Spin wave based quantum storage of electronic spin with a ring array of nuclear spins

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dc.creatorWang, Y. D.
dc.creatorLi, Y.
dc.creatorSong, Z.
dc.creatorSun, C. P.
dc.date2004-09-18
dc.date2006-04-14
dc.date.accessioned2026-07-07T06:40:45Z
dc.date.available2026-07-07T06:40:45Z
dc.descriptionWe propose a solid state based protocol to implement the universal quantum storage for electronic spin qubit. The quantum memory in this scheme is the spin wave excitation in the ring array of nuclei in a quantum dot. We show that the quantum information carried by an arbitrary state of the electronic spin can be coherently mapped onto the spin wave excitations or the magnon states. With an appropriate external control, the stored quantum state in quantum memory can be read out reversibly. We also explore in detail the quantum decoherence mechanism due to the inhomogeneous couplings between the electronic spin and the nuclear spins.
dc.description7 pages, 5 figures
dc.identifierhttps://arxiv.org/abs/quant-ph/0409120
dc.identifierhttp://arxiv.org/abs/quant-ph/0409120
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/101476
dc.subjectQuantum Physics
dc.subjectMesoscale and Nanoscale Physics
dc.titleSpin wave based quantum storage of electronic spin with a ring array of nuclear spins
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