On the possibility of complete revivals after quantum quenches to a critical point
Khadijeh Najafi; M. A. Rajabpour · 2017 · arXiv
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Abstract (excerpt)
In a recent letter, J. Cardy, Phys. Rev. Lett. \textbf{112}, 220401 (2014), the author made a very interesting observation that complete revivals of quantum states after quantum quench can happen in a period which is a fraction of the system size. This is possible for critical systems that can be described by minimal conformal field theories (CFT) with central charge $c<1$. In this article, we show that these complete revivals are impossible in microscopic realizations of those minimal models. We will prove the absence of the mentioned complete revivals for the critical transverse field Ising
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Metadata source: arXiv