Supersolid phases of ultracold bosons trapped in optical lattices dressed with Rydberg $p$-states

Abstract

Engineering quantum phases with spontaneously broken symmetries is a major goal of research in different fields. Trapped ultracold Rydberg-excited atoms in optical lattices are a promising platform for realizing quantum phases with broken lattice translational symmetry since they are interacting over distances larger than the lattice constant. Although numerous theoretical works on trapped Rydberg-excited gases have predicted such phases, in particular density wave or supersolid phases, their experimental observation proves to be difficult due to challenges such as scattering processes and the limited experimentally achievable coupling strength. Most of these previous studies have focused on isotropically interacting gases dressed with Rydberg $s$-states, while the effect of anisotropic interactions due to Rydberg-excited $p$-states in trapped quantum gases remains much less investigated. Additionally, it was shown that the excitation scheme used to excite Rydberg $p$-states possesses advantages regarding achievable coupling strengths and limitation of scattering processes compared to its $s$-state counterpart, which makes the investigation of Rydberg $p$-state dressed quantum gases even more interesting. In the present work, we study the extended, two-component Bose-Hubbard model, realized with a bosonic quantum gas with Rydberg-excited $p$-states trapped in an optical lattice, within Gutzwiller mean-field theory. We compute the ground state phase diagram and investigate its different regimes. By comparison to the phase diagram of the isotropic case, we find the anisotropic interaction to be more advantageous for the observation of supersolid phases.

References in corpus (15)

• Many-Body Physics with Ultracold Gases
• Quantum phase transition from a superfluid to a Mott insulator in a gas of ultracold atoms
• Quantum simulation and computing with Rydberg-interacting qubits
• Dynamical crystallization in a low-dimensional Rydberg gas
• Dissipation induced Tonks-Girardeau gas in an optical lattice
• Phase diagram for a Bose-Einstein condensate moving in an optical lattice
• Two-Stage Melting in Systems of Strongly Interacting Rydberg Atoms
• Single-Atom Addressing in Microtraps for Quantum-State Engineering using Rydberg Atoms
• Realization of a density-dependent Peierls phase in a synthetic, spin-orbit coupled Rydberg system
• Complete devil's staircase and crystal--superfluid transitions in a dipolar XXZ spin chain: A trapped ion quantum simulation
• Raman Sideband Cooling in Optical Tweezer Arrays for Rydberg Dressing
• Single-photon cesium Rydberg excitation spectroscopy using 318.6-nm UV laser and room-temperature vapor cell
• Scanning electron microscopy of Rydberg-excited Bose-Einstein condensates
• Supersolid phases of Rydberg-excited bosons on a triangular lattice
• Electronic sideband locking of 318.6nm UV laser to an ultrastable optical cavity with a wide continuously tunable range

Cited by in corpus (3)

• Systematic Analysis of Crystalline Phases in Bosonic Lattice Models with Algebraically Decaying Density-Density Interactions
• Order-by-disorder and emergent Kosterlitz-Thouless phase in triangular Rydberg array
• Finite temperature phases and excitations of bosons on a square lattice: A cluster mean field study