Dajka Jerzy
Institute of Physics, University of Silesia in Katowice, 40-007 Katowice, Poland.
Silesian Center for Education and Interdisciplinary Research, University of Silesia in Katowice, 41-500 Chorzów, Poland.
Entropy (Basel). 2021 May 23;23(6):652. doi: 10.3390/e23060652.
Quantum ring accommodating interacting spin-less fermions threaded by magnetic flux with a non-classical component added to a static, inducing persistent current, is considered. It is investigated how current flowing in the ring becomes affected by a state of non-classical flux and how Coulomb interaction between fermions influences entanglement of quantum ring and the driving field. In particular it is shown that in an absence of decoherence and under certain conditions fermion-fermion interaction is necessary for a ring-field entanglement to occur.
考虑了一个量子环，其中容纳了相互作用的无自旋费米子，这些费米子被磁通量穿过，并且添加了一个非经典分量到静态场中以诱导持续电流。研究了环中流动的电流如何受到非经典通量状态的影响，以及费米子之间的库仑相互作用如何影响量子环与驱动场的纠缠。特别地，结果表明在没有退相干的情况下，在某些条件下，费米子 - 费米子相互作用对于环 - 场纠缠的发生是必要的。
