Current-induced entanglement of nuclear spins in quantum dots

Journal of the Physical Society of Japan

Volumn 73, Issue 2, 2004, Pages 307-310

  Eto, Mikio ^a   Ashiwa, Takashi ^a   Murata, Mikio ^a  

^a KEIO UNIVERSITY   (Japan)

Author keywords

Dephasing; Dicke effect; Entanglement; Hyperfine interaction; Nuclear spins; Quantum dot; Spin blockade; Superradiance

Indexed keywords

EID: 21144446842     PISSN: 00319015     EISSN: None     Source Type: Journal    
DOI: 10.1143/JPSJ.73.307     Document Type: Article

References (29)

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22. We assume that the final state of nuclear spins is a pure state, not a mixed state with electron states |↑〉 or |↓〉, after the electron tunnels out of the dot. We observe a spin flip of electron by the leakage current in a spin-blocked situation, whereas we cannot observe which of the nuclear spins was flipped. In a spin-flip process, a phonon may be emitted. However, if the wavelength of the phonon is much longer than the nucleus-nucleus distance, we do not obtain such information on the nuclear spins.
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24. 2,3)
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