Robust quantum sensing in strongly interacting systems with many-body scars
arXiv:2101.04670 · doi:10.1103/PRXQuantum.2.020330
Abstract
In most quantum sensing schemes, interactions between the constituent particles of the sensor are expected to lead to thermalisation and degraded sensitivity. However, recent theoretical and experimental work has shown that the phenomenon of quantum many-body scarring can slow down, or even prevent thermalisation. We show that scarring can be exploited for quantum sensing that is robust against certain strong interactions. In the ideal case of perfect scars with harmonic energy gaps, the optimal sensing time can diverge despite the strong interactions. We demonstrate the idea with two examples: a spin-1 model with Dzyaloshinskii-Moriya interaction, and a spin-1/2 mixed-field Ising model. We also briefly discuss some non-ideal perturbations, and the addition of periodic controls to suppress their effect on sensing.
arXiv comment8 + 4 pages
References in corpus (51)
- Quantum sensing
- Advances in Quantum Metrology
- Chaos and Quantum Thermalization
- Thermalization and its mechanism for generic isolated quantum systems
- Quantum-enhanced measurements: beating the standard quantum limit
- Probing many-body dynamics on a 51-atom quantum simulator
- From Quantum Chaos and Eigenstate Thermalization to Statistical Mechanics and Thermodynamics
- High-sensitivity diamond magnetometer with nanoscale resolution
- Optical Magnetometry
- Quantum metrology with nonclassical states of atomic ensembles
- Dynamical suppression of decoherence in two-state quantum systems
- Sensing electric fields using single diamond spins
- Enhancing the sensitivity of the LIGO gravitational wave detector by using squeezed states of light
- On the Improvement of Frequency Stardards with Quantum Entanglement
- Quantum many-body scars
- General framework for estimating the ultimate precision limit in noisy quantum-enhanced metrology
- Quantum spin squeezing
- Universal dynamical decoupling of a single solid-state spin from a spin bath
- The elusive Heisenberg limit in quantum enhanced metrology
- Quantum scarred eigenstates in a Rydberg atom chain: entanglement, breakdown of thermalization, and stability to perturbations
- A Quantum Rosetta Stone for Interferometry
- Controlling many-body dynamics with driven quantum scars in Rydberg atom arrays
- Emergent SU(2) dynamics and perfect quantum many-body scars
- Effect of Rare Fluctuations on the Thermalization of Isolated Quantum Systems
- Entanglement of Exact Excited States of AKLT Models: Exact Results, Many-Body Scars and the Violation of Strong ETH
- Periodic orbits, entanglement and quantum many-body scars in constrained models: matrix product state approach
- Systematic Construction of Counterexamples to the Eigenstate Thermalization Hypothesis
- Weak Ergodicity Breaking and Quantum Many-Body Scars in Spin-1 XY Magnets
- Exact Excited States of Non-Integrable Models
- Signatures of integrability in the dynamics of Rydberg-blockaded chains
- Noisy metrology beyond the standard quantum limit
- Quantum Many-Body Scar States with Emergent Kinetic Constraints and Finite-Entanglement Revivals
- Unified structure for exact towers of scar states in the AKLT and other models
- Onsager's Scars in Disordered Spin Chains
- Many-body spin interactions and the ground state of a dense Rydberg lattice gas
- Eta-pairing states as true scars in an extended Hubbard Model
- Quantum Metrology with Strongly Interacting Spin Systems
- Disorder-Free Localization and Many-Body Quantum Scars from Magnetic Frustration
- Universal time scaling for Hamiltonian parameter estimation
- Systematic construction of scarred many-body dynamics in 1D lattice models
- Quantum scars as embeddings of weakly "broken" Lie algebra representations
- Topological many-body scar states in dimensions 1, 2, and 3
- Slow quantum thermalization and many-body revivals from mixed phase space
- Flat Band Quantum Scar
- High-density quantum sensing with dissipative first order transitions
- Experimental Demonstration of Adaptive Quantum State Estimation
- Slow Thermalization of Exact Quantum Many-Body Scar States Under Perturbations
- Adequacy of Si:P Chains as Fermi-Hubbard Simulators
- Robust entanglement-based magnetic field sensor beyond the standard quantum limit
- Quantum metrology including state preparation and readout times
- Enhancing the effect of quantum many-body scars on dynamics by minimising the effective dimension
Cited by in corpus (42)
- Quantum Many-Body Scars and Hilbert Space Fragmentation: A Review of Exact Results
- Quantum Many-Body Scars: A Quasiparticle Perspective
- Observation of many-body scarring in a Bose--Hubbard quantum simulator
- Many-body Hilbert space scarring on a superconducting processor
- Review: Quantum Metrology and Sensing with Many-Body Systems
- Catching Bethe phantoms and quantum many-body scars: Long-lived spin-helix states in Heisenberg magnets
- Weak Ergodicity Breaking in the Schwinger Model
- Controlling entanglement at absorbing state phase transitions in random circuits
- Extensive multipartite entanglement from su(2) quantum many-body scars
- Purification Timescales in Monitored Fermions
- Entanglement enhanced metrology with quantum many-body scars
- Superdiffusive Energy Transport in Kinetically Constrained Models
- Quantum Information Scrambling in Quantum Many-body Scarred Systems
- Stark localization as a resource for weak-field sensing with super-Heisenberg precision
- Quantum Many-Body Scars from Einstein-Podolsky-Rosen States in Bilayer Systems
- Exhaustive Characterization of Quantum Many-Body Scars using Commutant Algebras
- Embedding Quantum Many-Body Scars into Decoherence-Free Subspaces
- Squeezing Quantum Many-Body Scars
- Quantum Many-Body Scars in Dual-Unitary Circuits
- Bridging quantum criticality via many-body scarring
- Theory of robust quantum many-body scars in long-range interacting systems
- Quantum scars in spin-1/2 isotropic Heisenberg clusters
- Tower of quantum scars in a partially many-body localized system
- Theory of metastable states in many-body quantum systems
- Covariant Quantum Error-Correcting Codes with Metrological Entanglement Advantage
- Heisenberg-limited metrology with perturbing interactions
- Extreme many-body scarring in a quantum spin chain via weak dynamical constraints
- Growing Schrödinger's cat states by local unitary time evolution of product states
- Adiabatic time evolution of highly excited states
- Stable dynamic helix state in the nonintegrable XXZ Heisenberg model
- Robust Finite-Temperature Many-Body Scarring on a Quantum Computer
- Quantum sensing with ultracold simulators in lattice and ensemble systems: a review
- Embedding semiclassical periodic orbits into chaotic many-body Hamiltonians
- Quantum Scar States in Coupled Random Graph Models
- Hilbert subspace ergodicity
- ScarFinder: a detector of optimal scar trajectories in quantum many-body dynamics
- Experimental protocol for observing single quantum many-body scars with transmon qubits
- Real space thermalization of locally driven quantum magnets
- Quantum many-body scarring from Kramers-Wannier duality
- Quantum Complexity in Rule-Based Constrained Many-Body Models: Scars, Fragmentation, and Chaos
- Stabilization of Granovskii-Zhedanov scars of the XYZ quantum spin chain via non-Hermitian spin relaxation
- Tilt-Induced Localization in Interacting Bose-Einstein Condensates for Quantum Sensing