Mechanical Squeezing in Quadratically-coupled Optomechanical Systems
- URL: http://arxiv.org/abs/2210.00510v1
- Date: Sun, 2 Oct 2022 13:13:37 GMT
- Title: Mechanical Squeezing in Quadratically-coupled Optomechanical Systems
- Authors: Priyankar Banerjee, Sampreet Kalita, and Amarendra K. Sarma
- Abstract summary: We demonstrate the generation of a strong mechanical squeezing in a dissipative optomechanical system.
Even for a thermal occupancy of 104 phonons, mechanical squeezing beyond 3 dB and a strong optomechanical entanglement is observed.
- Score: 0.0
- License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
- Abstract: We demonstrate the generation of a strong mechanical squeezing in a
dissipative optomechanical system by introducing a periodic modulation in the
amplitude of a single-tone laser driving the system. The mechanical oscillator
is quadratically coupled to the optical mode, which contributes to a strong
squeezing exceeding the 3-dB standard quantum limit. The Bogoliubov mode of the
mechanical oscillator also cools down to its ground state due to sideband
cooling. We further optimize this ratio of sideband strengths to introduce
enhanced squeezing. We also compare our results with the analytical (under
adiabatic approximation) and the exact numerical solution. Even for a thermal
occupancy of 10^4 phonons, mechanical squeezing beyond 3 dB and a strong
optomechanical entanglement is observed.
Related papers
- Two-Level System Nanomechanics in the Blue-Detuned Regime [0.0]
We study a mechanical oscillator coupled to a two-level system driven by a blue-detuned coherent source in the resolved sideband regime.
For weak mechanical damping, we find dynamical instabilities leading to limit cycles.
We discuss the relation with cavity optomechanical systems.
arXiv Detail & Related papers (2024-07-25T10:11:44Z) - Strong coupling at room temperature with a centimeter-scale quartz crystal [0.0]
We report an optomechanical system with independent control over pumping power and frequency detuning to achieve and characterize the strong-coupling regime of a bulk acoustic-wave resonator.
Our results provide valuable insights into the performances of room-temperature macroscopic mechanical systems and their applications in hybrid quantum devices.
arXiv Detail & Related papers (2024-05-28T12:15:05Z) - Optimized mechanical quadrature squeezing beyond the 3 dB limit via gradient-descent algorithm [3.182901197671368]
We propose a reliable scheme for generating mechanical quadrature squeezing in a typical cavity optomechanical system.
We realize strong quadrature squeezing in a mechanical resonator that exceeds the 3 dB steady-state limit.
This work will promote the application of optimal quantum control in quantum optics and quantum information science.
arXiv Detail & Related papers (2024-04-21T07:22:09Z) - Squeezing for Broadband Multidimensional Variational Measurement [55.2480439325792]
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.
arXiv Detail & Related papers (2023-10-06T18:41:29Z) - Unconditional Wigner-negative mechanical entanglement with
linear-and-quadratic optomechanical interactions [62.997667081978825]
We propose two schemes for generating Wigner-negative entangled states unconditionally in mechanical resonators.
We show analytically that both schemes stabilize a Wigner-negative entangled state that combines the entanglement of a two-mode squeezed vacuum with a cubic nonlinearity.
We then perform extensive numerical simulations to test the robustness of Wigner-negative entanglement attained by approximate CPE states stabilized in the presence of thermal decoherence.
arXiv Detail & Related papers (2023-02-07T19:00:08Z) - Phononically shielded photonic-crystal mirror membranes for cavity
quantum optomechanics [48.7576911714538]
We present a highly reflective, sub-wavelength-thick membrane resonator featuring high mechanical quality factor.
We construct a Fabry-Perot-type optical cavity, with the membrane forming one terminating mirror.
We demonstrate optomechanical sideband cooling to mK-mode temperatures, starting from room temperature.
arXiv Detail & Related papers (2022-12-23T04:53:04Z) - Quantum vibrational mode in a cavity confining a massless spinor field [91.3755431537592]
We analyse the reaction of a massless (1+1)-dimensional spinor field to the harmonic motion of one cavity wall.
We demonstrate that the system is able to convert bosons into fermion pairs at the lowest perturbative order.
arXiv Detail & Related papers (2022-09-12T08:21:12Z) - Open-cavity in closed-cycle cryostat as a quantum optics platform [47.50219326456544]
We present a fiber-based open Fabry-P'erot cavity in a closed-cycle cryostat exhibiting ultra-high mechanical stability.
This set of results manifests open-cavity in a closed-cycle cryostat as a versatile and powerful platform for low-temperature cavity QED experiments.
arXiv Detail & Related papers (2021-03-09T18:41:48Z) - Waveguide quantum optomechanics: parity-time phase transitions in
ultrastrong coupling regime [125.99533416395765]
We show that the simplest set-up of two qubits, harmonically trapped over an optical waveguide, enables the ultrastrong coupling regime of the quantum optomechanical interaction.
The combination of the inherent open nature of the system and the strong optomechanical coupling leads to emerging parity-time (PT) symmetry.
The $mathcalPT$ phase transition drives long-living subradiant states, observable in the state-of-the-art waveguide QED setups.
arXiv Detail & Related papers (2020-07-04T11:02:20Z) - Strong mechanical squeezing in a standard optomechanical system by pump
modulation [0.4893345190925178]
We propose a simple yet surprisingly effective mechanical squeezing scheme in a standard optomechanical system.
By merely introducing a specific kind of periodic modulation into the single-tone driving field to cool down the mechanical Bogoliubov mode, the far beyond 3-dB strong mechanical squeezing can be engineered.
arXiv Detail & Related papers (2020-06-19T05:00:39Z) - Large mechanical squeezing beyond 3dB of hybrid atom-optomechanical
systems in highly unresolved sideband regime [1.3564037908388413]
We propose a scheme for the generation of strong mechanical squeezing beyond 3dB in hybrid atom-optomechanical systems.
Our scheme paves the way toward the implementation of strong mechanical squeezing beyond 3dB in hybrid atom-optomechanical systems in experiments.
arXiv Detail & Related papers (2020-04-19T04:55:29Z)
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.