Simultaneous Perturbation Stochastic Approximation of the Quantum Fisher Information
dc.contributor.author
Gacon, Julien
dc.contributor.author
Zoufal, Christa
dc.contributor.author
Carleo, Giuseppe
dc.contributor.author
Woerner, Stefan
dc.date.accessioned
2021-11-11T10:17:38Z
dc.date.available
2021-11-10T04:14:53Z
dc.date.available
2021-11-11T10:17:38Z
dc.date.issued
2021-03
dc.identifier.issn
2521-327X
dc.identifier.other
10.22331/q-2021-10-20-567
en_US
dc.identifier.uri
http://hdl.handle.net/20.500.11850/514582
dc.identifier.doi
10.3929/ethz-b-000514582
dc.description.abstract
The Quantum Fisher Information matrix (QFIM) is a central metric in promising algorithms, such as Quantum Natural Gradient Descent and Variational Quantum Imaginary Time Evolution. Computing the full QFIM for a model with d parameters, however, is computation-ally expensive and generally requires O(d(2)) function evaluations. To remedy these increasing costs in high-dimensional parameter spaces, we propose using simultaneous perturbation stochastic approximation techniques to approximate the QFIM at a constant cost. We present the resulting algorithm and successfully apply it to prepare Hamiltonian ground states and train Variational Quantum Boltzmann Machines.
en_US
dc.format
application/pdf
en_US
dc.language.iso
en
en_US
dc.publisher
Verein zur Forderung des Open Access Publizierens in den Quantenwissenschaften
en_US
dc.rights.uri
http://creativecommons.org/licenses/by/4.0/
dc.title
Simultaneous Perturbation Stochastic Approximation of the Quantum Fisher Information
en_US
dc.type
Journal Article
dc.rights.license
Creative Commons Attribution 4.0 International
ethz.journal.title
Quantum
ethz.journal.volume
5
en_US
ethz.pages.start
567
en_US
ethz.size
19 p.
en_US
ethz.version.deposit
publishedVersion
en_US
ethz.identifier.wos
ethz.publication.place
Wien
en_US
ethz.publication.status
published
en_US
ethz.leitzahl
ETH Zürich::00002 - ETH Zürich::00012 - Lehre und Forschung::00007 - Departemente::02010 - Dep. Physik / Dep. of Physics::02511 - Institut für Theoretische Physik / Institute for Theoretical Physics::03781 - Renner, Renato / Renner, Renato
ethz.leitzahl.certified
ETH Zürich::00002 - ETH Zürich::00012 - Lehre und Forschung::00007 - Departemente::02010 - Dep. Physik / Dep. of Physics::02511 - Institut für Theoretische Physik / Institute for Theoretical Physics::03781 - Renner, Renato / Renner, Renato
ethz.relation.isNewVersionOf
handle/20.500.11850/526534
ethz.date.deposited
2021-11-10T04:20:57Z
ethz.source
WOS
ethz.eth
yes
en_US
ethz.availability
Open access
en_US
ethz.rosetta.installDate
2021-11-11T10:17:50Z
ethz.rosetta.lastUpdated
2023-02-06T23:19:21Z
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true
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