PIRSA:23050090

Quantum thermal state preparation

Chen, C. (2023). Quantum thermal state preparation. Perimeter Institute. https://pirsa.org/23050090

Chen, Chi-Fang. Quantum thermal state preparation. Perimeter Institute, May. 10, 2023, https://pirsa.org/23050090 

          @misc{ pirsa_PIRSA:23050090,
            doi = {10.48660/23050090},
            url = {https://pirsa.org/23050090},
            author = {Chen, Chi-Fang},
            keywords = {Quantum Information},
            language = {en},
            title = {Quantum thermal state preparation},
            publisher = {Perimeter Institute},
            year = {2023},
            month = {may},
            note = {PIRSA:23050090 see, \url{https://pirsa.org}}
          }

Chi-Fang Chen California Institute of Technology (Caltech)

DOI 10.48660/23050090
Collection
Talk Type Scientific Series
Subject

Abstract

A key subroutine in quantum computing, especially in quantum simulation, is to prepare thermal states or ground states of Hamiltonians. Today, I will talk about a new family of quantum algorithms for this task. Physically, our algorithms distill the essence of system-bath interaction by simulating an effective Lindbladian; computationally, our algorithms are quantum analogs of classical Markov chain Monte Carlo sampling. Given the ubiquity of thermodynamics and the triumph of classical Monte Carlo methods, we anticipate that quantum thermal state preparation will become indispensable in quantum computing. 

Joint work with Michael J. Kastoryano, Fernando G.S.L. Brandão, and András Gilyén. https://arxiv.org/abs/2303.18224 

Zoom Link: https://pitp.zoom.us/j/91641127738?pwd=cExPM3Bvd3BaYnJYS0U0UlBiVTJ0QT09