Squeezing for Broadband Multidimensional Variational Measurement
- URL: http://arxiv.org/abs/2310.04522v1
- Date: Fri, 6 Oct 2023 18:41:29 GMT
- Title: Squeezing for Broadband Multidimensional Variational Measurement
- Authors: Aleksandr A. Movsisian, Sergey P. Vyatchanin
- Abstract summary: We show that optical losses inside cavity restrict back action exclusion due to loss noise.
We analyze how two-photon (nondegenerate) and conventional (degenerate) squeezing improve sensitivity with account optical losses.
- Score: 55.2480439325792
- License: http://creativecommons.org/licenses/by-nc-nd/4.0/
- Abstract: Broadband multidimensional variational measurement allows to overcome
Standard Quantum Limit (SQL) of a classical mechanical force detection,
resulting from quantum back action, which perturbs evolution of a mechanical
oscillator. In this optomechanic scheme detection of a resonant signal force
acting on a linear mechanical oscillator coupled to a system with three optical
modes with separation nearly equal to the mechanical frequency. The measurement
is performed by optical pumping of the central optical mode and measuring the
light escaping the two other modes. Detection of optimal quadrature components
of the optical modes and post processing result in the back action exclusion in
a broad frequency band and surpassing SQL. We show that optical losses inside
cavity restrict back action exclusion due to loss noise. We also analyze how
two-photon (nondegenerate) and conventional (degenerate) squeezing improve
sensitivity with account optical losses, considering mainly internal squeezing.
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) - Broadband Multidimensional Variational Measurement with Non-Symmetric Coupling [41.94295877935867]
We analyze a general case of the non-symmetric measurement scheme, in which the coupling strengths with the light modes are not equal to each other.
We found that the back action can be completely excluded from the measurement result in the case of the asymmetric system.
arXiv Detail & Related papers (2024-07-30T11:12:13Z) - Dissipative and dispersive cavity optomechanics with a
frequency-dependent mirror [0.0]
microcavity-based optomechanical systems are placed in the unresolved-sideband regime, preventing sideband-based ground-state cooling.
We analyze such an optomechanical system, whereby one of the mirrors is strongly frequency-dependent, i.e., a suspended Fano mirror.
We formulate a quantum-coupled-mode description that includes both the standard dispersive optomechanical coupling as well as dissipative coupling.
arXiv Detail & Related papers (2023-11-26T14:20:25Z) - Dissipative Optomechanics in High-Frequency Nanomechanical Resonators [0.0]
We show the first dissipative optomechanical system operating in the sideband-resolved regime, where the mechanical frequency is larger than the optical linewidth.
Our figures represent a two-order-of-magnitude leap in the mechanical frequency and a tenfold increase in the dissipative optomechanical coupling rate compared to previous works.
arXiv Detail & Related papers (2022-12-30T03:16:31Z) - Broadband Coherent Multidimensional Variational Measurement [0.0]
We show that usage of a multidimensional optical transducer may enable a broadband quantum back action evading measurement.
We discuss how proposed scheme relates to multidimensional system containing quantum-free subsystems.
arXiv Detail & Related papers (2022-05-07T19:52:25Z) - Ultra-long photonic quantum walks via spin-orbit metasurfaces [52.77024349608834]
We report ultra-long photonic quantum walks across several hundred optical modes, obtained by propagating a light beam through very few closely-stacked liquid-crystal metasurfaces.
With this setup we engineer quantum walks up to 320 discrete steps, far beyond state-of-the-art experiments.
arXiv Detail & Related papers (2022-03-28T19:37:08Z) - Superradiance in dynamically modulated Tavis-Cumming model with spectral
disorder [62.997667081978825]
Superradiance is the enhanced emission of photons from quantum emitters collectively coupling to the same optical mode.
We study the interplay between superradiance and spectral disorder in a dynamically modulated Tavis-Cummings model.
arXiv Detail & Related papers (2021-08-18T21:29:32Z) - Localized vibrational modes in waveguide quantum optomechanics with
spontaneously broken PT symmetry [117.44028458220427]
We study theoretically two vibrating quantum emitters trapped near a one-dimensional waveguide and interacting with propagating photons.
In the regime of strong optomechanical interaction the light-induced coupling of emitter vibrations can lead to formation of spatially localized vibration modes, exhibiting parity-time symmetry breaking.
arXiv Detail & Related papers (2021-06-29T12:45:44Z) - Broadband Dichromatic Variational Measurement [0.0]
We introduce a technique of continuous vybroadband back action avoiding measurements.
The method involves a dichromatic optical probe resonant with the MSI modes.
We show that analyzing each of the harmonics of the probe reflected from the mechanical system separately and postprocessing the measurement results allows excluding the back action in a broad frequency band.
arXiv Detail & Related papers (2021-05-06T09:04:35Z)
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.