Observation of Universal Hall Response in Strongly Interacting Fermions

• URL: http://arxiv.org/abs/2205.13567v2
• Date: Mon, 21 Aug 2023 16:11:58 GMT
• Title: Observation of Universal Hall Response in Strongly Interacting Fermions
• Authors: T.-W. Zhou, G. Cappellini, D. Tusi, L. Franchi, J. Parravicini, C. Repellin, S. Greschner, M. Inguscio, T. Giamarchi, M. Filippone, J. Catani, L. Fallani
• Abstract summary: We use an atomic quantum simulator to track the motion of ultracold fermions in two-leg ribbons threaded by artificial magnetic fields. We unveil a universal interaction-independent behavior above an interaction threshold, in agreement with theoretical analyses.
• Score: 0.0
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: The Hall effect, which originates from the motion of charged particles in magnetic fields, has deep consequences for the description of materials, extending far beyond condensed matter. Understanding such an effect in interacting systems represents a fundamental challenge, even for small magnetic fields. In this work, we used an atomic quantum simulator in which we tracked the motion of ultracold fermions in two-leg ribbons threaded by artificial magnetic fields. Through controllable quench dynamics, we measured the Hall response for a range of synthetic tunneling and atomic interaction strengths. We unveil a universal interaction-independent behavior above an interaction threshold, in agreement with theoretical analyses. The ability to reach hard-to-compute regimes demonstrates the power of quantum simulation to describe strongly correlated topological states of matter.

Related papers

• Visualizing Dynamics of Charges and Strings in (2+1)D Lattice Gauge Theories [103.95523007319937]
  We study the dynamics of local excitations in a lattice of superconducting qubits. For confined excitations, the magnetic field induces a tension in the string connecting them. Our method allows us to experimentally image string dynamics in a (2+1)D LGT.
  arXiv  Detail & Related papers  (2024-09-25T17:59:05Z)
• General theory of cavity-mediated interactions between low-energy matter excitations [0.0]
  cavity quantum electrodynamics engineering has been suggested as a way to enhance low-energy matter properties. We investigate the effective interactions between low-energy matter excitations induced by the off-resonant coupling with cavity electromagnetic modes.
  arXiv  Detail & Related papers  (2024-07-28T12:15:34Z)
• The strongly driven Fermi polaron [49.81410781350196]
  Quasiparticles are emergent excitations of matter that underlie much of our understanding of quantum many-body systems. We take advantage of the clean setting of homogeneous quantum gases and fast radio-frequency control to manipulate Fermi polarons. We measure the decay rate and the quasiparticle residue of the driven polaron from the Rabi oscillations between the two internal states.
  arXiv  Detail & Related papers  (2023-08-10T17:59:51Z)
• Cooperative effects in dense cold atomic gases including magnetic dipole interactions [0.0]
  We investigate cooperative effects in cold atomic gases exhibiting both electric and magnetic dipole-dipole interactions. For quantum degenerate gases, we study the interplay between sub- and superradiance effects and the fermionic or bosonic quantum statistics nature of the ensemble.
  arXiv  Detail & Related papers  (2023-06-20T12:17:07Z)
• Aharonov-Bohm effect for confined matter in lattice gauge theories [0.0]
  We study the dynamics of mesons residing in a ring-shaped lattice of mesoscopic size pierced by an effective magnetic field. We find a new type of Aharonov-Bohm effect that goes beyond the particle-like effect and reflects the the features of the confining gauge potential.
  arXiv  Detail & Related papers  (2023-04-25T10:51:42Z)
• Formation of robust bound states of interacting microwave photons [148.37607455646454]
  One of the hallmarks of interacting systems is the formation of multi-particle bound states. We develop a high fidelity parameterizable fSim gate that implements the periodic quantum circuit of the spin-1/2 XXZ model. By placing microwave photons in adjacent qubit sites, we study the propagation of these excitations and observe their bound nature for up to 5 photons.
  arXiv  Detail & Related papers  (2022-06-10T17:52:29Z)
• Two ultracold highly magnetic atoms in a one-dimensional harmonic trap [0.0]
  We theoretically investigate the properties of two interacting ultracold highly magnetic atoms trapped in a one-dimensional harmonic potential. We show the role of inability and symmetries in the dynamics by studying the time evolution of the observables. The presented model may depict the on-site interaction of the extended Hubbard models, therefore giving a better understanding of the fundamental building block of the respective many-body quantum simulators.
  arXiv  Detail & Related papers  (2022-05-18T14:44:37Z)
• Dispersive readout of molecular spin qudits [68.8204255655161]
  We study the physics of a magnetic molecule described by a "giant" spin with multiple $d > 2$ spin states. We derive an expression for the output modes in the dispersive regime of operation. We find that the measurement of the cavity transmission allows to uniquely determine the spin state of the qudits.
  arXiv  Detail & Related papers  (2021-09-29T18:00:09Z)
• 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)
• 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)
• Fractional-quantum-Hall-effect (FQHE) in 1D Hubbard models [0.0]
  We show the emergence of 1D states with density-wave and clustering order, related to topology, at odd denominator fillings. We demonstrate a simple mechanism to reproduce many of the effects appearing in the fractional-quantum-Hall-effect.
  arXiv  Detail & Related papers  (2020-06-04T10:39:01Z)

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.