Quantum Spin Dimers from Chiral Dissipation in Cold-Atom Chains

Abstract

We consider the non-equilibrium dynamics of a driven dissipative spin chain with chiral coupling to a 1D bosonic bath, and its atomic implementation with a two-species mixture of cold quantum gases. The reservoir is represented by a spin-orbit coupled 1D quasi-condensate of atoms in a magnetized phase, while the spins are identified with motional states of a separate species of atoms in an optical lattice. The chirality of reservoir excitations allows the spins to couple differently to left and right moving modes, which in our atomic setup can be tuned from bidirectional to purely unidirectional. Remarkably, this leads to a pure steady state in which pairs of neighboring spins form dimers that decouple from the remainder of the chain. Our results also apply to current experiments with two-level emitters coupled to photonic waveguides.

Replaced by published version (6 pages + 8 pages supplemental material)

References in corpus (18)

• Quantum States and Phases in Driven Open Quantum Systems with Cold Atoms
• An Open-System Quantum Simulator with Trapped Ions
• Spin-Injection Spectroscopy of a Spin-Orbit Coupled Fermi Gas
• Quantum trajectories and open many-body quantum systems
• Chiral nanophotonic waveguide interface based on spin-orbit coupling of light
• Photon-mediated interactions between distant artificial atoms
• Fisher Information and entanglement of non-Gaussian spin states
• Extension of Bogoliubov theory to quasi-condensates
• Anisotropic dynamics of a spin-orbit coupled Bose-Einstein condensate
• Mesoscopic Entanglement Induced by Spontaneous Emission in Solid-State Quantum Optics
• Cavity QED on a nanofiber using a composite photonic crystal cavity
• Implementation of the Dicke lattice model in hybrid quantum system arrays
• Steady-state crystallization of Rydberg excitations in an optically driven lattice gas
• Dark state cooling of atoms by superfluid immersion
• Heating dynamics of bosonic atoms in a noisy optical lattice
• Long range order in non-equilibrium interacting quantum spin chains
• Dissipative spin chains: Implementation with cold atoms and steady-state properties
• Dissipative dynamics of atomic Hubbard models coupled to a phonon bath: Dark state cooling of atoms within a Bloch band of an optical lattice

Cited by in corpus (13)

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• Non-reciprocal few-photon devices based on chiral waveguide-emitter couplings
• Engineering and harnessing giant atoms in high-dimensional baths: a cold atoms' implementation
• Delayed Coherent Quantum Feedback from a Scattering Theory and a Matrix Product State Perspective
• Nonreciprocal Atomic Scattering: A saturable, quantum Yagi-Uda antenna
• Steady-state Phase Diagram of a Weakly Driven Chiral-coupled Atomic Chain
• Probing the Flat Band of Optically-Trapped Spin-Orbital Coupled Bose Gases Using Bragg Spectroscopy
• Superradiant Decay and Dipole-Dipole Interaction of Distant Atoms in a Two-Way Cascaded Cavity QED System
• Preparation of a single-photon dark state in a chiral quantum system
• Generalized mean field description of entanglement in dimerized spin systems
• Pair entanglement in dimerized spin-s chains