Excite atom-photon bound state inside the coupled-resonator waveguide coupled with a giant atom

• URL: http://arxiv.org/abs/2111.06764v1
• Date: Fri, 12 Nov 2021 15:20:41 GMT
• Title: Excite atom-photon bound state inside the coupled-resonator waveguide coupled with a giant atom
• Authors: Han Xiao, Luojia Wang, Zhenghong Li, Xianfeng Chen, Luqi Yuan
• Abstract summary: We show that a bound state, where the light shows the localization effect and atom exhibits a subradiant decay time, can be excited by a propagating photon. Our work provides an alternative method for actively localizing the photon in a modulated coupled-resonator waveguide system interacting with giant atom.
• Score: 1.5247768680767837
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: It is of fundamental interest in controlling the light-matter interaction for a long time in the field of quantum information processing. However, usual excitation with the propagating photon can hardly excite a localized state of light while keeping the atom under a subradiant decay in an atom-waveguide system. Here, we propose a model of coupling between a giant atom and the dynamically-modulated coupled-resonator waveguide and find that a bound state, where the light shows the localization effect and atom exhibits a subradiant decay time, can be excited by a propagating photon. An analytical treatment based on the separation of the propagating states and localized states of light has been used and provides inspiring explanation of our finding, i.e., a propagating photon can be efficiently converted to the localized light through the light-atom interactions in three resonators at frequency difference precisely equivalent to external modulation frequency. Our work therefore provides an alternative method for actively localizing the photon in a modulated coupled-resonator waveguide system interacting with giant atom, and also points out a way to study the light-atom interaction in a synthetic frequency dimension that holds the similar Hamiltonian.

Related papers

• Tunable photon scattering by an atom dimer coupled to a band edge of a photonic crystal waveguide [0.0]
  Quantum emitters trapped near photonic crystal waveguides have emerged as an exciting platform for realizing novel quantum matter-light interfaces. We study tunable photon scattering in a photonic crystal waveguide coupled to an atom dimer with an arbitrary spatial separation.
  arXiv  Detail & Related papers  (2024-09-30T13:57:58Z)
• Collective coupling of driven multilevel atoms and its effect on four-wave mixing [0.0]
  We present a systematic analysis of the cooperative effects arising in driven systems composed of multilevel atoms coupled via a common electromagnetic environment. The dependence of single and two-photon correlations are studied in detail for each region by varying atomic orientations. It is found that the anisotropy of the dipole-dipole interaction and its wave nature are essential to understand the behavior of the photons correlations.
  arXiv  Detail & Related papers  (2024-04-04T17:36:24Z)
• Resonant Parametric Photon Generation in Waveguide-coupled Quantum Emitter Arrays [83.88591755871734]
  We have developed a theory of parametric photon generation in the waveguides coupled to arrays of quantum emitters with temporally modulated resonance frequencies. Such generation can be interpreted as a dynamical Casimir effect. We demonstrate numerically and analytically how the emission directionality and photon-photon correlations can be controlled by the phases of the modulation.
  arXiv  Detail & Related papers  (2023-02-24T18:07:49Z)
• Correlated steady states and Raman lasing in continuously pumped and probed atomic ensembles [68.8204255655161]
  We consider an ensemble of Alkali atoms that are continuously optically pumped and probed. Due to the collective scattering of photons at large optical depth, the steady state of atoms does not correspond to an uncorrelated tensor-product state. We find and characterize regimes of Raman lasing, akin to the model of a superradiant laser.
  arXiv  Detail & Related papers  (2022-05-10T06:54:54Z)
• Optical manipulation of matter waves [0.0]
  We show that matter waves can be optically manipulated via inelastic interactions with optical fields. Results support optical manipulation of matter waves as a powerful tool for microscopy, spectroscopy, and the exploration of novel fundamental phenomena associated with light-atom interactions.
  arXiv  Detail & Related papers  (2022-03-14T16:39:54Z)
• Superradiance in dynamically modulated Tavis-Cumming model with spectral disorder [62.997667081978825]
  Superradiance is the enhanced emission of photons from quantum emitters collectively coupling to the same optical mode. We study the interplay between superradiance and spectral disorder in a dynamically modulated Tavis-Cummings model.
  arXiv  Detail & Related papers  (2021-08-18T21:29:32Z)
• Waveguide quantum electrodynamics: collective radiance and photon-photon correlations [151.77380156599398]
  Quantum electrodynamics deals with the interaction of photons propagating in a waveguide with localized quantum emitters. We focus on guided photons and ordered arrays, leading to super- and sub-radiant states, bound photon states and quantum correlations with promising quantum information applications.
  arXiv  Detail & Related papers  (2021-03-11T17:49:52Z)
• Vectorial polaritons in the quantum motion of a levitated nanosphere [0.0]
  We show the generation of phonon-polaritons in the quantum motion of an optically-levitated nanosphere. Our results pave the way to novel protocols for quantum information transfer between photonic and phononic components.
  arXiv  Detail & Related papers  (2020-12-30T18:26:28Z)
• Hyperentanglement in structured quantum light [50.591267188664666]
  Entanglement in high-dimensional quantum systems, where one or more degrees of freedom of light are involved, offers increased information capacities and enables new quantum protocols. Here, we demonstrate a functional source of high-dimensional, noise-resilient hyperentangled states encoded in time-frequency and vector-vortex structured modes. We generate highly entangled photon pairs at telecom wavelength that we characterise via two-photon interference and quantum state tomography, achieving near-unity visibilities and fidelities.
  arXiv  Detail & Related papers  (2020-06-02T18:00:04Z)
• Quantum interface between light and a one-dimensional atomic system [58.720142291102135]
  We investigate optimal conditions for the quantum interface between a signal photon pulse and one-dimensional chain consisting of a varied number of atoms. The efficiency of interaction is mainly limited by achieved overlap and coupling of the waveguide evanescent field with the trapped atoms.
  arXiv  Detail & Related papers  (2020-04-11T11:43:54Z)
• Interaction signatures and non-Gaussian photon states from a strongly driven atomic ensemble coupled to a nanophotonic waveguide [0.0]
  We study theoretically a laser-driven one-dimensional chain of atoms interfaced with the guided optical modes of a nanophotonic waveguide. We find that the fluorescence excitation line shape changes as the number of atoms is increased, eventually undergoing a splitting that provides evidence for the waveguide-mediated all-to-all interactions.
  arXiv  Detail & Related papers  (2020-03-03T16:13:34Z)

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.