Quantum dynamical speedup for correlated initial states
arXiv:2302.09364 · doi:10.1088/1572-9494/acdce8
Abstract
The maximal evolution speed of any quantum system can be expressed by the quantum speed limit time. In this paper, we consider a model in which the system has a correlation with the environment. The influence of the initial correlation between the system and environment on the quantum speed limit is investigated. It is shown that the appearance of non-Markovianity effects causes the speedup of quantum evolution. Moreover, we demonstrate the dependence of quantum dynamical speedup on the quantum coherence of the correlated initial state.
arXiv comment8 pages , 7 figures , comments are welcome
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