Adaptive homodyne measurement of optical phase

Abstract

We present an experimental demonstration of the power of real-time feedback in quantum metrology, confirming a theoretical prediction by Wiseman regarding the superior performance of an adaptive homodyne technique for single-shot measurement of optical phase. For phase measurements performed on weak coherent states with no prior knowledge of the signal phase, we show that the variance of adaptive homodyne estimation approaches closer to the fundamental quantum uncertainty limit than any previously demonstrated technique. Our results underscore the importance of real-time feedback for reaching quantum performance limits in coherent telecommunication, precision measurement and information processing.

RevTex4, color PDF figures (separate files), submitted to PRL

References in corpus (6)

• Quantum feedback control and classical control theory
• Continuous quantum error correction via quantum feedback control
• Capture and release of a conditional state of a cavity QED system by quantum feedback
• Adaptive single-shot phase measurements: The full quantum theory
• Retroactive quantum jumps in a strongly-coupled atom-field system
• Phase measurements at the theoretical limit

Cited by in corpus (178)

• Photonic quantum technologies
• Introduction to Quantum Noise, Measurement and Amplification
• General framework for estimating the ultimate precision limit in noisy quantum-enhanced metrology
• Control of quantum phenomena: Past, present, and future
• Entanglement-free Heisenberg-limited phase estimation
• Quantum enhanced measurements without entanglement
• Mach-Zehnder Interferometry at the Heisenberg Limit with coherent and squeezed-vacuum light
• Feedback control of quantum state reduction
• Coherent quantum LQG control
• Rapid Single-Shot Measurement of a Singlet-Triplet Qubit
• Quantum feedback: theory, experiments, and applications
• Modeling and Control of Quantum Systems: An Introduction
• A Geometric Perspective on Quantum Parameter Estimation
• Optical phase estimation in the presence of phase-diffusion
• Quantum-enhanced optical phase tracking
• Machine Learning for Precise Quantum Measurement
• Network Synthesis of Linear Dynamical Quantum Stochastic Systems
• Deterministic Dicke state preparation with continuous measurement and control
• Optimal Unravellings for Feedback Control in Linear Quantum Systems
• Noise-Powered Probabilistic Concentration of Phase Information
• Experimental feedback control of quantum systems using weak measurements
• The Fisher information and the quantum Cramer-Rao sensitivity limit of continuous measurements
• Advantages of Coherent Feedback for Cooling Quantum Oscillators
• Ab-initio Quantum Enhanced Optical Phase Estimation Using Real-time Feedback Control
• Entanglement Sharing in the Two-Atom Tavis-Cummings Model
• Local asymptotic normality for finite dimensional quantum systems
• Quantum Feedback Control of Atomic Motion in an Optical Cavity
• Tutorial: Optical quantum metrology
• Robust quantum parameter estimation: coherent magnetometry with feedback
• How to project qubits faster using quantum feedback
• Continuous quantum nondemolition feedback and unconditional atomic spin squeezing
• Adaptive Optical Phase Estimation Using Time-Symmetric Quantum Smoothing
• Learning in Quantum Control: High-Dimensional Global Optimization for Noisy Quantum Dynamics
• A discrete invitation to quantum filtering and feedback control
• Pure-state quantum trajectories for general non-Markovian systems do not exist
• Phase estimation for thermal Gaussian states
• Experimental Phase Estimation Enhanced By Machine Learning
• Quantum-enhanced metrology for multiple phase estimation with noise
• Global sensing and its impact for quantum many-body probes with criticality
• Optical interferometry in the presence of large phase diffusion
• Optimal Scheme for Quantum Metrology
• The quantum Bell-Ziv-Zakai bounds and Heisenberg limits for waveform estimation
• Enhancement of Field Squeezing Using Coherent Feedback
• Efficient Quantum Filtering for Quantum Feedback Control
• Characterization of a qubit Hamiltonian using adaptive measurements in a fixed basis
• Quantum Control of a Single Qubit
• Distinguishing between optical coherent states with imperfect detection
• Nonclassical Light and Metrological Power: An Introductory Review
• Low-Latency Digital Signal Processing for Feedback and Feedforward in Quantum Computing and Communication
• Quantum-Limited Mirror-Motion Estimation
• Optimal charging of open spin-chain quantum batteries via homodyne-based feedback control
• Arithmetic on a Distributed-Memory Quantum Multicomputer
• Bellman equations for optimal feedback control of qubit states
