Atomic loss and gain as a resource for non-equilibrium phase transitions in optical lattices

Abstract

Recent breakthroughs in the experimental manipulation of strongly interacting atomic Rydberg gases in lattice potentials have opened a new avenue for the study of many-body phenomena. Considerable efforts are currently being undertaken to achieve clean experimental settings that show a minimal amount of noise and disorder and are close to zero temperature. A complementary direction investigates the interplay between coherent and dissipative processes. Recent experiments have revealed a first glimpse into the emergence of a rich non-equilibrium behavior stemming from the competition of laser excitation, strong interactions and radiative decay of Rydberg atoms. The aim of the present theoretical work is to show that local incoherent loss and gain of atoms can in fact be the source of interesting out-of-equilibrium dynamics. This perspective opens new paths for the exploration of non-equilibrium critical phenomena and, more generally, phase transitions, some of which so far have been rather difficult to study. To demonstrate the richness of the encountered dynamical behavior we consider here three examples. The first two feature local atom loss and gain together with an incoherent excitation of Rydberg states. In this setting either a continuous or a discontinuous phase transition emerges with the former being reminiscent of genuine non-equilibrium transitions of stochastic processes with multiple absorbing states. The third example considers the regime of coherent laser excitation. Here the many-body dynamics is dominated by an equilibrium transition of the "model A" universality class.

References in corpus (55)

• Many-Body Physics with Ultracold Gases
• Nonequilibrium Critical Phenomena and Phase Transitions into Absorbing States
• Dipole Blockade and Quantum Information Processing in Mesoscopic Atomic Ensembles
• Observation of Rydberg blockade between two atoms
• Observation of collective excitation of two individual atoms in the Rydberg blockade regime
• Universality classes in nonequilibrium lattice systems
• Entanglement of two individual neutral atoms using Rydberg blockade
• Observation of mesoscopic crystalline structures in a two-dimensional Rydberg gas
• Single-atom trapping in holographic 2D arrays of microtraps with arbitrary geometries
• Coherent Excitation Transfer in a Spin Chain of Three Rydberg Atoms
• Directed percolation criticality in turbulent liquid crystals
• Cooperative non-equilibrium phase transition in a dilute Rydberg ensemble
• A Rydberg blockade CNOT gate and entanglement in a 2D array of neutral atom qubits
• Observation of coherent many-body Rabi oscillations
• An experimental and theoretical guide to strongly interacting Rydberg gases
• Antiferromagnetic phase transition in a nonequilibrium lattice of Rydberg atoms
• Quantum critical behavior in strongly interacting Rydberg gases
• Collective quantum jumps of Rydberg atoms
• Variational principle for steady states of dissipative quantum many-body systems
• Photon solid phases in driven arrays of nonlinearly coupled cavities
• Universal non-equilibrium properties of dissipative Rydberg gases
• Dynamical phases and intermittency of the dissipative quantum Ising model
• Full counting statistics and phase diagram of a dissipative Rydberg gas
• Strongly correlated growth of Rydberg aggregates in a vapor cell
• Preparation of entangled and antiferromagnetic states by dissipative Rydberg pumping
• Full counting statistics of laser excited Rydberg aggregates in a one-dimensional geometry
• Microscopy of a scalable superatom
• Kinetic constraints, hierarchical relaxation and onset of glassiness in strongly interacting and dissipative Rydberg gases
• Demonstration of a strong Rydberg blockade in three-atom systems with anisotropic interactions
• Out-of-equilibrium structures in strongly interacting Rydberg gases with dissipation
• Generalized Scaling for Models with Multiple Absorbing States
• Experimental realization of directed percolation criticality in turbulent liquid crystals
• Thermodynamic Equilibrium as a Symmetry of the Schwinger-Keldysh Action
• Two-Stage Melting in Systems of Strongly Interacting Rydberg Atoms
• Coherence and Rydberg blockade of atomic ensemble qubits
• Symmetries of generating functionals of Langevin processes with colored multiplicative noise
• On possible experimental realizations of directed percolation
• Steady-state crystallization of Rydberg excitations in an optically driven lattice gas
• Quantum Fluctuation Relations for the Lindblad Master Equation
• Antiferromagnetic long-range order in dissipative Rydberg lattices
• Binding potentials and interaction gates between microwave-dressed Rydberg atoms
• Investigation of dephasing rates in an interacting Rydberg gas
• Thermalization of a strongly interacting closed spin system: From coherent many-body dynamics to a Fokker-Planck equation
• Self-Consistent Projection Operator Theory for Quantum Many-Body Systems
• Spatial correlations of one dimensional driven-dissipative systems of Rydberg atoms
• Dynamic formation of Rydberg aggregates at off-resonant excitation
• Non-equilibrium universality in the dynamics of dissipative cold atomic gases
• Effective dynamics of strongly dissipative Rydberg gases
• Three-body bound states in dipole-dipole interacting Rydberg atoms
• From classical to quantum non-equilibrium dynamics of Rydberg excitations in optical lattices
• Magnetic monopoles and synthetic spin-orbit coupling in Rydberg macrodimers
• A hybrid model for Rydberg gases including exact two-body correlations
• Patterned Rydberg excitation and ionisation with a spatial light modulator
• Equilibration of quantum hard rods in one dimension
• Crystalline structures and frustration in a two-component Rydberg gas

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• Role of interactions in a dissipative many-body localized system
• Quantum-optical magnets with competing short- and long-range interactions: Rydberg-dressed spin lattice in an optical cavity
• Emergent kinetic constraints in open quantum systems
• Evidence of a critical phase transition in a purely temporal dynamics with long-delayed feedback
• Quantum non-equilibrium dynamics of Rydberg gases in the presence of dephasing noise of different strengths