Condensation versus Long-range Interaction: Competing Quantum Phases in Bosonic Optical Lattice Systems at Near-resonant Rydberg Dressing
arXiv:1509.06292 · doi:10.1103/PhysRevA.95.063608
Abstract
Recent experiments have shown that (quasi-)crystalline phases of Rydberg-dressed quantum many-body systems in optical lattices (OL) are within reach. Rydberg systems naturally possess strong long-range interactions due to the large polarizability of Rydberg atoms. Thus a wide range of quantum phases have been predicted, such as a devil's staircase of lattice incommensurate density wave phases as well as more exotic lattice supersolid order for bosonic systems, as considered in our work. Guided by results in the "frozen" gas limit, we study the ground state phase diagram at finite hopping amplitudes and in the vicinity of resonant Rydberg driving, while fully including the long-range tail of the van der Waals interaction. Simulations within real-space bosonic dynamical mean-field theory (RB-DMFT) yield an extension of the devil's staircase into the supersolid regime where the competition of condensation and interaction leads to a sequence of crystalline phases.
8 pages + 3 pages appendices + references, 5 figures + 4 figures in appendices
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Cited by in corpus (13)
- Coherent many-body spin dynamics in a long-range interacting Ising chain
- Dynamics of Hubbard Hamiltonians with the multiconfigurational time-dependent Hartree method for indistinguishable particles
- Supersolidity of lattice Bosons immersed in strongly correlated Rydberg dressed atoms
- Supersolid phases of ultracold bosons trapped in optical lattices dressed with Rydberg -states
- Supersolid phases of Rydberg-excited bosons on a triangular lattice
- Phase transitions of the coherently coupled two-component Bose gas in a square optical lattice
- Density-wave steady-state phase of dissipative ultracold fermions with nearest-neighbor interactions
- Quasiparticle spectra of supersolid lattice gases at near-resonant Rydberg-dressing
- Decay-dephasing-induced steady states in bosonic Rydberg-excited quantum gases in an optical lattice
- Topological Supersolidity of Dipolar Fermi Gases in a Spin-Dependent Optical Lattice
- Devil's staircases without particle-hole symmetry
- Resonant stroboscopic Rydberg dressing: electron-motion coupling and multi-body interactions
- Extended Bose-Hubbard models with Rydberg macrodimer dressing