English

Modulating quantum evolution of moving-qubit by using classical driving

Quantum Physics 2023-02-07 v2

Abstract

In this work, we study quantum evolution of an open moving-qubit modulated by a classical driving field. We obtain the density operator of qubit at zero temperature and analyze its quantum evolution dynamics by using quantum speed limit time (QSLT) and a non-Markovianity measure introduced recently. The results show that both the non-Markovian environment and the classical driving can speed up the evolution process, this quantum speedup process is induced by the non-Markovianity and the critical points only depend on the qubit velocity. Moreover, the qubit motion will delay the evolution process, but this negative effect of the qubit velocity on the quantum speedup can be suppressed by the classical driving. Finally, we give the corresponding physical explanation by using the decoherence rates.

Keywords

Cite

@article{arxiv.2204.10515,
  title  = {Modulating quantum evolution of moving-qubit by using classical driving},
  author = {Qilin Wang and Jianhe Yang and Rongfang Liu and Hong-Mei Zou and Ali Mortezapour and Dan Long and Jia Wang and Qianqian Ma},
  journal= {arXiv preprint arXiv:2204.10515},
  year   = {2023}
}

Comments

10 pages, 12figures

R2 v1 2026-06-24T10:55:33.162Z