Ponderomotive squeezing of light by a levitated nanoparticle in free space
arXiv:2202.09063 · doi:10.1103/PhysRevLett.129.053602
Abstract
A mechanically compliant element can be set into motion by the interaction with light. In turn, this light-driven motion can give rise to ponderomotive correlations in the electromagnetic field. In optomechanical systems, cavities are often employed to enhance these correlations up to the point where they generate quantum squeezing of light. In free-space scenarios, where no cavity is used, observation of squeezing remains possible but challenging due to the weakness of the interaction, and has not been reported so far. Here, we measure the ponderomotively squeezed state of light scattered by a nanoparticle levitated in a free-space optical tweezer. We observe a reduction of the optical fluctuations by up to ~\% below the vacuum level, in a bandwidth of about ~kHz. Our results are well explained by a linearized dipole interaction between the nanoparticle and the electromagnetic continuum. These ponderomotive correlations open the door to quantum-enhanced sensing and metrology with levitated systems, such as force measurements below the standard quantum limit.
References in corpus (40)
- scikit-image: Image processing in Python
- Cavity Optomechanics
- Circuit Quantum Electrodynamics
- Introduction to Quantum Noise, Measurement and Amplification
- Continuous-variable optical quantum state tomography
- Quantum state reconstruction of the single-photon Fock state
- Cavity optomechanics using an optically levitated nanosphere
- A Straightforward Introduction to Continuous Quantum Measurement
- Phase noise measurement in a cavity with a movable mirror undergoing quantum Brownian motion
- Strongly interacting photons in one-dimensional continuum
- Strong Optomechanical Squeezing of Light
- Levitodynamics: Levitation and control of microscopic objects in vacuum
- Real-time optimal quantum control of mechanical motion at room temperature
- Direct Measurement of Photon Recoil from a Levitated Nanoparticle
- Quantum control of a nanoparticle optically levitated in cryogenic free space
- Detecting high-frequency gravitational waves with optically-levitated sensors
- Optically Levitating Dielectrics in the Quantum Regime: Theory and Protocols
- Continuous Force and Displacement Measurement Below the Standard Quantum Limit
- Cold Damping of an Optically Levitated Nanoparticle to micro-Kelvin Temperatures
- Sensing of Static Forces with Free-Falling Nanoparticles
- Motional Sideband Asymmetry of a Nanoparticle Optically Levitated in Free Space
- Searching for new physics using optically levitated sensors
- Mechanical Quantum Sensing in the Search for Dark Matter
- Controlling the net charge on a nanoparticle optically levitated in vacuum
- Optically levitated nanoparticle as a model system for stochastic bistable dynamics
- Experimental test of the differential fluctuation theorem and a generalized Jarzynski equality for arbitrary initial states
- Bulk crystalline optomechanics
- Entanglement of Propagating Optical Modes via a Mechanical Interface
- Optimal Position Detection of a Dipolar Scatterer in a Focused Field
- Theory for Cavity Cooling of Levitated Nanoparticles via Coherent Scattering: Master Equation Approach
- Quantum Model of Cooling and Force Sensing With an Optically Trapped Nanoparticle
- Appearance and disappearance of quantum correlations in measurement-based feedback control of a mechanical oscillator
- Two-Color Pump-Probe Measurement of Photonic Quantum Correlations Mediated by a Single Phonon
- Master equation approach to optomechanics with arbitrary dielectrics
- Observability of radiation pressure shot noise in optomechanical systems
- Optomechanical cooling in a continuous system
- Squeezed light from a levitated nanoparticle at room temperature
- Entanglement and squeezing of continuous-wave stationary light
- Toward Quantum-Limited Position Measurements Using Optically Levitated Microspheres
- Radiation Damping of a Polarizable Particle
Cited by in corpus (6)
- Squeezed light from a levitated nanoparticle at room temperature
- Suppressing Recoil Heating in Levitated Optomechanics using Squeezed Light
- Multi-step two-copy distillation of squeezed states via two photon subtraction
- Semi-classical gravity phenomenology under the causal-conditional quantum measurement prescription
- Steady motional entanglement between two distant levitated nanoparticles
- Bayesian optimization of non-classical optomechanical correlations