期刊
PHYSICAL REVIEW A
卷 87, 期 3, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevA.87.032326
关键词
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资金
- EPSRC through the Materials World Network [EP/I035536/1]
- European Research Council under the European Community's Seventh Framework Programme/ERC [279781]
- National Research Foundation
- Ministry of Education, Singapore
- KCWong Education Foundation
- Academy of Finland [135794, 251748]
- Emil Aaltonen Foundation
- Royal Society
- EPSRC [EP/H025952/1, EP/I035536/1, EP/H025952/2, EP/I035536/2] Funding Source: UKRI
- Engineering and Physical Sciences Research Council [EP/H025952/2, EP/H025952/1, EP/I035536/2, EP/I035536/1] Funding Source: researchfish
High-fidelity quantum operations are a key requirement for fault-tolerant quantum information processing. Manipulation of electron spins is usually achieved with time-dependent microwave fields. In contrast to the conventional dynamic approach, adiabatic geometric phase operations are expected to be less sensitive to certain kinds of noise and field inhomogeneities. Here, we introduce an adiabatic geometric phase gate for the electron spin. Benchmarking it against existing dynamic and nonadiabatic geometric gates through simulations and experiments, we show that it is indeed inherently robust against inhomogeneity in the applied microwave field strength. While only little advantage is offered over error-correcting composite pulses for modest inhomogeneities less than or similar to 10%, the adiabatic approach reveals its potential for situations where field inhomogeneities are unavoidably large. DOI: 10.1103/PhysRevA.87.032326
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