Quantum phase transitions of polar molecules in bilayer systems

Abstract

We investigate the quantum phase transitions of bosonic polar molecules in a two-dimensional double layer system. We show that an interlayer bound state of dipoles (dimers) can be formed when the dipole strength is above a critical value, leading to a zero-energy resonance in the interlayer s-wave scattering channel. In the positive detuning side of the resonance, the strong repulsive interlayer pseudopotential can drive the system into a maximally entangled state, where the wave function is a superposition of two states that have all molecules in one layer and none in the other. We discuss how the zero-energy resonance, dimer states, and the maximally entangled state can be measured in time-of-flight experiments.

Minor corrections

References in corpus (22)

• Quantum phase transition from a superfluid to a Mott insulator in a gas of ultracold atoms
• Cold bosonic atoms in optical lattices
• A toolbox for lattice spin models with polar molecules
• Multi-particle entanglement of hot trapped ions
• Berezinskii-Kosterlitz-Thouless Crossover in a Trapped Atomic Gas
• Bose-Einstein condensation in trapped dipolar gases
• Quantum phases of dipolar bosons in optical lattices
• Roton-maxon spectrum and stability of trapped dipolar condensates
• Observation of dipole-dipole interaction in a degenerate quantum gas
• Quantum Superposition States of Bose-Einstein Condensates
• Many particle entanglement in two-component Bose-Einstein Condensates
• Interference of an array of independent Bose-Einstein condensates
• Quantum magnetism with multicomponent polar molecules in an optical lattice
• Production of Ultracold, Polar RbCs* Molecules via Photoassociation
• Exact hydrodynamics of a trapped dipolar Bose-Einstein condensate
• Quantum fluids of self-assembled chains of polar molecules
• Quantum phase transition in an atomic Bose gas with a Feshbach resonance
• Anisotropic pseudo-potential for polarized dilute quantum gases
• Creating maximally entangled atomic states in a Bose-Einstein condensate
• Coulomb Drag between Quantum Wires
• Calibrating dipolar interaction in an atomic condensate
• Pseudospin ferromagnetism in double-quantum-wire systems

Cited by in corpus (46)

• The physics of dipolar bosonic quantum gases
• Ultracold Dipolar Gases in Optical Lattices
• Comparing and contrasting nuclei and cold atomic gases
• Three-Body Interacting Bosons in Free Space
• Pair-supersolid phase in a bilayer system of dipolar lattice bosons
• Mesoscopic ensembles of polar bosons in triple-well potentials
• Superfluidity and dimerization in a multilayered system of fermionic polar molecules
• Mott-insulator phases of non-locally coupled 1D dipolar Bose gases
• BCS-BEC Crossover in Bilayers of Cold Fermionic Polar Molecules
• Single-particle vs. pair superfluidity in a bilayer system of dipolar bosons
• Analytic Harmonic Approach to the N-body problem
• Bound States and Universality in Layers of Cold Polar Molecules
• Pseudo-potential of a power-law decaying interaction in two-dimensional systems
• Density Waves in Layered Systems with Fermionic Polar Molecules
• Correlation effects and collective excitations in bosonic bilayers: role of quantum statistics, superfluidity and dimerization transition
• Few-Body Bound Complexes in One-dimensional Dipolar Gases and Non-Destructive Optical Detection
• Spontaneous interlayer superfluidity in bilayer systems of cold polar molecules
• Bound Dimers in Bilayers of Cold Polar Molecules
• Phases of dipolar bosons in a bilayer geometry
• Quantum Many-Body Scars from Einstein-Podolsky-Rosen States in Bilayer Systems
• Compressibility, zero sound, and effective mass of a fermionic dipolar gas at finite temperature
• Bound states of Dipolar Bosons in One-dimensional Systems
• An effective many-body theory for strongly interacting polar molecules
• Few-body bound states of two-dimensional bosons
• Structure and melting behavior of classical bilayer crystals of dipoles
• Quantum phase diagrams of fermionic dipolar gases for an arbitrary orientation of dipole moment in a planar array of 1D tubes
• Interaction-induced first order correlation between spatially-separated 1D dipolar fermions
• Stability and excitations of a bilayer of strongly correlated dipolar Bosons
• Collective phenomena in quasi-two-dimensional fermionic polar molecules: band renormalization and excitons
• Large Chern Number Topological Superfluids in Coupled Layer System
• Dimers, Effective Interactions, and Pauli Blocking Effects in a Bilayer of Cold Fermionic Polar Molecules
• Field-induced long-lived supermolecules
• Strongly dipolar gases in a one-dimensional lattice: Bloch oscillations and matter-wave localization
• Optical probing in a bilayer dark-bright condensate system
• Bilayer crystals of trapped ions for quantum information processing
• Dipoles on a Two-leg Ladder
• Effects of Fermion Flavor on Exciton Condensation in Double Layer Systems
• The Multi-component Correlated Basis Function Method and its Application to Multilayered Dipolar Bose Gases
• Topological Excitonic Superfluids in Three Dimensions
• Observation of a Bilayer Superfluid with Interlayer Coherence
• Phase Equilibrium of Binary Mixtures in Mixed Dimensions
• Atom-Molecule Superradiance and Entanglement with Cavity-Mediated Three-Body Interactions
• Density engineering via inter-condensate dipole-dipole interactions
• Phase Diagram of a Spin-Orbit Coupled Fermi Gases in a Bilayer Optical Lattice
• Trapping polar molecules by surface acoustic waves
• Quantum Monte Carlo study of few- and many-body Bose systems in one and two dimensions