Vacuum-induced correlations in superconducting microwave cavity under multiple pump tones

T. Korkalainen, I. Lilja, M. R. Perelshtein*, K. V. Petrovnin, G. S. Paraoanu, P. J. Hakonen

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review


Quantum correlations are an essential resource in advanced information processing based on quantum phenomena. Remarkably, the vacuum state of a quantum field may act as a key element for generation of strong quantum correlations. Besides, superconducting microwave cavities offer an excellent platform for experimental studies of such quantum effects. In this work, we numerically investigate vacuum correlations in a flux-tunable superconducting cavity under multiple pump tones. We consider double and triple pumping cases and explore pairwise correlations between three frequency bands specified within a single cavity resonance. Our work shows that three pumps produce more correlations than two pumps; thus, quantum resources facilitated by the triple pump scheme offers enhanced prospects for quantum data processing using parametric microwave cavities.

Original languageEnglish
Title of host publicationMIPT (PHYSTECH) - QUANT 2020
EditorsGordey Lesovik, Valeril Vinokur, Mikhail Perelshtein
PublisherAmerican Institute of Physics
Number of pages5
ISBN (Electronic)9780735441026
Publication statusPublished - 16 Jun 2021
MoE publication typeA4 Article in a conference publication
EventInternational Conference on Quantum Technologies - Virtual, Online, Moscow, Russian Federation
Duration: 7 Sep 202011 Sep 2020

Publication series

NameAIP Conference Proceedings
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616


ConferenceInternational Conference on Quantum Technologies
Country/TerritoryRussian Federation


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