Dynamic formation of Rydberg aggregates at off-resonant excitation

Abstract

The dynamics of a cloud of ultra-cold two-level atoms is studied at off-resonant laser driving to a Rydberg state. We find that resonant excitation channels lead to strongly peaked spatial correlations associated with the buildup of asymmetric excitation structures. These aggregates can extend over the entire ensemble volume, but are in general not localized relative to the system boundaries. The characteristic distances between neighboring excitations depend on the laser detuning and on the interaction potential. These properties lead to characteristic features in the spatial excitation density, the Mandel $Q$ parameter, and the total number of excitations. As an application an implementation of the three-atom CSWAP or Fredkin gate with Rydberg atoms is discussed. The gate not only exploits the Rydberg blockade, but also utilizes the special features of an asymmetric geometric arrangement of the three atoms. We show that continuous-wave off-resonant laser driving is sufficient to create the required spatial arrangement of atoms out of a homogeneous cloud.

8 pages, 7 figures

References in corpus (20)

• Observation of mesoscopic crystalline structures in a two-dimensional Rydberg gas
• Dipole blockade in a cold Rydberg atomic sample
• Entanglement growth in quench dynamics with variable range interactions
• Antiferromagnetic phase transition in a nonequilibrium lattice of Rydberg atoms
• Quantum critical behavior in strongly interacting Rydberg gases
• Many-body theory of excitation dynamics in an ultracold Rydberg gas
• Two-Stage Melting in Systems of Strongly Interacting Rydberg Atoms
• Steady-state crystallization of Rydberg excitations in an optically driven lattice gas
• Interaction enhanced imaging of individual atoms embedded in dense atomic gases
• Spatial correlations of Rydberg excitations in optically driven atomic ensembles
• Non-adiabatic motional effects and dissipative blockade for Rydberg atoms excited from optical lattices or microtraps
• Adiabatic Formation of Rydberg Crystals with Chirped Laser Pulses
• Dislocation-mediated melting of one-dimensional Rydberg crystals
• Non-adiabatic preparation of spin crystals with ultracold polar molecules
• Stark-tuned Förster resonance and dipole blockade for two to five cold Rydberg atoms: Monte Carlo simulations for various spatial configurations
• A hybrid model for Rydberg gases including exact two-body correlations
• Finite-size effects in strongly interacting Rydberg gases
• Rydberg crystallization detection by statistical means
• Rydberg-Rydberg interaction profile from the excitation dynamics of ultracold atoms in lattices
• Spectral properties of finite laser-driven lattices of ultracold Rydberg atoms

Cited by in corpus (39)

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• Out-of-equilibrium structures in strongly interacting Rydberg gases with dissipation
• High-fidelity Rydberg quantum gate via a two-atom dark state
• Localization phenomena in interacting Rydberg lattice gases with position disorder
• Bistability vs. Metastability in Driven Dissipative Rydberg Gases
• Finite-range interacting Ising quantum magnets with Rydberg atoms in optical lattices - From Rydberg superatoms to crystallization
• Experimental observation of controllable kinetic constraints in a cold atomic gas
• Quantum simulation of energy transport with embedded Rydberg aggregates
• Universality in driven open quantum matter
• Binding potentials and interaction gates between microwave-dressed Rydberg atoms
• Phase diagram and self-organising dynamics in a strongly-interacting thermal Rydberg ensemble
• Observation of Rydberg-atom macrodimers: micrometer-sized diatomic molecules
• Ergodicity breaking from Rydberg clusters in a driven-dissipative many-body system
• Localization in spin chains with facilitation constraints and disordered interactions
• Dissipation induced dipole blockade and anti-blockade in driven Rydberg systems
• Coherent versus incoherent excitation dynamics in dissipative many-body Rydberg systems
• Phase-Imprinting of Bose-Einstein Condensates with Rydberg Impurities
• Vibrational dressing in Kinetically Constrained Rydberg Spin Systems
• Black-body radiation induced facilitated excitation of Rydberg atoms in optical tweezers
• Rydberg Aggregates
• Epidemic dynamics in open quantum spin systems
• Seeded excitation avalanches in off-resonantly driven Rydberg gases
• Hydrodynamic stabilization of self-organized criticality in a driven Rydberg gas
• Quantum slush state in Rydberg atom arrays
• Control of spatial correlations between Rydberg excitations using rotary echo
• Rydberg Macrodimers: Diatomic molecules on the micrometer scale
• Atomic loss and gain as a resource for non-equilibrium phase transitions in optical lattices
• Quantum signature for laser-driven correlated excitation of Rydberg atoms
• Controlling excitation avalanches in driven Rydberg gases
• Quench dynamics of a dissipative Rydberg gas in the classical and quantum regime
• mm-wave Rydberg-Rydberg resonances as a witness of intermolecular coupling in the arrested relaxation of a molecular ultracold plasma
• Microwave-coupled optical bistability in driven and interacting Rydberg gases
• Role of mechanical effects on the excitation spectra of microwave-dressed Rydberg states in a cold atomic cloud
• Dynamical control in a prethermalized molecular ultracold plasma: Local dissipation drives global relaxation
• Detecting an exciton crystal by statistical means
• Modeling Rydberg Gases using Random Sequential Adsorption on Random Graphs
• Ultrafast light-induced long range antiferromagnetic correlations in paramagnets