Interacting lattice systems with quantum dissipation: a quantum Monte Carlo study
Abstract
Quantum dissipation arises when a large system can be split in a quantum system and an environment where the energy of the former flows to. Understanding the effect of dissipation on quantum many-body systems is of particular importance due to its potential relations with quantum information processing. We propose a conceptually simple approach to introduce the dissipation into interacting quantum systems in a thermodynamical context, in which every site of a 1d lattice is coupled off-diagonally to its own bath. The interplay between quantum dissipation and interactions gives rise to counterintuitive interpretations such as a compressible zero-temperature state with spontaneous discrete symmetry breaking and a thermal phase transition in a one-dimensional dissipative quantum many-body system as revealed by Quantum Monte Carlo path integral simulations.
Cite
@article{arxiv.1704.00606,
title = {Interacting lattice systems with quantum dissipation: a quantum Monte Carlo study},
author = {Zheng Yan and L. Pollet and Jie Lou and Xiaoqun Wang and Yan Chen and Zi Cai},
journal= {arXiv preprint arXiv:1704.00606},
year = {2024}
}