Simulation of XXZ Spin Models using Sideband Transitions in Trapped Bosonic Gases

• URL: http://arxiv.org/abs/2004.01282v2
• Date: Wed, 28 Oct 2020 19:25:38 GMT
• Title: Simulation of XXZ Spin Models using Sideband Transitions in Trapped Bosonic Gases
• Authors: Anjun Chu, Johannes Will, Jan Arlt, Carsten Klempt, Ana Maria Rey
• Abstract summary: We experimentally demonstrate the use of motional sidebands in a trapped ensemble of $87$Rb atoms to engineer tunable long-range XXZ spin models.
• Score: 0.0
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: We theoretically propose and experimentally demonstrate the use of motional sidebands in a trapped ensemble of $^{87}$Rb atoms to engineer tunable long-range XXZ spin models. We benchmark our simulator by probing a ferromagnetic to paramagnetic dynamical phase transition in the Lipkin-Meshkov-Glick (LMG) model, a collective XXZ model plus additional transverse and longitudinal fields, via Rabi spectroscopy. We experimentally reconstruct the boundary between the dynamical phases, which is in good agreement with mean-field theoretical predictions. Our work introduces new possibilities in quantum simulation of anisotropic spin-spin interactions and quantum metrology enhanced by many-body entanglement.

Related papers

• Antiferromagnetic bosonic $t$-$J$ models and their quantum simulation in tweezer arrays [0.0]
  We propose an experimental scheme to realize bosonic t-J models via encoding the local Hilbert space in a set of three internal atomic or molecular states. By engineering antiferromagnetic (AFM) couplings between spins, competition between charge motion and magnetic order similar to that in high-$T_c$ cuprates can be realized.
  arXiv  Detail & Related papers  (2023-05-03T17:59:59Z)
• Quantum emulation of the transient dynamics in the multistate Landau-Zener model [50.591267188664666]
  We study the transient dynamics in the multistate Landau-Zener model as a function of the Landau-Zener velocity. Our experiments pave the way for more complex simulations with qubits coupled to an engineered bosonic mode spectrum.
  arXiv  Detail & Related papers  (2022-11-26T15:04:11Z)
• Spin Current Density Functional Theory of the Quantum Spin-Hall Phase [59.50307752165016]
  We apply the spin current density functional theory to the quantum spin-Hall phase. We show that the explicit account of spin currents in the electron-electron potential of the SCDFT is key to the appearance of a Dirac cone.
  arXiv  Detail & Related papers  (2022-08-29T20:46:26Z)
• Tuning long-range fermion-mediated interactions in cold-atom quantum simulators [68.8204255655161]
  Engineering long-range interactions in cold-atom quantum simulators can lead to exotic quantum many-body behavior. Here, we propose several tuning knobs, accessible in current experimental platforms, that allow to further control the range and shape of the mediated interactions.
  arXiv  Detail & Related papers  (2022-03-31T13:32:12Z)
• Accessing the topological Mott insulator in cold atom quantum simulators with realistic Rydberg dressing [58.720142291102135]
  We investigate a realistic scenario for the quantum simulation of such systems using cold Rydberg-dressed atoms in optical lattices. We perform a detailed analysis of the phase diagram at half- and incommensurate fillings, in the mean-field approximation. We furthermore study the stability of the phases with respect to temperature within the mean-field approximation.
  arXiv  Detail & Related papers  (2022-03-28T14:55:28Z)
• Experimental Realization of the Rabi-Hubbard Model with Trapped Ions [7.2123846411070325]
  We report an experimental realization of the Rabi-Hubbard model using up to $16$ trapped ions. We present a controlled study of its equilibrium properties and quantum dynamics. For larger-size systems of $16$ ions and $16$ phonon modes, the effective Hilbert space dimension exceeds $257$, whose dynamics is intractable for classical supercomputers.
  arXiv  Detail & Related papers  (2021-10-07T07:24:45Z)
• Fast scrambling dynamics and many-body localization transition in an all-to-all disordered quantum spin model [11.98074850168011]
  We study the quantum thermalization and information scrambling dynamics of an experimentally realizable quantum spin model. We identify the thermalization-localization transition by changing the disorder strength. The scrambling dynamics in the localization phase shows novel behaviors distinct from that of local models.
  arXiv  Detail & Related papers  (2021-09-12T15:26:14Z)
• Collective P-Wave Orbital Dynamics of Ultracold Fermions [0.0]
  We consider the non-equilibrium orbital dynamics of spin-polarized ultracold fermions in the first excited band of an optical lattice. A specific lattice depth and filling configuration is designed to allow the $p_x$ and $p_y$ excited orbital degrees of freedom to act as a pseudo-spin.
  arXiv  Detail & Related papers  (2021-04-13T19:47:05Z)
• Molecular spin qudits for quantum simulation of light-matter interactions [62.223544431366896]
  We show that molecular spin qudits provide an ideal platform to simulate the quantum dynamics of photon fields strongly interacting with matter. The basic unit of the proposed molecular quantum simulator can be realized by a simple dimer of a spin 1/2 and a spin $S$ transition metal ion, solely controlled by microwave pulses.
  arXiv  Detail & Related papers  (2021-03-17T15:03:12Z)
• Probing eigenstate thermalization in quantum simulators via fluctuation-dissipation relations [77.34726150561087]
  The eigenstate thermalization hypothesis (ETH) offers a universal mechanism for the approach to equilibrium of closed quantum many-body systems. Here, we propose a theory-independent route to probe the full ETH in quantum simulators by observing the emergence of fluctuation-dissipation relations. Our work presents a theory-independent way to characterize thermalization in quantum simulators and paves the way to quantum simulate condensed matter pump-probe experiments.
  arXiv  Detail & Related papers  (2020-07-20T18:00:02Z)

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.