Heralded quantum non-Gaussian states in pulsed levitating optomechanics

• URL: http://arxiv.org/abs/2511.16242v1
• Date: Thu, 20 Nov 2025 11:20:10 GMT
• Title: Heralded quantum non-Gaussian states in pulsed levitating optomechanics
• Authors: F. Bemani, A. A. Rakhubovsky, R. Filip,
• Abstract summary: We explore pulsed optomechanical interactions combined with non-linear photon detection techniques to approach mechanical Fock states.<n>We also predict the conditions under which the optomechanical interaction can induce multiple-phonon addition processes.<n>The practical applicability of quantum non-Gaussian states for sensing phase-randomized displacements is shown.
• Score: 0.0
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: Optomechanics with levitated nanoparticles is a promising way to combine very different types of quantum non-Gaussian aspects induced by continuous dynamics in a nonlinear or time-varying potential with the ones coming from discrete quantum elements in dynamics or measurement. First, it is necessary to prepare quantum non-Gaussian states using both methods. The nonlinear and time-varying potentials have been widely analyzed for this purpose. However, feasible preparation of provably quantum non-Gaussian states in a single mechanical mode using discrete photon detection has not been proposed yet for optical levitation. We explore pulsed optomechanical interactions combined with non-linear photon detection techniques to approach mechanical Fock states and confirm their quantum non-Gaussianity. We also predict the conditions under which the optomechanical interaction can induce multiple-phonon addition processes, which are relevant for $n$-phonon quantum non-Gaussianity. The practical applicability of quantum non-Gaussian states for sensing phase-randomized displacements is shown. Besides such applications, generating quantum non-Gaussian states of levitated nanoparticles can help to study fundamental questions of quantum thermodynamics, and macroscopic quantum effects.

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