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

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.

8 pages, 4 figures

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• Spontaneous emission in Casimir-Rabi oscillations through a weak optomechanical coupling
• Quantum Geometric Tensor and Critical Metrology in the Anisotropic Dicke Model
• Quantum metric and metrology with parametrically-driven Tavis-Cummings models
• Quantum sensing with ultracold simulators in lattice and ensemble systems: a review
• Critical quantum metrology robust against dissipation and non-adiabaticity
• Critical sensing with a single bosonic mode without boson-boson interactions
• Quantum Fisher information as a witness of non-Markovianity and criticality in the spin-boson model
• Investigating Lipkin-Meshkov-Glick Model and Criticality-Enhanced Metrology in a Coherent Ising Machine
• Quantum heat transport in nonequilibrium anisotropic Dicke model
• Observation of photonic dynamics in dissipative quantum Rabi models