Quantum Simulation of Generic Many-Body Open System Dynamics Using Classical Noise
Author(s)
Beau, M.; del Campo, A.; Chenu, Aurelia; Cao, Jianshu
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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.
Date issued
2017-04Department
Massachusetts Institute of Technology. Department of ChemistryJournal
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
ISSN
0031-9007
1079-7114