Critical quantum sensing based on the Jaynes-Cummings model with a squeezing drive

• URL: http://arxiv.org/abs/2212.10760v1
• Date: Wed, 21 Dec 2022 04:40:34 GMT
• Title: Critical quantum sensing based on the Jaynes-Cummings model with a squeezing drive
• Authors: Jia-Hao L\"u, Wen Ning, Xin Zhu, Fan Wu, Li-Tuo Shen, Zhen-Biao Yang and Shi-Biao Zheng
• Abstract summary: Quantum sensing improves the accuracy of measurements of relevant parameters by exploiting the unique properties of quantum systems. In this work, we explore an alternative to construct the analog of the QRM for the sensing, exploiting the criticality appearing in the Jaynes-Cummings (JC) model whose bosonic field is parametrically driven.
• Score: 6.284204043713657
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: Quantum sensing improves the accuracy of measurements of relevant parameters by exploiting the unique properties of quantum systems. The divergent susceptibility of physical systems near a critical point for quantum phase transition enables criticality-enhanced quantum sensing. The quantum Rabi model (QRM), composed of a single qubit coupled to a single bosonic field, represents a good candidate for realizing such critical enhancement for its simplicity, but it is experimentally challenging to achieve the ultrastrong qubit-field coupling required to realize the critical phenomena. In this work, we explore an alternative to construct the analog of the QRM for the sensing, exploiting the criticality appearing in the Jaynes-Cummings (JC) model whose bosonic field is parametrically driven, not necessitating the ultrastrong coupling condition thus to some extent relaxing the requirement for the practical implementation.

Related papers

• Quantum metrological capability as a probe for quantum phase transition [1.5574423250822542]
  The metrological capability quantified by the quantum Fisher information captivatingly shows an unique peak in the vicinity of the quantum critical point. We show that the probing can be implemented by extracting quantum fluctuations of the interferometric generator.
  arXiv  Detail & Related papers  (2024-08-19T08:18:03Z)
• Thermalization and Criticality on an Analog-Digital Quantum Simulator [133.58336306417294]
  We present a quantum simulator comprising 69 superconducting qubits which supports both universal quantum gates and high-fidelity analog evolution. We observe signatures of the classical Kosterlitz-Thouless phase transition, as well as strong deviations from Kibble-Zurek scaling predictions. We digitally prepare the system in pairwise-entangled dimer states and image the transport of energy and vorticity during thermalization.
  arXiv  Detail & Related papers  (2024-05-27T17:40:39Z)
• Quantum data learning for quantum simulations in high-energy physics [55.41644538483948]
  We explore the applicability of quantum-data learning to practical problems in high-energy physics. We make use of ansatz based on quantum convolutional neural networks and numerically show that it is capable of recognizing quantum phases of ground states. The observation of non-trivial learning properties demonstrated in these benchmarks will motivate further exploration of the quantum-data learning architecture in high-energy physics.
  arXiv  Detail & Related papers  (2023-06-29T18:00:01Z)
• Localization Driven Quantum Sensing [0.0]
  We show that the delocalization-localization transition in a quantum-many body (QMB) systems is a compelling quantum resource for achieving quantum-enhanced sensitivity in parameter estimation. We exploit the vulnerability of a near-transition QMB state against the parameter shift for devising efficient sensing tools.
  arXiv  Detail & Related papers  (2023-05-03T17:57:37Z)
• Enhancement of Quantum Sensing in a Cavity Optomechanical System around Quantum Critical Point [3.0770434477273647]
  We present a quantum phase transition in the coupling cavity-mechanical oscillator system when the coupling strength crosses a critical point, determined by the effective detuning of cavity and frequency of mechanical mode. This result provides an alternative method to enhance the quantum sensing of some physical quantities, such as mass, charge, and weak force, in a large mass system.
  arXiv  Detail & Related papers  (2023-03-29T06:37:30Z)
• Universality of critical dynamics with finite entanglement [68.8204255655161]
  We study how low-energy dynamics of quantum systems near criticality are modified by finite entanglement. Our result establishes the precise role played by entanglement in time-dependent critical phenomena.
  arXiv  Detail & Related papers  (2023-01-23T19:23:54Z)
• Quantum control methods for robust entanglement of trapped ions [0.0]
  A major obstacle in the way of practical quantum computing is achieving scalable and robust high-fidelity entangling gates. quantum control has become an essential tool, as it can make the entangling interaction resilient to sources of noise.
  arXiv  Detail & Related papers  (2022-06-13T11:48:05Z)
• Circuit Symmetry Verification Mitigates Quantum-Domain Impairments [69.33243249411113]
  We propose circuit-oriented symmetry verification that are capable of verifying the commutativity of quantum circuits without the knowledge of the quantum state. In particular, we propose the Fourier-temporal stabilizer (STS) technique, which generalizes the conventional quantum-domain formalism to circuit-oriented stabilizers.
  arXiv  Detail & Related papers  (2021-12-27T21:15:35Z)
• Efficient criteria of quantumness for a large system of qubits [58.720142291102135]
  We discuss the dimensionless combinations of basic parameters of large, partially quantum coherent systems. Based on analytical and numerical calculations, we suggest one such number for a system of qubits undergoing adiabatic evolution.
  arXiv  Detail & Related papers  (2021-08-30T23:50:05Z)
• Dynamic framework for criticality-enhanced quantum sensing [1.819932604590499]
  Quantum criticality, as a fascinating quantum phenomenon, may provide significant advantages for quantum sensing. We propose a framework for quantum sensing with a family of Hamiltonians that undergo quantum phase transitions. It is expected to provide a route towards the implementation of criticality-enhanced quantum sensing.
  arXiv  Detail & Related papers  (2020-08-26T05:36:46Z)
• In and out of equilibrium quantum metrology with mean-field quantum criticality [68.8204255655161]
  We study the influence that collective transition phenomena have on quantum metrological protocols. The single spherical quantum spin (SQS) serves as stereotypical toy model that allows analytical insights on a mean-field level.
  arXiv  Detail & Related papers  (2020-01-09T19:20:42Z)

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.