Identifying a bath-induced Bose liquid in interacting spin-boson models

Abstract

We study the ground state phase diagram of a one-dimensional hard-core bosonic model with nearest-neighbor interactions (XXZ model) where every site is coupled Ohmically to an independent but identical reservoir, hereby generalizing spin-boson models to interacting spin-boson systems. We show that a bath-induced Bose metal phase can occur in the ground state phase diagram away from half filling. This phase is compressible, gapless, and conducting but not superfluid. At haf-filling, only a Luttinger liquid and a charge density wave are found. The phase transition between them is of Kosterlitz-Thouless type where the Luttinger parameter takes a non-universal value.The applied quantum Monte Carlo method can be used for all open bosonic and unfrustrated spin systems, regardless of their dimension, filling factor and spectrum of the dissipation as long as the quantum system couples to the bath via the density operators.

References in corpus (16)

• The numerical renormalization group method for quantum impurity systems
• Single-Atom Resolved Fluorescence Imaging of an Atomic Mott Insulator
• Quantum States and Phases in Driven Open Quantum Systems with Cold Atoms
• An Open-System Quantum Simulator with Trapped Ions
• Atomic three-body loss as a dynamical three-body interaction
• Experimental multiparticle entanglement dynamics induced by decoherence
• Quantum phase transition in a far from equilibrium steady state of XY spin chain
• Finite quantum dissipation: the challenge of obtaining specific heat
• Interaction-induced impeding of decoherence and anomalous diffusion
• Diagrammatic Determinantal methods: projective schemes and applications to the Hubbard-Holstein model
• Phase diagram and critical exponents of a dissipative Ising spin chain in a transverse magnetic field
• Dissipation-driven quantum phase transitions in a Tomonaga-Luttinger liquid electrostatically coupled to a metallic gate
• A cluster algorithm for resistively shunted Josephson junctions
• Effect of Electron-Phonon Interaction Range for a Half-Filled Band in One Dimension
• The quantum phase transition and correlations in the multi-spin-boson model
• Three distinct types of quantum phase transitions in a (2+1)-dimensional array of dissipative Josephson junctions