Kinetically constrained freezing transition in a dipole-conserving system

• URL: http://arxiv.org/abs/2004.00096v3
• Date: Fri, 19 Jun 2020 19:09:38 GMT
• Title: Kinetically constrained freezing transition in a dipole-conserving system
• Authors: Alan Morningstar, Vedika Khemani, and David A. Huse
• Abstract summary: We study a lattice gas of particles in one dimension with strictly finite-range interactions. We find two distinct phases: Near half filling the system thermalizes subdiffusively, with almost all configurations belonging to a single dynamically connected sector. We study the static and dynamic scaling properties of this weak-to-strong fragmentation phase transition in a kinetically constrained classical Markov circuit model.
• Score: 0.4014524824655105
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: We study a stochastic lattice gas of particles in one dimension with strictly finite-range interactions that respect the fracton-like conservation laws of total charge and dipole moment. As the charge density is varied, the connectivity of the system's charge configurations under the dynamics changes qualitatively. We find two distinct phases: Near half filling the system thermalizes subdiffusively, with almost all configurations belonging to a single dynamically connected sector. As the charge density is tuned away from half filling there is a phase transition to a frozen phase where locally active finite bubbles cannot exchange particles and the system fails to thermalize. The two phases exemplify what has recently been referred to as weak and strong Hilbert space fragmentation, respectively. We study the static and dynamic scaling properties of this weak-to-strong fragmentation phase transition in a kinetically constrained classical Markov circuit model, obtaining some conjectured exact critical exponents.

Related papers

• Emergence of non-Abelian SU(2) invariance in Abelian frustrated fermionic ladders [37.69303106863453]
  We consider a system of interacting spinless fermions on a two-leg triangular ladder with $pi/2$ magnetic flux per triangular plaquette. Microscopically, the system exhibits a U(1) symmetry corresponding to the conservation of total fermionic charge, and a discrete $mathbbZ$ symmetry. At the intersection of the three phases, the system features a critical point with an emergent SU(2) symmetry.
  arXiv  Detail & Related papers  (2023-05-11T15:57:27Z)
• 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)
• Continuous phase transition induced by non-Hermiticity in the quantum contact process model [44.58985907089892]
  How the property of quantum many-body system especially the phase transition will be affected by the non-hermiticity remains unclear. We show that there is a continuous phase transition induced by the non-hermiticity in QCP. We observe that the order parameter and susceptibility display infinitely even for finite size system, since non-hermiticity endows universality many-body system with different singular behaviour from classical phase transition.
  arXiv  Detail & Related papers  (2022-09-22T01:11:28Z)
• Coupled Layer Construction for Synthetic Hall Effects in Driven Systems [0.0]
  Quasiperiodically driven fermionic systems can support topological phases not realized in equilibrium. We develop a coupled layer construction for tight-binding models of these phases in $din1,2$ spatial dimensions. A numerical study of the phase diagram for $(d+D) = (1+2)$ shows: (i) robust topological and trivial phases separated by a sharp phase transition; (ii) charge diffusion and a half-integer energy current between the drives at the transition; and (iii) a long-lived topological energy current which remains present when weak interactions are introduced.
  arXiv  Detail & Related papers  (2022-08-12T18:00:01Z)
• Nonequilibrium phases of ultracold bosons with cavity-induced dynamic gauge fields [0.0]
  We study nonequilibrium dynamical phases appearing in a two-leg bosonic lattice model with leg-dependent, dynamical complex tunnelings mediated by two-photon Raman processes. Notably, the phase diagram features a plethora of nonequilibrium dynamical phases including limit-cycle and chaotic phases. In the end, we relate regular periodic dynamics (i.e., limit-cycle phases) of the system to time crystals.
  arXiv  Detail & Related papers  (2022-08-09T08:37:03Z)
• Photoinduced prethermal order parameter dynamics in the two-dimensional large-$N$ Hubbard-Heisenberg model [77.34726150561087]
  We study the microscopic dynamics of competing ordered phases in a two-dimensional correlated electron model. We simulate the light-induced transition between two competing phases.
  arXiv  Detail & Related papers  (2022-05-13T13:13:31Z)
• Quantum critical behavior of entanglement in lattice bosons with cavity-mediated long-range interactions [0.0]
  We analyze the ground-state entanglement entropy of the extended Bose-Hubbard model with infinite-range interactions. This model describes the low-energy dynamics of ultracold bosons tightly bound to an optical lattice and dispersively coupled to a cavity mode.
  arXiv  Detail & Related papers  (2022-04-16T04:10:57Z)
• Peratic Phase Transition by Bulk-to-Surface Response [26.49714398456829]
  We show a duality between many-body dynamics and static Hamiltonian ground states for both classical and quantum systems. Our prediction of peratic phase transition has direct consequences in quantum simulation platforms such as Rydberg atoms and superconducting qubits.
  arXiv  Detail & Related papers  (2021-09-27T18:00:01Z)
• Sub-diffusive phases in open clean long-range systems [0.0]
  We show that a one-dimensional ordered fermionic lattice system with power-law-decaying hopping features two phases showing sub-diffusive scaling of conductance with system size. In the open system scenario, there occurs two chemical-potential-driven sub-diffusive to ballistic phase transitions at zero temperature. We argue that the sub-diffusive phases are robust against the presence of arbitrary number-conserving many-body interactions in the system.
  arXiv  Detail & Related papers  (2021-05-10T17:42:19Z)
• Bloch-Landau-Zener dynamics induced by a synthetic field in a photonic quantum walk [52.77024349608834]
  We realize a photonic quantum walk in the presence of a synthetic gauge field. We investigate intriguing system dynamics characterized by the interplay between Bloch oscillations and Landau-Zener transitions.
  arXiv  Detail & Related papers  (2020-11-11T16:35:41Z)
• Rotational properties of superfluid Fermi-Bose mixtures in a tight toroidal trap [0.0]
  We consider a mixture of a Bose-Einstein condensate, with a paired Fermi superfluid, confined in a ring potential. We start with the ground state of the two clouds, identifying the boundary between the regimes of their phase separation and phase coexistence. When the two species coexist, the spectrum has a rich structure, consisting of continuous and discontinuous phase transitions.
  arXiv  Detail & Related papers  (2020-04-17T09:40:25Z)

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.