On a relation of the angular frequency to the Aharonov-Casher geometric phase in a quantum dot

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• 作者：P.M.T. Barboza ; K. Bakke ; ^{kbakke@fisica.ufpb.br" class="auth_mail" title="E-mail the corresponding author}
• 关键词：Aharonov&ndash ; Casher effect ; Geometric quantum phases ; Quantum dot ; Persistent spin current ; Linear plus Coulomb-type potential ; Biconfluent Heun function
• 刊名：Annals of Physics
• 出版年：2016
• 出版时间：September 2016
• 年：2016
• 卷：372
• 期：Complete
• 页码：457-467
• 全文大小：452 K

文摘

By analysing the behaviour of a neutral particle with permanent magnetic dipole moment confined to a quantum dot in the presence of a radial electric field, Coulomb-type and linear confining potentials, then, an Aharonov–Bohm-type effect for bound states and a dependence of the angular frequency of the system on the Aharonov–Casher geometric phase and the quantum numbers associated with the radial modes, the angular momentum and the spin are obtained. In particular, the possible values of the angular frequency and the persistent spin currents associated with the ground state are investigated in two different cases.