期刊
PHYSICAL REVIEW LETTERS
卷 116, 期 23, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.116.230502
关键词
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资金
- EU (ERC, DIADEMS, SIQS, EQUAM)
- DFG [SFB/TR21, FOR1493]
- BMBF
- DARPA
- NSF
- CUA
- NSSEFF
- ARO MURI
- Alexander von Humboldt Professorship
- Moore Foundation
- Israel Science Foundation [039-8823]
- Volkswagenstiftung
- Division Of Physics
- Direct For Mathematical & Physical Scien [1506284] Funding Source: National Science Foundation
We experimentally demonstrate the protection of a room-temperature hybrid spin register against environmental decoherence by performing repeated quantum error correction whilst maintaining sensitivity to signal fields. We use a long-lived nuclear spin to correct multiple phase errors on a sensitive electron spin in diamond and realize magnetic field sensing beyond the time scales set by natural decoherence. The universal extension of sensing time, robust to noise at any frequency, demonstrates the definitive advantage entangled multiqubit systems provide for quantum sensing and offers an important complement to quantum control techniques.
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