Pair scattering from time-modulated impurity in the Bose-Hubbard model

• URL: http://arxiv.org/abs/2511.17032v1
• Date: Fri, 21 Nov 2025 08:20:45 GMT
• Title: Pair scattering from time-modulated impurity in the Bose-Hubbard model
• Authors: Neda Ahmadi, Ameneh Sheikhan, Corinna Kollath,
• Abstract summary: We analyze single-particle and pair (doublon) transmission, exploring a range of interaction strengths and drive amplitudes.<n>At intermediate and weak attractive interactions, we observe significant pair dissociation and the emergence of dynamically localized single-particle modes.<n>These findings provide new avenues for engineering controllable quantum transport and localized states in ultracold atom experiments.
• Score: 0.0
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: We investigate scattering phenomena in a one-dimensional attractive Bose-Hubbard model with a time-periodically modulated impurity. We analyze both single-particle and pair (doublon) transmission, exploring a range of interaction strengths and drive amplitudes. Our exact numerical results reveal excellent quantitative agreement with analytical predictions in the high-frequency limit. At intermediate and weak attractive interactions, we observe significant pair dissociation and the emergence of dynamically localized single-particle modes. These features are reminiscent of Floquet Bound States in the Continuum (BICs). These findings provide new avenues for engineering controllable quantum transport and localized states in ultracold atom experiments.

Related papers

• Efficiency of Dynamical Decoupling for (Almost) Any Spin-Boson Model [44.99833362998488]
  We analytically study the dynamical decoupling of a two-level system coupled with a structured bosonic environment.<n>We find sufficient conditions under which dynamical decoupling works for such systems.<n>Our bounds reproduce the correct scaling in various relevant system parameters.
  arXiv  Detail & Related papers  (2024-09-24T04:58:28Z)
• A high-flux source system for matter-wave interferometry exploiting tunable interactions [33.92525320044496]
  Atom interferometers allow determining inertial effects to high accuracy. Here we report on a high-flux source of ultra-cold atoms with free expansion rates near the Heisenberg limit directly upon release from the trap.
  arXiv  Detail & Related papers  (2023-07-13T14:10:53Z)
• Spin- and Momentum-Correlated Atom Pairs Mediated by Photon Exchange and Seeded by Vacuum Fluctuations [0.0]
  We experimentally demonstrate a mechanism for generating pairs of atoms in well-defined spin and momentum modes. We observe a collectively enhanced production of pairs and probe interspin correlations in momentum space. Our results offer promising prospects for quantum-enhanced interferometry and quantum simulation experiments.
  arXiv  Detail & Related papers  (2023-03-20T17:59:03Z)
• Halide perovskite artificial solids as a new platform to simulate collective phenomena in doped Mott insulators [43.55994393060723]
  We introduce artificial lattices made of lead halide perovskite nanocubes as a new platform to simulate and investigate the physics of correlated quantum materials. We show that, at large photo-doping, the exciton gas undergoes an excitonic Mott transition, which fully realizes the magnetic-field-driven insulator-to-metal transition described by the Hubbard model. Our results demonstrate that time-resolved experiments span a parameter region of the Hubbard model in which long-range and phase-coherent orders emerge out of a doped Mott insulating phase.
  arXiv  Detail & Related papers  (2023-03-15T17:38:51Z)
• 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)
• Effect of Emitters on Quantum State Transfer in Coupled Cavity Arrays [48.06402199083057]
  We study the effects of atoms in cavities which can absorb and emit photons as they propagate down the array. Our model is equivalent to previously examined spin chains in the one-excitation sector and in the absence of emitters.
  arXiv  Detail & Related papers  (2021-12-10T18:52:07Z)
• Visualizing spinon Fermi surfaces with time-dependent spectroscopy [62.997667081978825]
  We propose applying time-dependent photo-emission spectroscopy, an established tool in solid state systems, in cold atom quantum simulators. We show in exact diagonalization simulations of the one-dimensional $t-J$ model that the spinons start to populate previously unoccupied states in an effective band structure. The dependence of the spectral function on the time after the pump pulse reveals collective interactions among spinons.
  arXiv  Detail & Related papers  (2021-05-27T18:00:02Z)
• Onset and Irreversibility of Granulation of Bose-Einstein condensates under Feshbach Resonance Management [0.0]
  Granulation of quantum matter -- the formation of persistent small-scale patterns -- is realized in the images of Bose-Einstein condensates. Our present analysis of a mean-field approximation suggests that granulation is caused by the gradual transformation of phase undulations into density undulations.
  arXiv  Detail & Related papers  (2021-03-12T19:00:02Z)
• Bosonic Quantum Dynamics Following Colliding Potential Wells [0.0]
  We investigate the correlated non-equilibrium quantum dynamics of two bosons confined in two colliding and uniformly accelerated Gaussian wells. Despite the comparatively weak interaction strengths employed in this work, we identify strong inter-particle correlations by analyzing the corresponding Von Neumann entropy.
  arXiv  Detail & Related papers  (2021-02-02T14:59:08Z)
• Light-matter interactions near photonic Weyl points [68.8204255655161]
  Weyl photons appear when two three-dimensional photonic bands with linear dispersion are degenerated at a single momentum point, labeled as Weyl point. We analyze the dynamics of a single quantum emitter coupled to a Weyl photonic bath as a function of its detuning with respect to the Weyl point.
  arXiv  Detail & Related papers  (2020-12-23T18:51:13Z)
• Phase and group velocities for correlation spreading in the Mott phase of the Bose-Hubbard model in dimensions greater than one [0.0]
  Lieb-Robinson and related bounds set an upper limit on the rate of spreading of information in non-relativistic quantum systems. We use a recently developed two particle irreducible (2PI) strong coupling approach to out-of-equilibrium dynamics in the Bose-Hubbard model. Our results establish the 2PI strong coupling approach as a powerful tool to study out-of-equilibrium dynamics in the Bose-Hubbard model in dimensions greater than one.
  arXiv  Detail & Related papers  (2020-07-31T18:01:12Z)
• BEC immersed in a Fermi sea: Theory of static and dynamic behavior across phase separation [1.7990829163162367]
  We study the static and dynamic behavior of a BEC immersed in a large Fermi sea of ultracold atoms under conditions of tunable interspecies interaction. We develop mean-field models to simulate the system over a wide range of repulsion strength. We show that the mediated interaction between bosons induced by the Fermi sea can be understood as an adiabatic second-order mean-field effect.
  arXiv  Detail & Related papers  (2020-04-17T15:03:27Z)

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.