Full decoherence induced by local fields in open spin chains with strong boundary couplings

Abstract

We investigate an open $XYZ$ spin $1/2$ chain driven out of equilibrium by boundary reservoirs targeting different spin orientations, aligned along the principal axes of anisotropy. We show that by tuning local magnetic fields, applied to spins at sites near the boundaries, one can change any nonequilibrium steady state to a fully uncorrelated Gibbsian state at infinite temperature. This phenomenon occurs for strong boundary coupling and on a critical manifold in the space of the fields amplitudes. The structure of this manifold depends on the anisotropy degree of the model and on the parity of the chain size.

11 pages, 7 Figures

References in corpus (19)

• The Quantum Jump Approach to Dissipative Dynamics in Quantum Optics
• Quantum computing with trapped ions
• Preparation of Entangled States by Quantum Markov Processes
• Quantum Zeno subspaces
• Symmetries and conserved quantities in Lindblad master equations
• Quantum Zeno dynamics: mathematical and physical aspects
• Spin transport in a one-dimensional anisotropic Heisenberg model
• From the quantum Zeno to the inverse quantum Zeno effect
• Exact matrix product solution for the boundary-driven Lindblad $XXZ$-chain
• PT-symmetric quantum Liouvillian dynamics
• Integrability of quantum chains: theory and applications to the spin-1/2 $XXZ$ chain
• Driven isotropic Heisenberg spin chain with arbitrary boundary twisting angle: exact results
• Transport in a one-dimensional isotropic Heisenberg model at high temperature
• Parametrization of the feedback Hamiltonian realizing a pure steady state
• Manipulating energy and spin currents in nonequilibrium systems of interacting qubits
• Comments on boundary driven open XXZ chain: asymmetric driving and uniqueness of steady states
• Alternation of sign of magnetization current in driven XXZ chains with twisted XY boundary gradients
• Optimal transport and von Neumann entropy in an Heisenberg XXZ chain out of equilibrium
• Anomalous currents in driven XXZ chain with boundary twisting at weak coupling or weak driving

Cited by in corpus (7)

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• Exact steady state of the open XX-spin chain: entanglement and transport properties
• Transition between dissipatively stabilized helical states
• Switching pure states of the dissipative Heisenberg XXZ chain by local magnetic fields
• Inhomogeneous MPA and exact steady states of boundary driven spin chains at large dissipation