Geometrical frustration, power law tunneling and non-local gauge fields from scattered light

• URL: http://arxiv.org/abs/2502.04330v1
• Date: Thu, 06 Feb 2025 18:59:58 GMT
• Title: Geometrical frustration, power law tunneling and non-local gauge fields from scattered light
• Authors: Pavel P. Popov, Joana Fraxanet, Luca Barbiero, Maciej Lewenstein,
• Abstract summary: We consider off-resonant photon scattering processes on a geometrically shaped molecular cloud. Our analysis shows that such a setup is properly modeled by a Bose-Hubbard Hamiltonian.
• Score: 0.0
• License:
• Abstract: Designing the amplitude and range of couplings in quantum systems is a fundamental tool for exploring a large variety of quantum mechanical effects. Here, we consider off-resonant photon scattering processes on a geometrically shaped molecular cloud. Our analysis shows that such a setup is properly modeled by a Bose-Hubbard Hamiltonian where the range, amplitude and sign of the tunneling processes of the scattered photonic modes can be accurately tuned. Specifically, by varying the molecular distribution, we demonstrate that different configurations characterized by geometrical frustration, long-range power law hopping processes, and non-local gauge fields can be achieved. Our results thus represent a powerful and alternative approach to perform an accurate Hamiltonian engineering of quantum systems with non trivial coupling structures.

Related papers

• Quantum limited imaging of a nanomechanical resonator with a spatial mode sorter [0.6384650391969042]
  We explore the use of a spatial mode sorter to image a nanomechanical resonator. We reflect a Gaussian laser beam from a vibrating nanoribbon and pass the reflected beam through a commercial spatial mode demultiplexer. We show that this technique permits readout of the ribbon's torsional vibration with a precision near the quantum limit.
  arXiv  Detail & Related papers  (2024-11-07T18:52:18Z)
• Nonlinear dynamical Casimir effect and Unruh entanglement in waveguide QED with parametrically modulated coupling [83.88591755871734]
  We study theoretically an array of two-level qubits moving relative to a one-dimensional waveguide. When the frequency of this motion approaches twice the qubit resonance frequency, it induces parametric generation of photons and excitation of the qubits. We develop a comprehensive general theoretical framework that incorporates both perturbative diagrammatic techniques and a rigorous master-equation approach.
  arXiv  Detail & Related papers  (2024-08-30T15:54:33Z)
• Mean-field and cumulant approaches to modelling organic polariton physics [0.0]
  We develop methods for many-body open quantum systems and apply them to systems of organic polaritons. The methods employ a mean-field approach to reduce the dimensionality of large-scale problems. We show how the cumulant expansions may be used to calculate spatially resolved dynamics of organic polaritons.
  arXiv  Detail & Related papers  (2024-05-16T04:54:41Z)
• Single photon scattering from a chain of giant atoms coupled to a one-dimensional waveguide [0.0]
  We investigate coherent single-photon transport in a waveguide quantum electrodynamics system containing multiple giant atoms. We find that the non-dipole effects of giant atoms can strongly manipulate several types of collective properties of the output fields. We propose to probe the topological states of a chain of braided giant atoms by using photon scattering spectra.
  arXiv  Detail & Related papers  (2024-03-02T08:17:55Z)
• Individually tunable tunnelling coefficients in optical lattices using local periodic driving [1.6385815610837167]
  We show theoretically how local control over individual tunnelling links in an optical lattice can be achieved. We employ Floquet theory to demonstrate how this provides full individual control over the tunnelling amplitudes in one dimension.
  arXiv  Detail & Related papers  (2023-09-21T14:44:43Z)
• Probing the symmetry breaking of a light--matter system by an ancillary qubit [50.591267188664666]
  Hybrid quantum systems in the ultrastrong, and even more in the deep-strong, coupling regimes can exhibit exotic physical phenomena. We experimentally observe the parity symmetry breaking of an ancillary Xmon artificial atom induced by the field of a lumped-element superconducting resonator. This result opens a way to experimentally explore the novel quantum-vacuum effects emerging in the deep-strong coupling regime.
  arXiv  Detail & Related papers  (2022-09-13T06:14:08Z)
• 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)
• Ultra-long photonic quantum walks via spin-orbit metasurfaces [52.77024349608834]
  We report ultra-long photonic quantum walks across several hundred optical modes, obtained by propagating a light beam through very few closely-stacked liquid-crystal metasurfaces. With this setup we engineer quantum walks up to 320 discrete steps, far beyond state-of-the-art experiments.
  arXiv  Detail & Related papers  (2022-03-28T19:37:08Z)
• 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)
• QuTiP-BoFiN: A bosonic and fermionic numerical hierarchical-equations-of-motion library with applications in light-harvesting, quantum control, and single-molecule electronics [51.15339237964982]
  "hierarchical equations of motion" (HEOM) is a powerful exact numerical approach to solve the dynamics. It has been extended and applied to problems in solid-state physics, optics, single-molecule electronics, and biological physics. We present a numerical library in Python, integrated with the powerful QuTiP platform, which implements the HEOM for both bosonic and fermionic environments.
  arXiv  Detail & Related papers  (2020-10-21T07:54:56Z)
• Scattering-based geometric shaping of photon-photon interactions [0.0]
  We construct an effective Hamiltonian of interacting bosons based on scattered radiation off vibrational modes. This architecture may be used to simulate the dynamics of interacting bosons, as well as designing tool for multi-qubit photonic gates in quantum computing applications.
  arXiv  Detail & Related papers  (2019-12-26T20:18:02Z)

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.