dc.contributor.author | Hanada, M | en_US |
dc.contributor.author | Liu, J | en_US |
dc.contributor.author | Rinaldi, E | en_US |
dc.contributor.author | Tezuka, M | en_US |
dc.date.accessioned | 2024-03-13T15:46:11Z | |
dc.date.issued | 2023-12-01 | en_US |
dc.identifier.uri | https://qmro.qmul.ac.uk/xmlui/handle/123456789/95303 | |
dc.description.abstract | To simulate bosons on a qubit- or qudit-based quantum computer, one has to regularize the theory by truncating infinite-dimensional local Hilbert spaces to finite dimensions. In the search for practical quantum applications, it is important to know how big the truncation errors can be. In general, it is not easy to estimate errors unless we have a good quantum computer. In this paper, we show that traditional sampling methods on classical devices, specifically Markov Chain Monte Carlo, can address this issue for a rather generic class of bosonic systems with a reasonable amount of computational resources available today. As a demonstration, we apply this idea to the scalar field theory on a two-dimensional lattice, with a size that goes beyond what is achievable using exact diagonalization methods. This method can be used to estimate the resources needed for realistic quantum simulations of bosonic theories, and also, to check the validity of the results of the corresponding quantum simulations. | en_US |
dc.relation.ispartof | Machine Learning: Science and Technology | en_US |
dc.rights | Original content from this work may be used under the terms of the Creative Commons Attribution 4.0 license. Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI. | |
dc.title | Estimating truncation effects of quantum bosonic systems using sampling algorithms | en_US |
dc.type | Article | |
dc.rights.holder | © 2023 The Author(s). Published by IOP Publishing Ltd | |
dc.identifier.doi | 10.1088/2632-2153/ad035c | en_US |
pubs.issue | 4 | en_US |
pubs.notes | Not known | en_US |
pubs.publication-status | Published | en_US |
pubs.volume | 4 | en_US |
rioxxterms.funder | Default funder | en_US |
rioxxterms.identifier.project | Default project | en_US |