Implementation of weak measurement amplification with the weak coherent light and optomechanical system
arXiv:2104.03561 · doi:10.1088/1361-6455/ac09c2
Abstract
Most studies for postselected weak measurement in optomechanical system focus on using a single photon as a measured system. However, we find that using weak coherent light instead of a single photon can also amplify the mirror's position displacement of one photon. In the WVA regime (Weak Value Amplification regime), the weak value of one photon can lie outside the eigenvalue spectrum, proportional to the difference of the mirror's position displacement between the successful and failed postselection and its successful postselection probability is dependent of the mean photon number of the coherent light and improved by adjusting it accordingly. Outside the WVA regime, the amplification limit can reach the level of the vacuum fluctuations, and when the mean photon number and the optomechanical coupling parameter are selected appropriately, its successful postselection probability becomes higher, which is beneficial to observe the maximum amplification value under the current experimental conditions. This result breaks the constraint that it is difficult to detect outside the WVA regime. This opens up a new regime for the study of a single photon nonlinearity in optomechanical system.
arXiv comment9 pages
References in corpus (26)
- Cavity Optomechanics
- Towards quantum superpositions of a mirror
- Ultrasensitive Beam Deflection Measurement via Interferometric Weak Value Amplification
- Direct Measurement of the Quantum Wavefunction
- Preparation of Nonclassical States in Cavities with a Moving Mirror
- Measuring small longitudinal phase shifts: weak measurements or standard interferometry?
- Experimental joint weak measurement on a photon pair as a probe of Hardy's Paradox
- Complex weak values in quantum measurement
- Back-action evasion and squeezing of a mechanical resonator using a cavity detector
- Ponderomotive Control of Quantum Macroscopic Coherence
- Revisiting Hardy's Paradox: Counterfactual Statements, Real Measurements, Entanglement and Weak Values
- Pulsed quantum optomechanics
- Amplifying Single-Photon Nonlinearity Using Weak Measurement
- Amplification of Angular Rotations Using Weak Measurements
- Experimental Realization of the Quantum Box Problem
- Quantum Cheshire Cats
- Observation of a quantum Cheshire Cat in a matter wave interferometer experiment
- Optomechanical superpositions via nested interferometry
- Observation of the Nonlinear Phase Shift Due to Single Post-Selected Photons
- Quantum advantages in classically defined tasks
- The Three-Box Paradox Revisited
- Amplification effects in optomechanics via weak measurement
- Weak value amplification of photon number operators in the optomechanical interaction
- The classical limit of quantum optics: not what it seems at first sight
- Weak measurement amplification in optomechanics via a squeezed coherent state pointer
- Weak measurement combined with quantum delayed-choice experiment and implementation in optomechanical system