Localization induced by spatially uncorrelated subohmic baths in one dimension
arXiv:2307.07989 · doi:10.1103/PhysRevB.108.205138
Abstract
We study an incommensurate XXZ spin chain coupled to a collection of local harmonic baths. At zero temperature, by varying the strength of the coupling to the bath the chain undergoes a quantum phase transition between a Luttinger liquid phase and a spin density wave (SDW). As opposed to the standard mechanism, the SDW emerges in the absence of the opening of a gap, but it is due to ``fractional excitations" induced by the bath. We also show, by computing the DC conductivity, that the system is insulating in the presence of a subohmic bath. We interpret this phenomenon as localization induced by the bath à la Caldeira and Leggett.
arXiv comment13 pages, 5 figures
References in corpus (24)
- Measurement-Induced Phase Transitions in the Dynamics of Entanglement
- Quantum Zeno Effect and the Many-body Entanglement Transition
- Theory of the phase transition in random unitary circuits with measurements
- Measurement-induced criticality in random quantum circuits
- Unitary-projective entanglement dynamics
- Critical properties of the measurement-induced transition in random quantum circuits
- Entanglement in a fermion chain under continuous monitoring
- Long-range interacting quantum systems
- Entanglement transition from variable-strength weak measurements
- Measurement-induced criticality in (2+1)-d hybrid quantum circuits
- Continuous symmetry breaking and a new universality class in 1D long-range interacting quantum systems
- A variational description of the quantum phase transition in the sub-Ohmic spin-boson model
- Nonuniversal Entanglement Level Statistics in Projection-driven Quantum Circuits
- Bath-induced Zeno localization in driven many-body quantum systems
- Dissipation-driven quantum phase transitions in a Tomonaga-Luttinger liquid electrostatically coupled to a metallic gate
- Weak Versus Strong Disorder Superfluid-Bose Glass Transition in One Dimension
- transitions in classical and quantum long-range systems
- Dissipation-induced phase transitions in superconducting wires
- Dissipative Effects on the Superfluid to Insulator Transition in Mixed-dimensional Optical Lattices
- Self-consistent harmonic approximation with non-local couplings
- Bath induced phase transition in a Luttinger liquid
- Transconducting transition for a dynamic boundary coupled to several Luttinger liquids
- Phase transitions for a collective coordinate coupled to Luttinger liquids
- Annealed averages in spin and matrix models