Emergence of prethermal states in a driven dissipative system through cross-correlated dissipation

¹ Department of Physics, Rajiv Gandhi University - Rono Hills, Doimukh (Itanagar), 791112, Arunachal Pradesh, India
² Department of Physical Sciences, Indian Institute of Science Education and Research Kolkata Mohanpur, 741246, West Bengal, India

^(a) E-mail: rangeet@iiserkol.ac.in (corresponding author)

Received: 13 July 2022
Accepted: 12 May 2023

Abstract

Periodically driven closed quantum many-body systems are known to exhibit prethermal or quasi-steady-state dynamics. In this work, we theoretically show that such prethermal phases can appear in the dynamics of a dipolar two-spin-1/2 system coupled to a heat bath if the cross terms between the drive and dipolar interactions are taken into consideration. To this end, we use our recently reported fluctuation-regulated quantum master equation (Chakrabarti A. and Bhattacharyya R., Phys. Rev. A 97 (2018) 063837), to show that the predicted dynamics can successfully explain the experimentally observed features of the transient and prethermal regime.