Quantum thermal state preparation


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


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


          @misc{ scivideos_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 for Theoretical Physics},
            year = {2023},
            month = {may},
            note = {PIRSA:23050090 see, \url{https://scivideos.org/pirsa/23050090}}

Chi-Fang Chen California Institute of Technology (Caltech)

Source Repository PIRSA


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