Peierls distorted chain as a quantum data bus for quantum state transfer

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dc.creatorHuo, M. X.
dc.creatorLi, Ying
dc.creatorSong, Z.
dc.creatorSun, C. P.
dc.date2006-06-01
dc.date.accessioned2026-07-07T12:24:39Z
dc.date.available2026-07-07T12:24:39Z
dc.descriptionWe systematically study the transfer of quantum state of electron spin as the flying qubit along a half-filled Peierls distorted tight-binding chain described by the Su-Schrieffer-Heeger (SSH) model, which behaves as a quantum data bus. This enables a novel physical mechanism for quantum communication with always-on interaction: the effective hopping of the spin carrier between sites $A$ and $B$ connected to two sites in this SSH chain can be induced by the quasi-excitations of the SSH model. As we prove, it is the Peierls energy gap of the SSH quasi-excitations that plays a crucial role to protect the robustness of the quantum state transfer process. Moreover, our observation also indicates that such a scheme can also be employed to explore the intrinsic property of the quantum system.
dc.description10 pages, 6 figures
dc.identifierhttps://arxiv.org/abs/cond-mat/0606021
dc.identifierhttp://arxiv.org/abs/cond-mat/0606021
dc.identifierEurophysics Letters 84, 30004 (2008)
dc.identifierdoi:10.1209/0295-5075/84/30004
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/214395
dc.subjectMesoscale and Nanoscale Physics
dc.subjectStatistical Mechanics
dc.subjectQuantum Physics
dc.titlePeierls distorted chain as a quantum data bus for quantum state transfer
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