Improving Metrology with Quantum Scrambling
arXiv:2212.13880 · doi:10.1126/science.adg9500
Abstract
Quantum scrambling describes the spreading of local information into many degrees of freedom in quantum systems. This provides the conceptual connection among diverse phenomena ranging from thermalizing quantum dynamics to models of black holes. Here we experimentally probe the exponential scrambling of a multi-particle system near a bistable point in phase space and utilize it for entanglement-enhanced metrology. We use a time-reversal protocol to observe a simultaneous exponential growth of both the metrological gain and the out-of-time-order correlator, thereby experimentally verifying the relation between quantum metrology and quantum information scrambling. Our experiments demonstrate that fast-scrambling dynamics capable of exponentially fast entanglement generation are useful for practical metrology, resulting in 6.8(4) dB gain beyond the Standard Quantum Limit.
5 figures
References in corpus (3)
Cited by in corpus (40)
- Entanglement-enhanced quantum metrology: from standard quantum limit to Heisenberg limit
- Out-of-equilibrium dynamics of quantum many-body systems with long-range interactions
- Combining critical and quantum metrology
- Super-radiant and Sub-radiant Cavity Scattering by Atom Arrays
- Quantum coarsening and collective dynamics on a programmable simulator
- Quasiprobabilities in quantum thermodynamics and many-body systems
- Spectral kissing and its dynamical consequences in the squeeze-driven Kerr oscillator
- Observation of quantum thermalization restricted to Hilbert space fragments
- Optimal protocols for quantum metrology with noisy measurements
- Realization of versatile and effective quantum metrology using a single bosonic mode
- Uncertain Quantum Critical Metrology: From Single to Multi Parameter Sensing
- Quantum delocalization on correlation landscape: The key to exponentially fast multipartite entanglement generation
- Information scrambling -- a quantum thermodynamic perspective
- Spin squeezing in internal bosonic Josephson junctions via enhanced shortcuts to adiabaticity
- Spin Squeezing with Arbitrary Quadratic Collective-Spin Interaction
- Photon-mediated dipole-dipole interactions as a resource for quantum science and technology in cold atoms
- Generating scalable graph states in an atom-nanophotonic interface
- Covariant Quantum Error-Correcting Codes with Metrological Entanglement Advantage
- Optimizing one-axis twists for variational Bayesian quantum metrology
- Fast and Accurate Greenberger-Horne-Zeilinger Encoding Using All-to-all Interactions
- Universal Control of Symmetric States Using Spin Squeezing
- Counterdiabatic Route to Entanglement Steering and Dynamical Freezing in the Floquet Lipkin-Meshkov-Glick Model
- Control and amplification of Bloch oscillations via photon-mediated interactions
- Cavity dark mode mediated by atom array without atomic scattering loss
- Temporal fluctuations of correlators in integrable and chaotic quantum systems
- Degeneracy in excited-state quantum phase transitions of two-level bosonic models and its influence on system dynamics
- An operational definition of quantum information scrambling
- Enhancing Dynamic Range of Sub-Quantum-Limit Measurements via Quantum Deamplification
- Error-resilient Reversal of Quantum Chaotic Dynamics Enabled by Scramblons
- Symmetry: a fundamental resource for quantum coherence and metrology
- Quantum Metrology via Floquet-Engineered Two-axis Twisting and Turn Dynamics
- Critical Quantum Sensing: a tutorial on parameter estimation near quantum phase transitions
- Quantum trails and memory effects in the phase space of chaotic quantum systems
- Quantum sensing with ultracold simulators in lattice and ensemble systems: a review
- Conditional Entanglement Amplification via Non-Hermitian Superradiant Dynamics
- Non-stabilizerness and entanglement from cat-state injection
- Approaching the double-Heisenberg scaling sensitivity in the Tavis-Cummings model
- Learning the structure of any Hamiltonian from minimal assumptions
- Trade-off relation between integrated metrological gain and local dissipation in magnetic-field sensing by quantum spin ensemble
- Superradiant Interactions for Relic Detection with Entangled Nuclear Spins