• Local asymptotic normality in quantum statistics
• Robust Single-Shot Spin Measurement with 99.5% Fidelity in a Quantum Dot Array
• Experimental characterisation of unsharp qubit observables and sequential measurement incompatibility via quantum random access codes
• Optimal Quantum Filtering and Quantum Feedback Control
• Hamilton-Jacobi-Bellman equations for Quantum Filtering and Control
• Long-distance continuous-variable quantum key distribution using non-Gaussian state-discrimination detection
• Noisy quantum metrology with the assistance of indefinite causal order
• Reconsidering Rapid Qubit Purification by Feedback
• Feedback cooling of atomic motion in cavity QED
• Quantum theory of optical temporal phase and instantaneous frequency. II. Continuous time limit and state-variable approach to phase-locked loop design
• Coherent controllers for optical-feedback cooling of quantum oscillators
• Feed-forward control for quantum state protection against decoherence
• Feedback control in quantum optics: an overview of experimental breakthroughs and areas of application
• Quantum nondemolition measurements with optical parametric amplifiers for ultrafast universal quantum information processing
• Critical quantum metrology assisted by real-time feedback control
• Experimental quantum tomography of a homodyne detector
• Accuracy of quantum-state estimation utilizing Akaike's information criterion
• A New Strategy of Quantum-State Estimation for Achieving the Cramer-Rao Bound
• On the optimal feedback control of linear quantum systems in the presence of thermal noise
• Feedback Control Using Only Quantum Back-Action
• Quantum Fourier transform for quantum sensing
• Adaptive Measurements in the Optical Quantum Information Laboratory
• A superconducting microwave multivibrator produced by coherent feedback
• Mixed state discrimination using optimal control
• Mechanical oscillator thermometry in the nonlinear optomechanical regime
• Adaptive phase measurements for narrowband squeezed beams
• On the separation principle of quantum control
• Programmable Logic Devices in Experimental Quantum Optics
• Quantum Feedback Control: How to use Verification Theorems and Viscosity Solutions to Find Optimal Protocols
• Efficient feedback controllers for continuous-time quantum error correction
• Quantum Fokker-Planck Master Equation for Continuous Feedback Control
• Adaptive Phase Measurements in Linear Optical Quantum Computation
• Entanglement assisted alignment of reference frames using a dense covariant coding
• Stark localization as a resource for weak-field sensing with super-Heisenberg precision
• Implementation of a canonical phase measurement with quantum feedback
• Continuous real-time tracking of a quantum phase below the standard quantum limit
• Determination of maximal Gaussian entanglement achievable by feedback-controlled dynamics
• Nonideal quantum detectors in Bayesian formalism
• Adaptive phase estimation is more accurate than non-adaptive phase estimation for continuous beams of light
• Quantum parameter estimation on coherently superposed noisy channels
• Rapid purification of quantum systems by measuring in a feedback-controlled unbiased basis
• Robustness of Quantum-Enhanced Adaptive Phase Estimation
• Defending Continuous Variable Teleportation: Why a laser is a clock, not a quantum channel
• Quantum trajectories for the realistic measurement of a solid-state charge qubit
• Dynamical programming of continuously observed quantum systems
• Continuous quantum feedback of coherent oscillations in a solid-state qubit
• Quantum filtering: a reference probability approach
• Almost-periodic time observables for bound quantum systems
• Optical phase estimation via coherent state and displaced photon counting
• Construction of bilinear control Hamiltonians using the series product and quantum feedback
• Replacing Quantum Feedback with Open-Loop Control and Quantum Filtering
• Adiabatic evolution under quantum control
• Hypothesis testing with open quantum systems
• Current Trends in Global Quantum Metrology
• Model for monitoring of a charge qubit using a radio-frequency quantum point contact including experimental imperfections
• Control of Stochastic Quantum Dynamics by Differentiable Programming
• Spontaneous symmetry breaking induced by quantum monitoring
• Benchmarking Machine Learning Algorithms for Adaptive Quantum Phase Estimation with Noisy Intermediate-Scale Quantum Sensors
• Measurement-based direct quantum feedback control in an open quantum system
• Continuous weak measurement and feedback control of a solid-state charge qubit: physical unravelling of non-Lindblad master equation
