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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.
|Title of host publication||MIPT (PHYSTECH) - QUANT 2020|
|Editors||Gordey Lesovik, Valeril Vinokur, Mikhail Perelshtein|
|Publisher||American Institute of Physics|
|Number of pages||5|
|Publication status||Published - 16 Jun 2021|
|MoE publication type||A4 Article in a conference publication|
|Event||International Conference on Quantum Technologies - Virtual, Online, Moscow, Russian Federation|
Duration: 7 Sep 2020 → 11 Sep 2020
|Name||AIP Conference Proceedings|
|Conference||International Conference on Quantum Technologies|
|Period||07/09/2020 → 11/09/2020|
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01/01/2018 → 31/12/2020
Project: Academy of Finland: Other research funding