Dynamically enhancing qubit-oscillator interactions with anti-squeezing - Inria - Institut national de recherche en sciences et technologies du numérique Accéder directement au contenu
Pré-Publication, Document De Travail Année : 2023

Dynamically enhancing qubit-oscillator interactions with anti-squeezing

Résumé

The interaction strength of an oscillator to a qubit grows with the oscillator's vacuum field fluctuations. The well known degenerate parametric oscillator has revived interest in the regime of strongly detuned squeezing, where its eigenstates are squeezed Fock states. Owing to these amplified field fluctuations, it was recently proposed that squeezing this oscillator would dynamically boost its coupling to a qubit. In a superconducting circuit experiment, we observe a two-fold increase in the dispersive interaction between a qubit and an oscillator at 5.5 dB of squeezing, demonstrating in-situ dynamical control of qubit-oscillator interactions. This work initiates the experimental coupling of oscillators of squeezed photons to qubits, and cautiously motivates their dissemination in experimental platforms seeking enhanced interactions.

Dates et versions

hal-03918303 , version 1 (02-01-2023)

Identifiants

Citer

Marius Villiers, W. Clarke Smith, Alexandru Petrescu, Alvise Borgognoni, Matthieu Delbecq, et al.. Dynamically enhancing qubit-oscillator interactions with anti-squeezing. 2023. ⟨hal-03918303⟩
39 Consultations
0 Téléchargements

Altmetric

Partager

Gmail Facebook X LinkedIn More