Linear mapping between magnetic susceptibility and entanglement in conventional and exotic one-dimensional superfluids

• URL: http://arxiv.org/abs/2003.08148v2
• Date: Wed, 17 Jun 2020 01:37:32 GMT
• Title: Linear mapping between magnetic susceptibility and entanglement in conventional and exotic one-dimensional superfluids
• Authors: D. Arisa and V. V. Fran\c{c}a
• Abstract summary: We numerically study the intrinsic relationship between the two quantities at zero temperature. For conventional and exotic superfluids the mapping between magnetic susceptibility and entanglement is surprisingly simple: inversely proportional. This linear behavior could be exploited to quantify entanglement in current cold-atoms and condensed-matter experiments.
• Score: 0.0
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: We investigate the mapping between magnetic susceptibility and entanglement in the metallic, insulating, conventional and exotic polarized superfluid phases of one-dimensional fermionic lattice systems as described by the Hubbard model. Motivated by recent proposals for determining and quantifying entanglement via magnetic susceptibility measurements, we numerically study the intrinsic relationship between the two quantities at zero temperature. We find signatures of the metal-insulator transition and of the BCS-BEC crossover, but the most relevant result is that for conventional and exotic superfluids the mapping between magnetic susceptibility and entanglement is surprisingly simple: inversely proportional. This linear behavior could be exploited to quantify entanglement in current cold-atoms and condensed-matter experiments.

Related papers

• Quantum phase diagrams of Dicke-Ising models by a wormhole algorithm [0.0]
  We introduce a wormhole algorithm for the paradigmatic Dicke-Ising model. For ferro- and antiferromagnetic interactions, we establish the light-matter analogue of a lattice supersolid with off-diagonal superradiant and diagonal magnetic order.
  arXiv  Detail & Related papers  (2024-09-23T14:54:20Z)
• Unveiling Exotic Magnetic Phases in Fibonacci Quasicrystalline Stacking of Ferromagnetic Layers through Machine Learning [0.0]
  We study a Fibonacci quasicrystalline stacking of ferromagnetic layers, potentially realizable using van der Waals magnetic materials. We construct a model of this magnetic heterostructure, that displays a complex relationship between geometric frustration and magnetic order in this quasicrystalline system. We employ a machine learning approach, which proves to be a powerful tool in revealing the complex magnetic behavior of this system.
  arXiv  Detail & Related papers  (2023-07-29T19:03:12Z)
• Chiral Pseudo Spin Liquids in Moire Heterostructures [0.0]
  We propose multi-layer moire structures in strong external magnetic fields as a novel platform for realizing frustrated Hubbard physics with topological order. We identify the layer degree of freedom as a pseudo spin and control ring-exchange processes and concurrently quenching the kinetic energy by large external magnetic fields. We find that this topologically ordered state remains exceptionally stable towards relevant perturbations.
  arXiv  Detail & Related papers  (2022-09-12T18:00:10Z)
• Rotating Majorana Zero Modes in a disk geometry [75.34254292381189]
  We study the manipulation of Majorana zero modes in a thin disk made from a $p$-wave superconductor. We analyze the second-order topological corner modes that arise when an in-plane magnetic field is applied. We show that oscillations persist even in the adiabatic phase because of a frequency independent coupling between zero modes and excited states.
  arXiv  Detail & Related papers  (2021-09-08T11:18:50Z)
• Phase diagram of a distorted kagome antiferromagnet and application to Y-kapellasite [50.591267188664666]
  We reveal a rich ground state phase diagram even at the classical level. The presented model opens a new direction in the study of kagome antiferromagnets.
  arXiv  Detail & Related papers  (2021-07-28T18:00:03Z)
• Self-consistently renormailzed spin-wave theory of layered ferromagnets on honeycomb lattice [0.0]
  We develop a self-consistently renormalized spin-wave theory, within a mean-field approximation, for the two-dimensional Heisenberg ferromagnet with easy-axis anisotropy. In this method, the magnetization dependence on temperature is found as the solution of the self-consistency equation.
  arXiv  Detail & Related papers  (2021-07-08T19:48:54Z)
• Chemical tuning of spin clock transitions in molecular monomers based on nuclear spin-free Ni(II) [52.259804540075514]
  We report the existence of a sizeable quantum tunnelling splitting between the two lowest electronic spin levels of mononuclear Ni complexes. The level anti-crossing, or magnetic clock transition, associated with this gap has been directly monitored by heat capacity experiments. The comparison of these results with those obtained for a Co derivative, for which tunnelling is forbidden by symmetry, shows that the clock transition leads to an effective suppression of intermolecular spin-spin interactions.
  arXiv  Detail & Related papers  (2021-03-04T13:31:40Z)
• Superradiant phase transition in complex networks [62.997667081978825]
  We consider a superradiant phase transition problem for the Dicke-Ising model. We examine regular, random, and scale-free network structures.
  arXiv  Detail & Related papers  (2020-12-05T17:40:53Z)
• Spin Entanglement and Magnetic Competition via Long-range Interactions in Spinor Quantum Optical Lattices [62.997667081978825]
  We study the effects of cavity mediated long range magnetic interactions and optical lattices in ultracold matter. We find that global interactions modify the underlying magnetic character of the system while introducing competition scenarios. These allow new alternatives toward the design of robust mechanisms for quantum information purposes.
  arXiv  Detail & Related papers  (2020-11-16T08:03:44Z)
• Photon Condensation and Enhanced Magnetism in Cavity QED [68.8204255655161]
  A system of magnetic molecules coupled to microwave cavities undergoes the equilibrium superradiant phase transition. The effect of the coupling is first illustrated by the vacuum-induced ferromagnetic order in a quantum Ising model. A transmission experiment is shown to resolve the transition, measuring the quantum electrodynamical control of magnetism.
  arXiv  Detail & Related papers  (2020-11-07T11:18:24Z)
• Spin fluctuations in quantized transport of magnetic topological insulators [13.057879371185681]
  In magnetic topological insulators, quantized electronic transport is interwined with spontaneous magnetic ordering, as magnetization controls band gaps. We show that considering the exchange gaps at the mean-field level is inadequate to predict phase transitions between electronic states of distinct topology.
  arXiv  Detail & Related papers  (2020-10-01T17:42:37Z)

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.