Quantum metrology enhanced by coherence-induced-driving in a cavity QED setup
arXiv:1906.01858 · doi:10.1103/PhysRevA.100.053825
Abstract
We propose a quantum metrology scheme in a cavity QED setup to achieve the Heisenberg limit. In our scheme, a series of identical two-level atoms randomly pass through and interact with a dissipative single-mode cavity. Different from the entanglement based Heisenberg limit metrology scheme, we do not need to prepare the atomic entangled states before they enter into the cavity. We show that the initial atomic coherence will induce an effective driving to the cavity field, whose steady state is an incoherent superposition of orthogonal states, with the superposition probabilities being dependent on the atom-cavity coupling strength. By measuring the average photon number of the cavity in the steady state, we demonstrate that the root-mean-square of the fluctuation of the atom-cavity coupling strength is proportional to ( is the effective atom number interacting with the photon in the cavity during its lifetime). It implies that we have achieved the Heisenberg limit in our quantum metrology process. We also discuss the experimental feasibility of our theoretical proposal. Our findings may find potential applications in quantum metrology technology.
arXiv comment7 Pages, 2 figures, Accepted by Phys. Rev. A
References in corpus (40)
- The Quantum Internet
- Quantum sensing
- Gaussian Quantum Information
- Quantum metrology
- Quantum Communication
- Multi-photon entanglement and interferometry
- Enhancing the sensitivity of the LIGO gravitational wave detector by using squeezed states of light
- Demonstration of Two-Qubit Algorithms with a Superconducting Quantum Processor
- Multi-particle entanglement of hot trapped ions
- Superconducting qubit-oscillator circuit beyond the ultrastrong-coupling regime
- Entanglement-free Heisenberg-limited phase estimation
- Preparation and Measurement of Three-Qubit Entanglement in a Superconducting Circuit
- Experimental ten-photon entanglement
- Microwave Quantum Illumination
- Quantum Illumination at the Microwave Wavelengths
- Ultrastrong coupling of a single artificial atom to an electromagnetic continuum in the nonperturbative regime
- Dissipative production of a maximally entangled steady state
- First Long-Term Application of Squeezed States of Light in a Gravitational-Wave Observatory
- Quantum Enhanced Multiple Phase Estimation
- Using entanglement against noise in quantum metrology
- Robust creation of entanglement between remote memory qubits
- Increasing sensing resolution with error correction
- Entangled Bell and GHZ states of excitons in coupled quantum dots
- Strong coupling between a trapped single atom and an all-fiber cavity
- 0.75 atoms improve the clock signal of 10,000 atoms
- Quantum parameter estimation with optimal control
- Preserving qubit coherence by dynamical decoupling
- Experimental preparation of eight-partite linear and two-diamond shape cluster states for photonic qumodes
- Near Heisenberg limited atomic clocks in the presence of decoherence
- Optimal Gaussian measurements for phase estimation in single-mode Gaussian metrology
- Retrieving ideal precision in noisy quantum optical metrology
- Coherent single-atom superradiance
- Quantum metrology with one-dimensional superradiant photonic states
- Quantum-optimal detection of one-versus-two incoherent sources with arbitrary separation
- Quantum-optimal detection of one-versus-two incoherent optical sources with arbitrary separation
- Enhancing parameter precision of optimal quantum estimation by direct quantum feedback
- Single-particle machine for quantum thermalization
- Heralded generation of multiphoton entanglement
- Heisenberg Limit Superradiant Superresolving Metrology
- Quantum metrology in local dissipative environments
Cited by in corpus (8)
- Understanding and Improving Critical Metrology. Quenching Superradiant Light-Matter Systems Beyond the Critical Point
- Strict hierarchy of optimal strategies for global estimations: Linking global estimations with local ones
- Distributed quantum sensing with optical lattices
- Influence of initial states on memory effects: A study of early-time superradiance
- Frozen condition of quantum coherence
- Configuration-dependent precision in magnetometry and thermometry using multi-qubit quantum sensors
- State convertibility under genuinely incoherent operations
- Two-Polariton Blockade via Ultrastrong Light-Matter Coupling