Vectorial polaritons in the quantum motion of a levitated nanosphere
- URL: http://arxiv.org/abs/2012.15265v1
- Date: Wed, 30 Dec 2020 18:26:28 GMT
- Title: Vectorial polaritons in the quantum motion of a levitated nanosphere
- Authors: A. Ranfagni, P. Vezio, M. Calamai, A. Chowdhury, F. Marino, and F.
Marin
- Abstract summary: We show the generation of phonon-polaritons in the quantum motion of an optically-levitated nanosphere.
Our results pave the way to novel protocols for quantum information transfer between photonic and phononic components.
- Score: 0.0
- License: http://creativecommons.org/licenses/by/4.0/
- Abstract: The strong coupling between elementary excitations of the electromagnetic
field (photons) and quantized mechanical vibrations (phonons) produces hybrid
quasi-particle states, known as phonon-polaritons. Their typical signature is
the avoided crossing between the eigenfrequencies of the coupled system, as
paradigmatically illustrated by the Jaynes-Cummings Hamiltonian, and observed
in quantum electrodynamics experiments where cavity photons are coupled to
atoms, ions, excitons, spin ensambles and superconducting qubits. In this work,
we demonstrate the generation of phonon-polaritons in the quantum motion of an
optically-levitated nanosphere. The particle is trapped in high vacuum by an
optical tweezer and strongly coupled to a single cavity mode by coherent
scattering of the tweezer photons. The two-dimensional motion splits into two
nearly-degenerate components that, together with the optical cavity mode,
define an optomechanical system with three degrees-of-freedom. As such, when
entering the strong coupling regime, we observe hybrid light-mechanical states
with a dispersion law typical of tripartite quantum systems. Remarkably, the
independent components of motion here identify a physical vibration direction
on a plane that, similarly to the polarization of light, confers a vectorial
nature to the polariton field. Our results pave the way to novel protocols for
quantum information transfer between photonic and phononic components and
represent a key-step towards the demonstration of optomechanical entangled
states at room temperature.
Related papers
- Nonlinear dynamical Casimir effect and Unruh entanglement in waveguide QED with parametrically modulated coupling [83.88591755871734]
We study theoretically an array of two-level qubits moving relative to a one-dimensional waveguide.
When the frequency of this motion approaches twice the qubit resonance frequency, it induces parametric generation of photons and excitation of the qubits.
We develop a comprehensive general theoretical framework that incorporates both perturbative diagrammatic techniques and a rigorous master-equation approach.
arXiv Detail & Related papers (2024-08-30T15:54:33Z) - Entangling two exciton modes using exciton optomechanics [4.561414434532408]
We propose to entangle two exciton modes in an exciton-optomechanics system.
The protocol is within reach of current technology and may become a promising approach for preparing excitonic entanglement.
arXiv Detail & Related papers (2024-02-05T04:07:20Z) - Electron-assisted manipulation of polaritonic light-matter states [0.0]
We investigate strong light-matter coupling through monochromatic and modulated electron wavepackets.
In particular, we consider an archetypal target, comprising a nanophotonic cavity next to a single two-level emitter.
We show the power of modulated electrons beams as quantum tools for the manipulation of polaritonic targets.
arXiv Detail & Related papers (2023-12-11T16:28:32Z) - Quantum vortices of strongly interacting photons [52.131490211964014]
Vortices are hallmark of nontrivial dynamics in nonlinear physics.
We report on the realization of quantum vortices resulting from a strong photon-photon interaction in a quantum nonlinear optical medium.
For three photons, the formation of vortex lines and a central vortex ring attests to a genuine three-photon interaction.
arXiv Detail & Related papers (2023-02-12T18:11:04Z) - Formation of Matter-Wave Polaritons in an Optical Lattice [0.0]
polariton is a quasiparticle formed by strong coupling of a photon to a matter excitation.
We develop an ultracold-atom analogue of an exciton-polariton system in which interacting polaritonic phases can be studied.
Our work opens up novel possibilities for studies of polaritonic quantum matter.
arXiv Detail & Related papers (2021-09-06T04:46:31Z) - Stochastic Variational Approach to Small Atoms and Molecules Coupled to
Quantum Field Modes [55.41644538483948]
We present a variational calculation (SVM) of energies and wave functions of few particle systems coupled to quantum fields in cavity QED.
Examples for a two-dimensional trion and confined electrons as well as for the He atom and the Hydrogen molecule are presented.
arXiv Detail & Related papers (2021-08-25T13:40:42Z) - Exciton-photon complexes and dynamics in the concurrent strong-weak
coupling regime of singular site-controlled cavity quantum electrodynamics [13.810406780342314]
We investigate the exciton complexes photoluminescence, dynamics and photon statistics in the concurrent strong weak coupling regime.
We demonstrate the strong and weak coupling can coexist dynamically, as a form of intermediate regime mediated by phonon scattering.
This study suggests our device has potential for new and subtle cavity quantum electrodynamical phenomena, cavity enhanced indistinguishable single photon generation, and cluster state generation via the exciton-photon complexes for quantum networks.
arXiv Detail & Related papers (2021-07-14T07:21:57Z) - 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) - 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) - Theory of waveguide-QED with moving emitters [68.8204255655161]
We study a system composed by a waveguide and a moving quantum emitter in the single excitation subspace.
We first characterize single-photon scattering off a single moving quantum emitter, showing both nonreciprocal transmission and recoil-induced reduction of the quantum emitter motional energy.
arXiv Detail & Related papers (2020-03-20T12:14:10Z) - Emergent photon pair propagation in circuit QED with superconducting
processors [0.0]
We show that for a suitable choice of the coupling ratio between different levels, the single photon propagation is suppressed and the propagation of photon pairs emerges.
This propagation of photon pairs leads to the pair superfluid of polaritons associated to the system.
arXiv Detail & Related papers (2020-02-27T19:44:48Z)
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.