Persistent non-Gaussian correlations in out-of-equilibrium Rydberg atom arrays
arXiv:2306.12210 · doi:10.1103/PRXQuantum.4.040339
Abstract
Gaussian correlations emerge in a large class of many-body quantum systems quenched out of equilibrium, as demonstrated in recent experiments on coupled one-dimensional superfluids [Schweigler et al., Nature Physics 17, 559 (2021)]. Here, we present a mechanism by which an initial state of a Rydberg atom array can retain persistent non-Gaussian correlations following a global quench. This mechanism is based on an effective kinetic blockade rooted in the ground state symmetry of the system, which prevents thermalizing dynamics under the quench Hamiltonian. We propose how to observe this effect with Rydberg atom experiments and we demonstrate its resilience against several types of experimental errors. These long-lived non-Gaussian states may have practical applications as quantum memories or stable resources for quantum-information protocols due to the protected non-Gaussianity away from equilibrium.
arXiv comment11 pages, 8 figures
References in corpus (45)
- Many-Body Physics with Ultracold Gases
- Quantum information with continuous variables
- Nonequilibrium dynamics of closed interacting quantum systems
- Probing many-body dynamics on a 51-atom quantum simulator
- Entanglement Spectrum as a Generalization of Entanglement Entropy: Identification of Topological Order in Non-Abelian Fractional Quantum Hall Effect States
- Many-Body Physics with Individually-Controlled Rydberg Atoms
- Calculation of reduced density matrices from correlation functions
- Equilibration, thermalisation, and the emergence of statistical mechanics in closed quantum systems
- Quantum many-body scars
- Universal Quantum Computation with Continuous-Variable Cluster States
- Realizing quantum Ising models in tunable two-dimensional arrays of single Rydberg atoms
- Generation and manipulation of Schrödinger cat states in Rydberg atom arrays
- Quantum Many-Body Scars and Weak Breaking of Ergodicity
- Quantum Kibble-Zurek mechanism and critical dynamics on a programmable Rydberg simulator
- Quantum Many-Body Scars and Hilbert Space Fragmentation: A Review of Exact Results
- Exact relaxation in a class of non-equilibrium quantum lattice systems
- Positive Wigner functions render classical simulation of quantum computation efficient
- Real time confinement following a quantum quench to a non-integrable model
- A No-Go Theorem for Gaussian Quantum Error Correction
- Non-Gaussian Quantum States and Where to Find Them
- On solving quantum many-body problems by experiment
- Competing density-wave orders in a one-dimensional hard-boson model
- Quantum Many-Body Scars: A Quasiparticle Perspective
- Quantum memories at finite temperature
- Driving non-Gaussian to Gaussian states with linear optics
- A quantum central limit theorem for non-equilibrium systems: Exact local relaxation of correlated states
- Interacting Fibonacci anyons in a Rydberg gas
- Non-Gaussian quantum states of a multimode light field
- Many-body spin interactions and the ground state of a dense Rydberg lattice gas
- Conversion of Gaussian states to non-Gaussian states using photon-number-resolving detectors
- Numerical study of the chiral quantum phase transition in one spatial dimension
- Entanglement and Wigner function negativity of multimode non-Gaussian states
- Experimental distillation of squeezing from non-Gaussian quantum states
- Floating phase versus chiral transition in a 1D hard-boson model
- Equilibration via Gaussification in fermionic lattice systems
- Decay and recurrence of non-Gaussian correlations in a quantum many-body system
- All pure fermionic non-Gaussian states are magic states for matchgate computations
- Microscopic characterization of Ising conformal field theory in Rydberg chains
- Optimal free descriptions of many-body theories
- Emergent symmetries and slow quantum dynamics in a Rydberg-atom chain with confinement
- Free-fermion descriptions of parafermion chains and string-net models
- Quantifying the effect of interactions in quantum many-body systems
- Mechanisms for the emergence of Gaussian correlations
- Quantifying fermionic interactions from the violation of Wick's theorem
- Direct detection of quantum non-Gaussian light from a dispersively coupled single atom