Optical-force-mediated coupling between levitated nanospheres can go ultrastrong

• URL: http://arxiv.org/abs/2203.10126v2
• Date: Tue, 29 Mar 2022 07:54:08 GMT
• Title: Optical-force-mediated coupling between levitated nanospheres can go ultrastrong
• Authors: Daniele De Bernardis, Gianluca Rastelli, Iacopo Carusotto, Valerio Scarani
• Abstract summary: We investigate the effect of optical-force-mediated interactions onto the quantum dynamics of a pair of nanospheres optically trapped in two neighboring optical tweezers. Thanks to the interference between the tweezer beams and the elastically scattered light by the other nanosphere, the effective inter nanosphere coupling can reach the ultrastrong coupling regime.
• Score: 0.0
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: We theoretically investigate the effect of optical-force-mediated interactions onto the quantum dynamics of a pair of dielectric nanospheres optically trapped in two neighboring optical tweezers. Thanks to the interference between the tweezer beams and the elastically scattered light by the other nanosphere, the effective inter nanosphere coupling can reach the ultrastrong coupling regime. Experimentally accessible signatures of the entangled nature of the quantum ground state are highlighted, including entanglement witnesses based on position/momentum correlation functions and a sizable dynamical Casimir excitation upon a fast modulation of the tweezer's properties.

Related papers

• Coupler enabled tunable dipole-dipole coupling between optically levitated nanoparticles [16.27312133509692]
  We introduce a third nanoparticles as a coupler to two initially non-interacting nanoparticles, achieving tunable dipole-dipole coupling mediated by the third one. Our method allows for precise control of interactions between any pair of adjacent particles in multi-particle systems.
  arXiv  Detail & Related papers  (2024-08-12T16:11:49Z)
• Coulomb coupling between two nanospheres trapped in a bichromatic optical tweezer [0.037008493040610595]
  We demonstrate the trapping of two nanospheres inside a dual optical tweezer generated by two copropagating lasers operating at different wavelengths. Results highlight the potential of our experimental scheme for future studies on systems of strongly coupled oscillators.
  arXiv  Detail & Related papers  (2024-08-05T16:15:01Z)
• Plasmon mediated coherent population oscillations in molecular aggregates [2.2723634099641004]
  coherent coupling of quantum emitters to vacuum fluctuations of the light field offers opportunities for manipulating the optical and transport properties of nanomaterials. Here, we use ultrafast two-dimensional electronic spectroscopy to probe the quantum dynamics of J-aggregate excitons collectively coupled to the spatially structured plasmonic fields of a gold nanoslit array.
  arXiv  Detail & Related papers  (2023-07-27T08:57:46Z)
• Probing the symmetry breaking of a light--matter system by an ancillary qubit [50.591267188664666]
  Hybrid quantum systems in the ultrastrong, and even more in the deep-strong, coupling regimes can exhibit exotic physical phenomena. We experimentally observe the parity symmetry breaking of an ancillary Xmon artificial atom induced by the field of a lumped-element superconducting resonator. This result opens a way to experimentally explore the novel quantum-vacuum effects emerging in the deep-strong coupling regime.
  arXiv  Detail & Related papers  (2022-09-13T06:14:08Z)
• Tunable photon-mediated interactions between spin-1 systems [68.8204255655161]
  We show how to harness multi-level emitters with several optical transitions to engineer photon-mediated interactions between effective spin-1 systems. Our results expand the quantum simulation toolbox available in cavity QED and quantum nanophotonic setups.
  arXiv  Detail & Related papers  (2022-06-03T14:52:34Z)
• Tuning long-range fermion-mediated interactions in cold-atom quantum simulators [68.8204255655161]
  Engineering long-range interactions in cold-atom quantum simulators can lead to exotic quantum many-body behavior. Here, we propose several tuning knobs, accessible in current experimental platforms, that allow to further control the range and shape of the mediated interactions.
  arXiv  Detail & Related papers  (2022-03-31T13:32:12Z)
• Observation of strong and tunable light-induced dipole-dipole interactions between optically levitated nanoparticles [0.0]
  We show a new coupling mechanism that is orders of magnitude stronger and has new qualitative features. Our results pave the way for a fully programmable many-body system of interacting nanoparticles with tunable dissipative and nonreciprocal interactions.
  arXiv  Detail & Related papers  (2022-03-08T16:53:21Z)
• Enhanced Cavity Optomechanics with Quantum-well Exciton Polaritons [0.0]
  microresonators embed quantum wells can host excitonic, optical and mechanical modes at once. We investigate the case where the system operates in the strong exciton-photon coupling regime. We predict an enhancement of polariton-phonon interactions by two orders of magnitude with respect to mere optomechanical coupling.
  arXiv  Detail & Related papers  (2022-02-24T13:26:19Z)
• Molecular Interactions Induced by a Static Electric Field in Quantum Mechanics and Quantum Electrodynamics [68.98428372162448]
  We study the interaction between two neutral atoms or molecules subject to a uniform static electric field. Our focus is to understand the interplay between leading contributions to field-induced electrostatics/polarization and dispersion interactions.
  arXiv  Detail & Related papers  (2021-03-30T14:45:30Z)
• Waveguide quantum electrodynamics: collective radiance and photon-photon correlations [151.77380156599398]
  Quantum electrodynamics deals with the interaction of photons propagating in a waveguide with localized quantum emitters. We focus on guided photons and ordered arrays, leading to super- and sub-radiant states, bound photon states and quantum correlations with promising quantum information applications.
  arXiv  Detail & Related papers  (2021-03-11T17:49:52Z)
• Hyperentanglement in structured quantum light [50.591267188664666]
  Entanglement in high-dimensional quantum systems, where one or more degrees of freedom of light are involved, offers increased information capacities and enables new quantum protocols. Here, we demonstrate a functional source of high-dimensional, noise-resilient hyperentangled states encoded in time-frequency and vector-vortex structured modes. We generate highly entangled photon pairs at telecom wavelength that we characterise via two-photon interference and quantum state tomography, achieving near-unity visibilities and fidelities.
  arXiv  Detail & Related papers  (2020-06-02T18:00:04Z)

This list is automatically generated from the titles and abstracts of the papers in this site.

This site does not guarantee the quality of this site (including all information) and is not responsible for any consequences.