Quantum Simulation of Generic Many-Body Open System Dynamics Using Classical Noise
Name
PhysRevLett.118.140403.pdf
Size
226.14 KB
Format
Adobe PDF
Checksum (MD5)
8a0ca00a6acb599036298be8ff3f39cc
Author(s)
Beau, M.
del Campo, A.
Chenu, Aurelia
Cao, Jianshu
Date Issued
April 2017
Journal
Physical Review Letters
Publisher
American Physical Society
Citation
Chenu, A. et al. “Quantum Simulation of Generic Many-Body Open System Dynamics Using Classical Noise.” Physical Review Letters 118.14 (2017): n. pag. © 2017 American Physical Society
Version
Final published version
Abstract
We introduce a scheme for the quantum simulation of many-body decoherence based on the unitary evolution of a stochastic Hamiltonian. Modulating the strength of the interactions with stochastic processes, we show that the noise-averaged density matrix simulates an effectively open dynamics governed by k-body Lindblad operators. Markovian dynamics can be accessed with white-noise fluctuations; non-Markovian dynamics requires colored noise. The time scale governing the fidelity decay under many-body decoherence is shown to scale as N[superscript -2k] with the system size N. Our proposal can be readily implemented in a variety of quantum platforms including optical lattices, superconducting circuits, and trapped ions.
MIT Department
Massachusetts Institute of Technology. Department of Chemistry
Terms of Use
Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use.
Persistent DSpace Link
DOI of Published Version
https://doi.org/10.1103/PhysRevLett.118.140403
