Steady-state phase transition in one-dimensional hybrid contact process

• URL: http://arxiv.org/abs/2608.10948v1
• Date: Tue, 11 Aug 2026 14:17:41 GMT
• Title: Steady-state phase transition in one-dimensional hybrid contact process
• Abstract summary: We show the existence of the stable absorbing and active phases, and the bistable region in the long-time limit.<n>The saddle-node bifurcation is observed at the boundary between the absorbing phase and the bistable region, suggesting a discontinuous phase transition.
• Score: 1.3241176321860364
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: We investigate the steady-state phase transition in a one-dimensional hybrid contact process. We implement the single-site and cluster mean-field approximations based on the effective fields and present all the possible steady states of the system. We show the existence of the stable absorbing and active phases, and the bistable region in the long-time limit. The saddle-node bifurcation is observed at the boundary between the absorbing phase and the bistable region, suggesting a discontinuous phase transition. While the absorbing to active phase transition is continuous. To characterize the nonclassical scaling behavior of the continuous phase transition, we extract the true critical points and exponents by means of the coherent anomaly method.

Related papers

• Ergotropy from Geometric Phases in a Dephasing Qubit [45.88028371034407]
  We analyze the geometric phase and dynamic phase acquired by a qubit coupled to an environment through pure dephasing.<n>We show that the dynamic phase depends solely on the incoherent ergotropy, reflecting its purely energetic origin.<n>The geometric phase exhibits a nontrivial dependence on both the coherent and incoherent contributions to the total ergotropy.
  arXiv  Detail & Related papers  (2026-03-01T14:22:37Z)
• Steady-state phase transition in one-dimensional quantum contact process [1.3241176321860364]
  We show the bistability of the absorbing and active phases in the system with strong interaction between neighboring sites.<n>We find that, near the transition point, the system may evolve first to the long-lived metastable state before reaching the eventual steady state.
  arXiv  Detail & Related papers  (2025-10-19T13:52:11Z)
• Topological Phase Transitions and Mixed State Order in a Hubbard Quantum Simulator [36.556659404501914]
  Topological phase transitions challenge conventional paradigms in many-body physics.<n>We observe such a transition between one-dimensional crystalline symmetry-protected topological phases.<n>Our results demonstrate how topology and information influence quantum phase transitions.
  arXiv  Detail & Related papers  (2025-05-22T17:58:35Z)
• Phase Transitions in Nonreciprocal Driven-Dissipative Condensates [0.46976113832881716]
  We investigate the influence of boundaries and spatial nonreciprocity on nonequilibrium driven-dissipative phase transitions.<n>Our model does not require post-selection and is experimentally realizable in platforms such as superconducting circuits.
  arXiv  Detail & Related papers  (2025-02-07T19:00:07Z)
• Probing quantum floating phases in Rydberg atom arrays [61.242961328078245]
  We experimentally observe the emergence of the quantum floating phase in 92 neutral-atom qubits. The site-resolved measurement reveals the formation of domain walls within the commensurate ordered phase. As the experimental system sizes increase, we show that the wave vectors approach a continuum of values incommensurate with the lattice.
  arXiv  Detail & Related papers  (2024-01-16T03:26:36Z)
• Crossover from the discontinuous to continuous phase transitions in dissipative spin system with collective decay [0.0]
  We find that the quasi continuous steady-state phase transition is presented as a consequence of the merging of two branches of steady-state solutions. The emergence of bistability is confirmed by analyzing the steady-state behaviors of a set of finite-size systems.
  arXiv  Detail & Related papers  (2023-04-19T13:24:32Z)
• Controlling entanglement at absorbing state phase transitions in random circuits [0.0]
  We study the entanglement entropy behavior at the absorbing state phase transition. For short-range control operations, we observe a transition between phases with distinct sub-extensive scalings of entanglement entropy. Our results shed new light on the problem of observability of measurement-induced phase transitions.
  arXiv  Detail & Related papers  (2022-12-28T13:49:43Z)
• Phase diagram of Rydberg-dressed atoms on two-leg triangular ladders [50.591267188664666]
  We investigate the phase diagram of hard-core bosons in a triangular ladder with next-to-nearest-neighbor interaction along each leg. For weak interactions, Abelian bosonization predicts a spin density wave and a fully gapless Luttinger liquid phase. The competition with the zigzag interaction generates a charge density wave, a 'polarized holonic' phase, and a crystalline phase at the filling 2/5.
  arXiv  Detail & Related papers  (2022-07-01T12:49:04Z)
• Topological transitions with continuously monitored free fermions [68.8204255655161]
  We show the presence of a topological phase transition that is of a different universality class than that observed in stroboscopic projective circuits. We find that this entanglement transition is well identified by a combination of the bipartite entanglement entropy and the topological entanglement entropy.
  arXiv  Detail & Related papers  (2021-12-17T22:01:54Z)
• Generalized quantum measurements with matrix product states: Entanglement phase transition and clusterization [58.720142291102135]
  We propose a method for studying the time evolution of many-body quantum lattice systems under continuous and site-resolved measurement. We observe a peculiar phenomenon of measurement-induced particle clusterization that takes place only for frequent moderately strong measurements, but not for strong infrequent measurements.
  arXiv  Detail & Related papers  (2021-04-21T10:36:57Z)
• Universality of entanglement transitions from stroboscopic to continuous measurements [68.8204255655161]
  We show that the entanglement transition at finite coupling persists if the continuously measured system is randomly nonintegrable. This provides a bridge between a wide range of experimental settings and the wealth of knowledge accumulated for the latter systems.
  arXiv  Detail & Related papers  (2020-05-04T21:45:59Z)
• Topological Phase Transitions Induced by Varying Topology and Boundaries in the Toric Code [0.0]
  We study the sensitivity of such phases of matter to the underlying topology. We claim that these phase transitions are accompanied by broken symmetries in the excitation space. We show that the phase transition between such steady states is effectively captured by the expectation value of the open-loop operator.
  arXiv  Detail & Related papers  (2020-04-07T18:00:06Z)

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.