Measurement of motion beyond the quantum limit by transient amplification
arXiv:1903.02151 · doi:10.1103/PhysRevLett.123.183603
Abstract
Through simultaneous but unequal electromechanical amplification and cooling processes, we create a method for nearly noiseless pulsed measurement of mechanical motion. We use transient electromechanical amplification (TEA) to monitor a single motional quadrature with a total added noise dB relative to the zero-point motion of the oscillator, or equivalently the quantum limit for simultaneous measurement of both mechanical quadratures. We demonstrate that TEA can be used to resolve fine structure in the phase-space of a mechanical oscillator by tomographically reconstructing the density matrix of a squeezed state of motion. Without any inference or subtraction of noise, we directly observe a squeezed variance dB below the oscillator's zero-point motion.
arXiv comment6 page main text, 13 page supplement, accepted version
References in corpus (25)
- Cavity Optomechanics
- Sideband Cooling Micromechanical Motion to the Quantum Ground State
- Introduction to Quantum Noise, Measurement and Amplification
- Continuous-variable optical quantum state tomography
- Quantum squeezing of motion in a mechanical resonator
- Quantum state reconstruction of the single-photon Fock state
- Remote quantum entanglement between two micromechanical oscillators
- Entangled massive mechanical oscillators
- Quantum state estimation
- State Transfer Between a Mechanical Oscillator and Microwave Fields in the Quantum Regime
- Measurement-based quantum control of mechanical motion
- Squeezing of quantum noise of motion in a micromechanical resonator
- Back-action evasion and squeezing of a mechanical resonator using a cavity detector
- Creation and control of multi-phonon Fock states in a bulk acoustic wave resonator
- Quantum nondemolition measurement of a nonclassical state of a massive object
- Arbitrarily large steady-state bosonic squeezing via dissipation
- Harnessing electro-optic correlations in an efficient mechanical converter
- Reliable Quantum State Tomography
- Quantum state tomography of an itinerant squeezed microwave field
- Cavity quantum acoustic device in the multimode strong coupling regime
- Parametric generation of quadrature squeezing of mirrors in cavity optomechanics
- Quantum nondemolition measurement of mechanical squeezed state beyond the 3 dB limit
- Faithful conversion of propagating quantum information to mechanical motion
- Quantum-enabled temporal and spectral mode conversion of microwave signals
- An effective method to estimate multidimensional Gaussian states
Cited by in corpus (14)
- Direct observation of deterministic macroscopic entanglement
- Quantum-enhanced sensing of displacements and electric fields with large trapped-ion crystals
- A perspective on hybrid quantum opto- and electromechanical systems
- Ground State Cooling of an Ultracoherent Electromechanical System
- A squeezed mechanical oscillator with milli-second quantum decoherence
- Nonlinear Sideband Cooling to a Cat State of Motion
- Quadrature squeezing enhances Wigner negativity in a mechanical Duffing oscillator
- Quantum metrology with a continuous-variable system
- Squeezed superradiance enables robust entanglement-enhanced metrology even with highly imperfect readout
- Combining Floquet and Lyapunov techniques for time-dependent problems in optomechanics and electromechanics
- Nonclassical mechanical states in cavity optomechanics in the single-photon strong-coupling regime
- Optomechanics for quantum technologies
- Optimal Displacement Sensing with Spin-Dependent Squeezed States
- Strongly driven cavity quantum electrodynamical-optomechanical hybrid system