Two-dimensional crystals of Rydberg excitations in a resonantly driven lattice gas

Abstract

The competition between resonant optical excitation of Rydberg states of atoms and their strong, long-range van der Waals interaction results in spatial ordering of Rydberg excitations in a two-dimensional lattice gas, as observed in a recent experiment of Schauß et al. [Nature 491, 87 (2012)]. Here we use semiclassical Monte Carlo simulations to obtain stationary states for hundreds of atoms in finite-size lattices. We show the formation of regular spatial structures of Rydberg excitations in a system of increasing size, and find highly sub-Poissonian distribution of the number of Rydberg excitations characterized by a large negative value of the Mandel Q parameter which is nearly independent of the system size.

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• Effective dynamics of strongly dissipative Rydberg gases
• Coherent versus incoherent excitation dynamics in dissipative many-body Rydberg systems
• Out-of-equilibrium evolution of kinetically constrained many-body quantum systems under purely dissipative dynamics
• From classical to quantum non-equilibrium dynamics of Rydberg excitations in optical lattices
• Wireless network control of interacting Rydberg atoms
• The effect of random positions for dipole hopping through a Rydberg gas
• Dynamical preparation of laser-excited anisotropic Rydberg crystals in 2D optical lattices
• Controlling the dipole blockade and ionization rate of Rydberg atoms in strong electric fields
• Filtering single atoms from Rydberg blockaded mesoscopic ensembles
• Self-similar non-equilibrium dynamics of a many-body system with power-law interactions
• Many-body dynamics of holes in a driven, dissipative spin chain of Rydberg superatoms
• Superradiance-induced multistability in driven Rydberg lattice gases
• Quantum melting of two-component Rydberg crystals
• On the adiabatic preparation of spatially-ordered Rydberg excitations of atoms in a one-dimensional optical lattice by laser frequency sweeps
• Spatial Patterns of Rydberg Excitations from Logarithmic Pair Interactions
• Non-classical correlations in a class of spin chains with long-range interactions and exactly solvable ground states
• Interaction-enhanced transmission imaging with Rydberg atoms
• Deterministic facilitated excitation of the weakly-driven atom in heteronuclear Rydberg atom pairs beyond antiblockade