Strong Thermomechanical Noise Squeezing Stabilized by Feedback

• URL: http://arxiv.org/abs/2403.02328v3
• Date: Tue, 26 Mar 2024 08:56:56 GMT
• Title: Strong Thermomechanical Noise Squeezing Stabilized by Feedback
• Authors: Aida Mashaal, Lucio Stefan, Andrea Ranfagni, Letizia Catalini, Ilia Chernobrovkin, Thibault Capelle, Eric Langman, Albert Schliesser,
• Abstract summary: Squeezing the quadrature noise of a harmonic oscillator used as a sensor can enhance its sensitivity in certain measurment schemes. We apply this approach to highly-stressed silicon nitride membrane resonators, with effective masses of the order few nanograms and quality factors routinely exceeding 108. We observe maximum thermomechanical squeezing by record-high 17 dB and 21 dB, respectively, and we argue that even larger values can be attained with minimal changes to the device design.
• Score: 0.0
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: Squeezing the quadrature noise of a harmonic oscillator used as a sensor can enhance its sensitivity in certain measurment schemes. The canonical approach, based on parametric modulation of the oscillation frequency, is usually limited to a squeezing of at most 3 dB. However, this can be overcome by additional stabilization of the anti-squeezed quadrature. Here, we apply this approach to highly-stressed silicon nitride membrane resonators, with effective masses of the order few nanograms and quality factors routinely exceeding 108, which hold promise for sensing applications in both the classical and quantum regimes. We benchmark their performance using either piezo or capacitive parametric modulation. We observe maximum thermomechanical squeezing by record-high 17 dB and 21 dB, respectively, and we argue that even larger values can be attained with minimal changes to the device design. Finally, we provide a full quantum theory of a combination of this approach with quantum-limited motion measurement and conclude that quantum squeezing is attainable at moderate cryogenic temperatures.

Related papers

• Enhancing entanglement in nano-mechanical oscillators via hybrid optomechanical systems [0.0]
  We compare four criteria for continuous-variable entanglement, which serve as sufficient conditions for determining the separability of Gaussian two-mode states. Our findings indicate that while the applied inseparability criteria show similar entanglement patterns within specific parameter ranges, the degree of entanglement varies depending on the chosen criteria.
  arXiv  Detail & Related papers  (2024-10-20T09:37:30Z)
• Frequency-dependent squeezing via Einstein-Podolsky-Rosen entanglement based on silicon nitride microring resonators [14.331164698709433]
  A frequency-dependent squeezing technique has overcome the standard quantum limit in optomechanical force measurements. Developments in integrated photonics have paved the way for the emergence of integrated Kerr quantum frequency combs. A platform has been established for designing EPR entangled quantum frequency combs using on-chip silicon nitride microring resonators.
  arXiv  Detail & Related papers  (2024-09-14T06:50:32Z)
• 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)
• Room-temperature quantum optomechanics using an ultra-low noise cavity [0.0]
  We demonstrate optomechanical squeezing at room temperature in a phononic-engineered membrane-in-the-middle system. By using a high finesse cavity whose mirrors are patterned with phononic crystal structures, we reduce cavity frequency noise by more than 700-fold. These advances enable operation within a factor of 2.5 of the Heisenberg limit, leading to squeezing of the probing field by 1.09 dB below the vacuum fluctuations.
  arXiv  Detail & Related papers  (2023-09-26T16:27:32Z)
• 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)
• Improved constraints on minimum length models with a macroscopic low loss phonon cavity [1.299941371793082]
  Experimental tests of the generalised uncertainty principle can be performed by searching for the induced frequency perturbations of the modes of mechanical resonators. In this work previous constraints made with mechanical resonators are improved upon by three orders of magnitude. As well as purely mechanical resonant modes; hybrid electromechanical anti-resonant modes are investigated, and shown to be sensitive to the same GUP induced effects.
  arXiv  Detail & Related papers  (2023-04-03T02:36:55Z)
• Quantum emulation of the transient dynamics in the multistate Landau-Zener model [50.591267188664666]
  We study the transient dynamics in the multistate Landau-Zener model as a function of the Landau-Zener velocity. Our experiments pave the way for more complex simulations with qubits coupled to an engineered bosonic mode spectrum.
  arXiv  Detail & Related papers  (2022-11-26T15:04:11Z)
• 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)
• Dynamics of Transmon Ionization [94.70553167084388]
  We numerically explore the dynamics of a driven transmon-resonator system under strong and nearly resonant measurement drives. We find clear signatures of transmon ionization where the qubit escapes out of its cosine potential.
  arXiv  Detail & Related papers  (2022-03-21T18:00:15Z)
• Optimal non-classical correlations of light with a levitated nano-sphere [34.82692226532414]
  Nonclassical correlations provide a resource for many applications in quantum technology. Optomechanical systems can generate nonclassical correlations between the mechanical mode and a mode of travelling light. We propose automated optimization of the production of quantum correlations in such a system.
  arXiv  Detail & Related papers  (2020-06-26T15:27:47Z)
• Quantum hybrid optomechanical inertial sensing [0.0]
  We discuss the design of quantum hybrid inertial sensor that combines an optomechanical inertial sensor with the retro-reflector of a cold atom interferometer. This sensor fusion approach provides absolute and high accuracy measurements with cold atom interferometers. We evaluate which parameters yield an optimal acceleration sensitivity, from which we anticipate a noise floor at nano-g levels from DC to 1 kHz.
  arXiv  Detail & Related papers  (2020-05-18T00:05:25Z)

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.