Quantum interferometry for rotation sensing in an optical microresonator

• URL: http://arxiv.org/abs/2103.10007v2
• Date: Tue, 8 Feb 2022 08:01:44 GMT
• Title: Quantum interferometry for rotation sensing in an optical microresonator
• Authors: Weijun Cheng, Zhihai Wang and Xiaoguang Wang
• Abstract summary: We realize an effective interferometry with SU(2) algebraic structure. We find that the estimate accuracy for the angular velocity of the rotation can achieve and even break the Heisenberg limit. We hope that our investigation will be useful in the design of a quantum gyroscope based on spinning resonators.
• Score: 0.6645111950779664
• License: http://creativecommons.org/licenses/by-nc-sa/4.0/
• Abstract: We theoretically propose a scheme to perform rotation sensing in a Whispering-gallery-mode resonator setup. With the assistance of a large detuned two-level atom, which induces the effective coupling between clockwise and counterclockwise propagating modes in the resonator, we realize an effective interferometry with SU(2) algebraic structure. By studying the quantum Fisher information of the system, we find that the estimate accuracy for the angular velocity of the rotation can achieve and even break the Heisenberg limit in linear and nonlinear setup, respectively. The high performance of quantum metrology is proved to be associated with the state compressibility during the time evolution. We hope that our investigation will be useful in the design of a quantum gyroscope based on spinning resonators.

Related papers

• Cooling and Squeezing a Microwave Cavity State with Magnons Using a Beam Splitter Interaction [2.963764643658447]
  We propose two geometries to realize a significant beam splitter interaction (XZ coupling) between magnons and a 2D microwave cavity mode. We show that we can not only make the backaction damping (anti-damping) rate larger than the bare microwave resonator damping rate, but that we can also achieve quantum squeezing of the resonator.
  arXiv  Detail & Related papers  (2024-09-30T19:07:18Z)
• 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)
• Vector Atom Accelerometry in an Optical Lattice [0.0]
  We experimentally demonstrate two atom interferometers capable of measuring both the magnitude and direction of applied inertial forces. These interferometers do not rely on the ubiquitous light-pulses of traditional atom sensors. We find the performance of our device to be near the quantum limit for the interferometer size and quantum detection efficiency of the atoms.
  arXiv  Detail & Related papers  (2024-07-05T21:52:28Z)
• Witnessing mass-energy equivalence with trapped atom interferometers [0.10686401485328585]
  We propose an experimental setup to probe the interplay between the quantum superposition principle and the gravitational time dilation arising from the mass-energy equivalence. It capitalizes on state-of-the-art atom interferometers that can keep atoms trapped in a superposition of heights in Earth's gravitational field for exceedingly long times reaching minute-scale.
  arXiv  Detail & Related papers  (2024-06-27T09:43:05Z)
• 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)
• Trapped-Ion Quantum Simulation of Collective Neutrino Oscillations [55.41644538483948]
  We study strategies to simulate the coherent collective oscillations of a system of N neutrinos in the two-flavor approximation using quantum computation. We find that the gate complexity using second order Trotter- Suzuki formulae scales better with system size than with other decomposition methods such as Quantum Signal Processing.
  arXiv  Detail & Related papers  (2022-07-07T09:39:40Z)
• SU(2) hyper-clocks: quantum engineering of spinor interferences for time and frequency metrology [0.0]
  Ramsey's method of separated fields was elaborated boosting over many decades metrological performances of atomic clocks. A generalization of this interferometric method is presented replacing the two single coherent excitations by arbitrary composite laser pulses. Hyper-clocks based on three-pulse and five-pulse interrogation protocols are studied and shown to exhibit nonlinear cubic and quintic sensitivities to residual probe-induced light-shifts.
  arXiv  Detail & Related papers  (2021-09-28T09:01:20Z)
• Enhanced Parameter Estimation with Periodically Driven Quantum Probe [0.0]
  We show that in the limit of high-frequency drive and low bosonic frequency the quantum Jahn-Teller system exhibits critical behaviour. A major advantage of our scheme is the robustness of the system against spin decoherence which allows to perform parameter estimations with measurement time not limited by spin dephasing.
  arXiv  Detail & Related papers  (2021-06-11T10:43:44Z)
• Controlled coherent dynamics of [VO(TPP)], a prototype molecular nuclear qudit with an electronic ancilla [50.002949299918136]
  We show that [VO(TPP)] (vanadyl tetraphenylporphyrinate) is a promising system suitable to implement quantum computation algorithms. It embeds an electronic spin 1/2 coupled through hyperfine interaction to a nuclear spin 7/2, both characterized by remarkable coherence.
  arXiv  Detail & Related papers  (2021-03-15T21:38:41Z)
• 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.