Dissipation-tunable extended and localized steady states in a non-disordered lattice

• URL: http://arxiv.org/abs/2608.19694v1
• Date: Thu, 20 Aug 2026 06:38:25 GMT
• Title: Dissipation-tunable extended and localized steady states in a non-disordered lattice
• Abstract summary: We show that suitably engineered dissipation can be used to select localized or extended states in a strictly non-disordered one-dimensional lattice.<n>Our results establish phase-selective bond dissipation as a route to controllable state preparation and transport manipulation.
• Score: 5.437499298223565
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: Dissipation is usually regarded as a source of decoherence that suppresses quantum interference and localization. Here we show that suitably engineered dissipation can instead be used to select localized or extended states in a strictly non-disordered one-dimensional lattice. The underlying clean lattice has spatially inhomogeneous hopping and supports both extended bulk states and localized boundary states, including an algebraically localized bound state in the continuum. We introduce a nonlocal bond jump operator with a tunable relative phase and show that this phase selectively favors eigenstates with different spatial phase correlations. As a result, the long-time density matrix can be steered toward sectors dominated by localized or extended Hamiltonian eigenstates without changing any Hamiltonian parameter. The microscopic origin of the selection is quantified by the fraction of site pairs separated by a distance $l$ that are phase matched with the dissipative channel. We further characterize the dissipative quench through the quantum fidelity and show that the selected character of the steady state can persist after the dissipation is removed. Our results establish phase-selective bond dissipation as a route to controllable state preparation and transport manipulation in non-disordered lattices.

Related papers

• The Geometric Phase as a Diagnostic for Driven-Dissipative Oscillators [13.38226745175549]
  We show that driven-dissipative quantum oscillators lock their phase, deform their limit cycles, and undergo dissipative phase transitions.<n>This behavior is read from unrelated quantities defined on the same steady-state density matrix.<n>We show that a single geometric quantity organizes them.
  arXiv  Detail & Related papers  (2026-08-26T12:52:36Z)
• Dephasing-induced distinct mobility edges in a dimerized off-diagonal quasicrystal [5.437499298223565]
  Conventional theory suggests that dephasing and decoherence should disrupt localization and facilitate transport.<n>In this work, we investigate localization behaviors in a dimerized off-diagonal Aubry-Andre-Harper quasicrystal subject to on-site pure dephasing.<n>We numerically verify the coexistence of fully extended, multifractal critical, and localized regions within the relaxation spectrum of the dissipative system, and construct the global dissipative phase diagram.
  arXiv  Detail & Related papers  (2026-08-18T15:58:24Z)
• Chiral Quantum Entanglement Transfer with Giant Atoms [20.48260886432514]
  entanglement transfer in a multi-giant-atom waveguide system.<n>System converges to a dark state, guaranteeing high-fidelity directional transfer.<n>Our proposal offers a scalable pathway for continuous long-distance entanglement transport and resilient state exchange in quantum networks.
  arXiv  Detail & Related papers  (2026-06-07T15:50:03Z)
• Aperiodic Dissipation as a Mechanism for Steady-State Localization [0.0]
  Incommensurate modulation plays the most efficient role in stabilizing a localized steady-state.<n>Dissipation can actively shape localization rather than simply causing decoherence.
  arXiv  Detail & Related papers  (2025-06-18T03:26:28Z)
• Dissipation induced localization-delocalization transition in a flat band [4.106350459637523]
  We show that dissipation can be harnessed to induce transitions between extended and localized phases, offering a novel approach to manipulate quantum transport in flat band systems.<n>This work deepens our understanding of dissipation-induced phenomena in flat band systems and also provides a new avenue for controlling quantum states in open systems.
  arXiv  Detail & Related papers  (2025-04-13T06:02:16Z)
• Symmetries, Conservation Laws and Entanglement in Non-Hermitian Fermionic Lattices [37.69303106863453]
  Non-Hermitian quantum many-body systems feature steady-state entanglement transitions driven by unitary dynamics and dissipation.<n>We show that the steady state is obtained by filling single-particle right eigenstates with the largest imaginary part of the eigenvalue.<n>We illustrate these principles in the Hatano-Nelson model with periodic boundary conditions and the non-Hermitian Su-Schrieffer-Heeger model.
  arXiv  Detail & Related papers  (2025-04-11T14:06:05Z)
• Identification of a natural fieldlike entanglement resource in trapped-ion chains [0.0]
  The electromagnetic trapping of ion chains can be regarded as a process of non-trivial entangled quantum state preparation. The decay of entanglement between disjoint subsets of local modes is found to exhibit features of entanglement structure. A framework is established for initializing quantum field simulations via "imaging" extended entangled states from natural sources.
  arXiv  Detail & Related papers  (2023-11-15T10:32:02Z)
• Entanglement and localization in long-range quadratic Lindbladians [49.1574468325115]
  Signatures of localization have been observed in condensed matter and cold atomic systems. We propose a model of one-dimensional chain of non-interacting, spinless fermions coupled to a local ensemble of baths. We show that the steady state of the system undergoes a localization entanglement phase transition by tuning $p$ which remains stable in the presence of coherent hopping.
  arXiv  Detail & Related papers  (2023-03-13T12:45:25Z)
• Reentrant Localized Bulk and Localized-Extended Edge in Quasiperiodic Non-Hermitian Systems [1.4638370614615002]
  The localization is one of the active and fundamental research in topology physics. We propose a novel systematic method to analyze the localization behaviors for the bulk and the edge, respectively.
  arXiv  Detail & Related papers  (2022-07-01T02:49:23Z)
• Spectrum of localized states in fermionic chains with defect and adiabatic charge pumping [68.8204255655161]
  We study the localized states of a generic quadratic fermionic chain with finite-range couplings. We analyze the robustness of the connection between bands against perturbations of the Hamiltonian.
  arXiv  Detail & Related papers  (2021-07-20T18:44:06Z)
• Robustness and Independence of the Eigenstates with respect to the Boundary Conditions across a Delocalization-Localization Phase Transition [15.907303576427644]
  We focus on the many-body eigenstates across a localization-delocalization phase transition. In the ergodic phase, the average of eigenstate overlaps $barmathcalO$ is exponential decay with the increase of the system size. For localized systems, $barmathcalO$ is almost size-independent showing the strong robustness of the eigenstates.
  arXiv  Detail & Related papers  (2020-05-19T10:19:52Z)

This list is automatically generated from the titles and abstracts of the papers in this site.

This site does not guarantee the quality of this site (including all information) and is not responsible for any consequences.