期刊
PHYSICAL REVIEW LETTERS
卷 104, 期 17, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.104.177403
关键词
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资金
- Swiss NSF [200021-121757, PP00P2-123519/1]
- ERC Advanced Investigator
- Swiss National Science Foundation (SNF) [PP00P2_123519, 200021_121757] Funding Source: Swiss National Science Foundation (SNF)
We show that coherent optical manipulation of a single confined spin is possible even in the absence of spin-orbit coupling. To this end, we consider the non-Markovian dynamics of a single valence orbital hole spin that has optically induced spin-exchange coupling to a low-temperature partially polarized electron gas. We show that the fermionic nature of the reservoir induces a coherent component to the hole spin dynamics that does not generate entanglement with the reservoir modes. We analyze in detail the competition of this reservoir-assisted coherent contribution with dissipative components displaying markedly different behavior at different time scales and determine the fidelity of optically controlled spin rotations.
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