Upgrading Quantum Metrology by Combined Sensitivity Resources in Mixed Linear-Nonlinear Light-Matter Interactions with Bias Field

Abstract

The major goal of quantum metrology (QM) is to exploit the quantum resources to raise the measurement precision (MP) as high as possible. When the quantum resources such as squeezing has been widely explored, light-mater interaction systems set up a highly controllable platform applicable for QM in novel pursuit of high MP. However, critical QM by the conventional linear interaction is confronted with the restriction of low-frequency-limit condition and the detrimental problem of diverging preparation time of the probe state (PTPS). This work shows that mixed interactions by linear and nonlinear light-matter couplings in the presence of bias field can provide various quantum resources, including squeezing, degeneracy lifting, displacement and quantum phase transition. These resources manifest high sensitivity for QM as demonstrated by analytically obtained critical components or exponential behavior of quantum Fisher information. We find that these sensitivity resources can be combined to upgrade the upper bound of MP by many orders over the widely-applied squeezing resource. As further advantages, such an upgraded metrology protocol not only breaks the frequency-limit restrictions but also avoids the detrimental problem of diverging PTPS which were both encountered in linear interaction. Our work paves a way to exploit and combine all the resources in momentum, position and spin spaces to maximize the MP and expand the applicable conditions simultaneously.

14 pages, 7 figures

References in corpus (14)

• Entanglement detection
• Microwave photonics with superconducting quantum circuits
• Observation of the Bloch-Siegert Shift in a Qubit-Oscillator System in the Ultrastrong Coupling Regime
• Fidelity, dynamic structure factor, and susceptibility in critical phenomena
• Quantum speed limit for physical processes
• Low-decoherence flux qubit
• Some remarks on 'superradiant' phase transitions in light-matter systems
• Cooling a mechanical resonator via coupling to a tunable double quantum dot
• Understanding the quantum Rabi ring using analogies to quantum magnetism
• Generalized fidelity susceptibility at phase transitions
• Approaching Heisenberg-scalable thermometry with built-in robustness against noise
• Robust topological feature against non-Hermiticity in Jaynes-Cummings Model
• Critical quantum metrology in a stabilized two-photon Rabi model
• Combining Squeezing and Transition Sensitivity Resources for Quantum Metrology by Asymmetric Non-Linear Rabi model

Cited by in corpus (3)

• Globalized Nonlinear Critical Quantum Metrology by Two-photon Rabi-Stark model
• Phonon-induced two-axis spin squeezing with decoherence reduction in hybrid spin-optomechanical system
• A Kaleidoscope of Topological Structures in Dipolar Bose-Einstein Condensates with Weyl-Like Spin-Orbit Coupling in Anharmonic Trap