Gate-Based Quantum Simulation of Gaussian Bosonic Circuits on Exponentially Many Modes

We introduce a framework for simulating, on an ( n + 1 )-qubit quantum computer, the action of a Gaussian bosonic (GB) circuit on a state over 2 n modes. Specifically, we encode the initial bosonic state’s expectation values over quadrature operators (and their covariance matrix) as an input qubit s...

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Bibliographic Details

Published in:	Physical review letters Vol. 134; no. 7; p. 070604
Main Authors:	Barthe, Alice, Cerezo, M., Sornborger, Andrew T., Larocca, Martín, García-Martín, Diego
Format:	Journal Article
Language:	English
Published:	United States American Physical Society (APS) 21.02.2025
Subjects:	bosonic systems BQP-complete computational complexity exponential advantage quantum algorithms & computation quantum circuits quantum harmonic oscillator quantum simulations
ISSN:	0031-9007, 1079-7114, 1079-7114
Online Access:	Get full text
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