Dzyaloshinskii-Moriya interaction as a fast quantum information scrambler

• URL: http://arxiv.org/abs/2110.03645v1
• Date: Thu, 7 Oct 2021 17:34:09 GMT
• Title: Dzyaloshinskii-Moriya interaction as a fast quantum information scrambler
• Authors: Fatih Ozaydin, Azmi Ali Altintas, Can Yesilyurt, Cihan Bay{\i}nd{\i}r
• Abstract summary: Black holes are conjectured to be the fastest information scramblers. We study the effect of DM interaction on the speed of scrambling the quantum information.
• Score: 0.0
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: Black holes are conjectured to be the fastest information scramblers, and within holographic duality, the speed of quantum information scrambling of thermal states of quantum systems is at the heart of studies of chaos and black hole dynamics. Here, considering the Ising interaction on the thermal state of spin chains with Dzyaloshinskii-Moriya (DM) interaction and measuring the out-of-time-order correlation functions, we study the effect of DM interaction on the speed of scrambling the quantum information. On the contrary to its advantages in quantum information and metrology such as exciting entanglement and quantum Fisher information, we show that DM interaction speeds up the information scrambling. We also show that the increasing temperature slows down the scrambling process due to vanishing quantum correlations.

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