Amplifying Two-Mode Squeezing in Nanomechanical Resonators

• URL: http://arxiv.org/abs/2508.18972v1
• Date: Tue, 26 Aug 2025 12:17:08 GMT
• Title: Amplifying Two-Mode Squeezing in Nanomechanical Resonators
• Authors: Muhdin Abdo Wodedo, Tesfay Gebremariam Tesfahannes, Tewodros Yirgashewa Darge, Mauro Pereira, Berihu Teklu,
• Abstract summary: Quantum squeezing plays a crucial role in enhancing the precision of quantum metrology and improving the efficiency of quantum information processing protocols.<n>We propose a scheme to amplify two-mode squeezing in nanomechanical resonators, harnessing parametric amplification and two-tone laser controls.
• Score: 0.0
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: Quantum squeezing plays a crucial role in enhancing the precision of quantum metrology and improving the efficiency of quantum information processing protocols. We thus propose a scheme to amplify two-mode squeezing in nanomechanical resonators, harnessing parametric amplification and two-tone laser controls. The red-detuned laser drives facilitate the cooling of the nanomechanical resonators down to their ground state and allow optimal quantum state transfer in the weak-coupling, resolved sideband regime. In particular, the competing blue-detuned lasers in the driving pairs induce displacement squeezing in mechanical resonators. Thus, the quantum state transfer of the squeezing in nanomechanical resonators and the intracavity correlated photons of the parametric amplifier significantly enhance the two-mode mechanical squeezing. Notably, increasing the coupling strength of the red detuned laser and the ratio of blue-to-red detuned laser dramatically amplifies the two-mode mechanical squeezing under realistic experiment parameters of a typical optomechanical system. Our findings reveal that the proposed cooperative mechanism effectively enhances the level of two-mode mechanical squeezing with a considerable improvement and demonstrates exceptional resilience to thermal noise.

Related papers

• Optical Entanglement Facilitated by Opto-Mechanical Cooling [41.99844472131922]
  We present a theoretical study of low frequency entanglement generation between two optical harmonics emitted from a cavity optomechanical system operating in the resolved-sideband regime.<n>Our findings demonstrate the feasibility of robust entanglement under ambient conditions, opening new avenues for hybrid quantum technologies based on mechanical interfaces and continuous-variable quantum information processing.
  arXiv  Detail & Related papers  (2025-11-21T13:41:58Z)
• Quadrature squeezing in a nanophotonic microresonator [42.29248343585333]
  We show single-mode quadrature squeezing in a photonic crystal microresonator via degenerate dual-pump spontaneous four-wave mixing.<n>Results open a promising pathway toward integrated squeezed light sources for quantum-enhanced interferometry, Gaussian boson sampling, coherent Ising machines, and universal quantum computing.
  arXiv  Detail & Related papers  (2025-02-24T17:09:10Z)
• Wavefront shaping enhanced nano-optomechanics down to the quantum precision limit [37.69303106863453]
  We introduce wavefront shaping as a tool for optimizing the sensitivity in nano-optomechanical measurement schemes.<n>We demonstrate that wavefront shaping enables a 350-fold enhancement of the measurement signal-to-noise.
  arXiv  Detail & Related papers  (2025-02-17T22:47:40Z)
• Optimizing mechanical entanglement using squeezing and parametric amplification [0.0]
  We propose a scheme of an optomechanical system that optimize entanglement in nanomechanical resonators.<n>The system is driven by red-detuned laser fields, which enable simultaneous cooling of the mechanical resonators.
  arXiv  Detail & Related papers  (2024-10-20T09:37:30Z)
• 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)
• Realizing a mechanical dynamical Casimir effect with a low-frequency oscillator [0.0]
  We propose to realize a mechanical dynamical Casimir effect (MDCE) in a hybrid optomechanical system.<n>It is not a quantum simulation of a parametric DCE such as in superconducting circuits.<n>It is found that the mechanical frequency can be about two orders smaller than the cavity mode in yielding a remarkable flux of DCE photons.
  arXiv  Detail & Related papers  (2024-08-05T08:38:44Z)
• Coherent Control of an Optical Quantum Dot Using Phonons and Photons [5.1635749330879905]
  We describe unique features and advantages of optical two-level systems, or qubits, for optomechanics. The qubit state can be coherently controlled using both phonons and resonant or detuned photons. Time-correlated single-photon counting measurements reveal the control of QD population dynamics.
  arXiv  Detail & Related papers  (2024-04-02T16:25:35Z)
• In-situ-tunable spin-spin interactions in a Penning trap with in-bore optomechanics [41.94295877935867]
  We present an optomechanical system for in-situ tuning of the coherent spin-motion and spin-spin interaction strength. We characterize the system using measurements of the induced mean-field spin precession. These experiments show approximately a $times2$ variation in the ratio of the coherent to incoherent interaction strength.
  arXiv  Detail & Related papers  (2024-01-31T11:00:39Z)
• Enhanced optomechanical interaction in the unbalanced interferometer [40.96261204117952]
  Quantum optomechanical systems enable the study of fundamental questions on quantum nature of massive objects. Here we propose a modification of the Michelson-Sagnac interferometer, which allows to boost the optomechanical coupling strength.
  arXiv  Detail & Related papers  (2023-05-11T14:24:34Z)
• Strong mechanical squeezing in a microcavity with double quantum wells [0.0]
  In a hybrid quantum system composed of two quantum wells placed inside a cavity with a moving end mirror pumped by bichromatic coherent light, we address the formation of squeezed states of a mechanical resonator. We show that the robustness of this squeezing against thermal fluctuations is important for practical applications of such systems.
  arXiv  Detail & Related papers  (2023-02-01T16:00:55Z)
• 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)
• Enhanced Cavity Optomechanics with Quantum-well Exciton Polaritons [0.0]
  microresonators embed quantum wells can host excitonic, optical and mechanical modes at once. We investigate the case where the system operates in the strong exciton-photon coupling regime. We predict an enhancement of polariton-phonon interactions by two orders of magnitude with respect to mere optomechanical coupling.
  arXiv  Detail & Related papers  (2022-02-24T13:26:19Z)
• 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)

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.