• Weak measurement and rapid state reduction in bipartite quantum systems
• An introduction to quantum filtering
• Long-range interacting Stark many-body probes with Super-Heisenberg precision
• Extended Techniques for Feedback Control of A Single Qubit
• Experimental ancilla-assisted phase-estimation in a noisy channel
• Completely Positive Quantum Trajectories with Applications to Quantum State Smoothing
• Exponentially-enhanced quantum sensing with many-body phase transitions
• Typicality of Heisenberg scaling precision in multi-mode quantum metrology
• Squeezing as a resource to counteract phase diffusion in optical phase estimation
• Sub-Shot-Noise Quantum Optical Interferometry: A Comparison of Entangled State Performance within a Unified Measurement Scheme
• Robust Adaptive measurement for qubit state preparation
• Robust Adaptive Quantum Phase Estimation
• Adaptive estimation of a time-varying phase with a power-law spectrum via continuous squeezed states
• Single-shot non-Gaussian Measurements for Optical Phase Estimation
• Quantum Teleportation of Dynamics and Effective Interactions Between Remote Systems
• Scalable quantum field simulations of conditioned systems
• Quantum advantage of time-reversed ancilla-based metrology of absorption parameters
• Dynamic Quantum Games
• Eventum Mechanics of Quantum Trajectories: Continual Measurements, Quantum Predictions and Feedback Control
• Energy conservation and fluctuation theorem are incompatible for quantum work
• Randomized Dynamical Decoupling Techniques for Coherent Quantum Control
• Quantum coherence control of solid-state charge qubit by means of a suboptimal feedback algorithm
• Coherent Optical Communications Enhanced by Machine Intelligence
• Retrodictive quantum state engineering
• Mutual information--based approach to adaptive homodyne detection of quantum optical states
• Belavkin Filtering with Squeezed Light Sources
• Quantum proportional-integral (PI) control
• Experimental investigation of Bayesian bounds in multiparameter estimation
• Optimizing quantum-enhanced Bayesian multiparameter estimation of phase and noise in practical sensors
• Complementarity and Entanglement in Quantum Information Theory
• Adaptive identification of coherent states
• Optimized entanglement for quantum parameter estimation from noisy qubits
• Applications of Feedback Control in Quantum Systems
• Quantum Feedback Networks and Control: A Brief Survey
• Optimal Pointers for Joint Measurement of sigma-x and sigma-z via Homodyne Detection
• On exponential stabilization of N-level quantum angular momentum systems
• Tracking an open quantum system using a finite state machine: stability analysis
• Symmetries and physically realizable ensembles for open quantum systems
• Global stability criterion for a quantum feedback control process on a single qubit and exponential stability in case of perfect detection efficiency
• Quantum Trajectories for Squeezed Input Processes: Explicit Solutions
• Exposed-key weakness of $\alpha \eta$
• Adaptive Continuous Homodyne Phase Estimation Using Robust Fixed-Interval Smoothing
• Algebraic and algorithmic frameworks for optimized quantum measurements
• An Introduction to Quantum Filtering
• Guaranteed Cost LQG Control of Uncertain Linear Quantum Stochastic Systems
• Robust Smoothing for Estimating Optical Phase Varying as a Continuous Resonant Process
• Optimal nonlinear filtering of quantum state
• Feedback exponential stabilization of GHZ states of multi-qubit systems
• Optimal waveform estimation for classical and quantum systems via time-symmetric smoothing
• Parameter Estimation, Model Reduction and Quantum Filtering
• Robust Estimation of Optical Phase Varying as a Continuous Resonant Process
• Nonlinear effect on quantum control for two-level systems
• Robust Guaranteed-Cost Adaptive Quantum Phase Estimation
• Hybrid filtering for a class of nonlinear quantum systems subject to classical stochastic disturbances
• A posterior quantum dynamics for a continuous diffusion observation of a coherent channel
• The law of large numbers for quantum stochastic filtering and control of many particle systems
• Quantum filter processes driven by Markovian white noises have classical versions
• Adaptive Bayesian algorithm for achieving desired quantum transition
• Coherent LQG Control, Free-Carrier Oscillations, Optical Ising Machines and Pulsed OPO Dynamics
• On exponential stabilization of two-qubit systems
• QAM Adaptive Measurements Feedback Quantum Receiver Performance
• Improved mirror position estimation using resonant quantum smoothing
• Real-time Information, Uncertainty and Quantum Feedback Control
• Quantum feedback for measurement and control
• Improved Quantum Sensing by Spectral Design