation of matter
Simulating molecules and materials is a leading candidate use of quantum computers, though classical methods remain strong for most problems today.
How quantum and materials is modelled, measured and tested.
모형, 그 가정, 데이터, 불확실성을 과학자나 엔지니어가 확인할 형태로 제시합니다. 구조는 발행된 방법을 따릅니다. 제시된 값은 예시이며 결과가 아닙니다.
시스템 모형
The couplings between the systems in quantum and materials: signs of influence, a reinforcing and a balancing loop, and cross-links where stress jumps.
Quantum devices depend on materials with their own supply risks.
Materials studies are designed for the 전략 시스템 시리즈. Export controls coordinated through the Wassenaar Arrangement and national lists apply to some quantum items.
- Supply data for specialised materials.
- Export control analyses.
측정되는 것과 그 정확도.
각 지표에는 단위, 주기, 그 뒤의 출처 종류, 값에 붙을 근거 표시가 있습니다. 값은 표시하지 않습니다. 값은 프로그램이 자체 권한으로 제공합니다.
| 지표 | 단위 | 주기 | 출처 유형 | 라벨 |
|---|---|---|---|---|
| Qubit coherence time by material platform | microseconds | per publication | Peer-reviewed results | 관측 |
| Device yield in fabrication | percent of functional qubits | per fabrication run | Foundry and lab reports | 보고됨 |
| Helium-3 supply | litres per year | 연간 | Government and industry reports | 추정 |
| Quantum chemistry demonstrations with classical comparison | 건수 | 검토별 | Literature review | 추정 |
| Specialised component suppliers | count by component | 평가별 | Supply chain studies | 추정 |
| Materials databases used for qubit research | 건수 | 평가별 | Research surveys | 보고됨 |
근거의 출처.
이름이 명시된 공개 데이터셋과 기관 기록으로, 각각 라이선스 등급이 있습니다. 협약에 따른 출처는 그 조건에 따라서만 사용하며 결코 재게시하지 않습니다.
| 출처 | 제공하는 것 | 라이선스 등급 |
|---|---|---|
| Peer-reviewed materials and device literature | Coherence and fabrication results | Licence per article |
| Materials Project and other open materials databases | Computed materials properties | 공개, CC BY 4.0 |
| Government reports on helium-3 and critical inputs | Supply and demand of scarce inputs | Public, terms per government |
| Quantum supply chain studies | Component suppliers and dependencies | Licence per publication (to check) |
| Benchmark studies of quantum chemistry algorithms | Comparisons with classical methods | Licence per publication |
누가 결정하며 근거는 무엇에 쓰이는지.
Quantum Technologies prepares evidence. The decisions below are taken by the authorities named, under their own rules, and never by the platform.
| 결정 주체 | 질문 | 이 페이지가 제공하는 근거 |
|---|---|---|
| 연구 재원 제공 기관 | Which materials and fabrication research to support | Bottleneck reviews |
| Industry and national 랩 | How to secure specialised inputs | Supply risk assessments |
| Chemistry and materials researchers | Where quantum simulation could help their work | Use case assessments |
이 주제가 생산하는 산출물
- Materials bottleneck reviews for qubit platforms
- Supply risk assessments for specialised inputs
- Assessments of quantum simulation use cases with classical baselines
- Evidence notes for research funders
전문가가 묻는 것.
The question is whether quantum simulation will beat improving classical methods on problems that matter.
- Which chemical and materials problems are genuinely hard for classical methods?
- How large and how error-free must a quantum computer be to simulate them usefully?
- Can near-term noisy devices provide any useful result, or is error correction required?
- How will results be verified when classical methods cannot reproduce them?
- Which industrial and scientific questions would change if simulation improved?
메커니즘과 동인.
The behaviour of molecules and materials depends on how electrons interact. For many 시스템, classical approximations such as density functional theory work well. For strongly correlated systems, such as some catalysts, transition-metal complexes and high-temperature superconductors, the computational cost of exact classical simulation grows very rapidly with system size. A quantum computer represents quantum states natively and could, in principle, simulate such systems efficiently.
Resource estimates for industrially relevant problems suggest that large, error-corrected machines would be required. Meanwhile classical methods, including tensor networks and machine-learning approaches, keep improving and raising the bar. Quantum materials research also runs the other way: new materials are needed to build better qubits.
연구되는 방식과 방법의 한계.
| 방법 또는 데이터 | 표시 내용 | 한계 |
|---|---|---|
| Classical computational chemistry | Accurate results for many 시스템 | Cost grows quickly for strongly correlated electrons |
| Quantum algorithm resource estimation | Qubits and operations needed for target problems | Highly sensitive to algorithm and hardware assumptions |
| Small-scale quantum simulation experiments | Proof of principle on simple molecules | Not yet beyond classical reach for useful problems |
| Experimental materials characterisation | Ground truth for validation | Experiments are costly and not always available |
Where this page’s references lead.
이 페이지를 읽을 때 기준이 되는 기구와 문서. 상태와 판은 바뀌며, 각 링크는 발행 기구로 연결됩니다.
질문과 답변.
Why do materials matter for qubits?
What is quantum simulation?
Are there supply risks for quantum technology?
Has a quantum computer already designed a new material or drug?
Why is chemistry a natural application?
Should organisations wait for quantum simulation?
이 페이지에서 증거를 기여하십시오.
보고서 is the Consortium’s quarterly publication. What you know about this subject can become evidence, a case or a correction in the next edition, credited to you and published under CC BY 4.0 where it is your own work.
- 이메일게이트웨이 GW-GCRI이 페이지에서 보내기증거, 정정, 사례, 방법, 검토, 번역 또는 프로필 입력 자료. 이 페이지의 태그가 붙어 도착하므로, 이를 담당하는 편집자가 받게 됩니다.
- Zenodo개방형 예치기탁하고 커뮤니티에 제출하기ORCID iD로 Zenodo에 직접 기록을 게시한 뒤, 그곳의 Reports 커뮤니티에 제출하십시오. 큐레이터가 검토하며, DOI는 귀하의 것으로 남습니다.
- 보고서GCRI모든 기여 방법 보기기여 유형, 각각의 검토 방식, 받게 되는 크레디트, 라이선스, 그리고 절대 받지 않는 것.
개인정보, 민감한 인프라 세부 정보, 공유할 권리가 없는 자료는 절대 보내지 마십시오. 기여물은 사용 전에 검토됩니다. 기여물을 보낸다고 해서 저작자 지위나 편집 권한이 부여되지 않으며, 후원으로 조사 결과를 얻을 수 없습니다.
방법, 데이터세트 또는 질문을 가져오십시오.
정보와 문의는 오늘부터 열려 있습니다. 문의에는 참조 번호가 부여되고 다음 단계가 안내됩니다. 신청, 결제, 컴퓨팅 할당, 등록은 해당 팀, 약관, 심사 역량이 갖추어졌을 때만 열립니다.
법률 문서.
이 사이트의 지도, 데이터와 그림은 맥락과 일반 정보로 제시됩니다. 조언, 예보 또는 경보가 아니며, 정보의 한계는 면책 고지와 데이터 고지에 나와 있습니다.