Light propagation in a random three-dimensional ensemble of point scatterers in a waveguide: size-dependent switching between diffuse radiation transfer and Anderson localization of light

• URL: http://arxiv.org/abs/2105.01578v1
• Date: Tue, 4 May 2021 15:40:56 GMT
• Title: Light propagation in a random three-dimensional ensemble of point scatterers in a waveguide: size-dependent switching between diffuse radiation transfer and Anderson localization of light
• Abstract summary: Light transport in a disordered ensemble of resonant atoms placed in a waveguide is found to be very sensitive to the sizes of cross section of a waveguide. We have shown that the nature of radiation transfer changes from Anderson localization regime in a single-mode waveguide to a traditional diffuse transfer in a multi-mode one.
• Score: 0.0
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: Light transport in a disordered ensemble of resonant atoms placed in a waveguide is found to be very sensitive to the sizes of cross section of a waveguide. Based on self-consistent quantum microscopic model treating atoms as coherent radiating dipoles, we have shown that the nature of radiation transfer changes from Anderson localization regime in a single-mode waveguide to a traditional diffuse transfer in a multi-mode one. Moreover, the transmittance magnitude undergoes complex step-like dependence on the transverse sizes of a waveguide.

Related papers

• Phase-Selected Efficient Single-Photon Frequency Conversion via Local Fano Resonance in a Two-Giant-Atom Waveguide-QED System [3.8370533806309512]
  Efficient single-photon frequency conversion is investigated in a two-giant-atom waveguide-QED system.<n>We derive analytical four-channel scattering amplitudes and reveal that the inelastic transmission spectrum exhibits a multi-peak interference pattern.<n>This work reveals how phase-controlled local Fano resonance enables high-efficiency frequency conversion.
  arXiv  Detail & Related papers  (2026-07-08T07:27:05Z)
• Directional and correlated optical emission from a waveguide-engineered molecule with local control [7.419152335604612]
  We control the emission direction for a pair of quantum dots embedded in a bidirectional photonic crystal waveguide.<n>We show that the emission direction can be switched from left- to rightwards by manipulating the relative driving phase.<n>This work demonstrates a novel implementation of chiral quantum optics using quantum dots coupled via a non-chiral waveguide.
  arXiv  Detail & Related papers  (2026-04-07T19:46:52Z)
• Subradiant collective states for precision sensing via transmission spectra [0.0]
  We propose to harness subradiant states for quantum metrology.<n>We demonstrate that their collective optical response yields sharp, narrow features in the transmittance spectrum.<n>This improved sensitivity can be applied to atomic clock operation, spatially resolved imaging of emitter positions, and enables precise detection of both global and spatially varying detunings.
  arXiv  Detail & Related papers  (2025-12-09T19:10:04Z)
• 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)
• Tunable directional photon scattering from a pair of superconducting qubits [105.54048699217668]
  In the optical and microwave frequency ranges tunable directionality can be achieved by applying external magnetic fields. We demonstrate tunable directional scattering with just two transmon qubits coupled to a transmission line.
  arXiv  Detail & Related papers  (2022-05-06T15:21:44Z)
• Single-photon scattering in a giant-molecule waveguide-QED system [5.826796031213696]
  We study the coherent single-photon scattering in a one-dimensional waveguide coupled to a giant artificial molecule consisting of two coupled giant atoms. We obtain the exact expressions of the single-photon transmission and reflection amplitudes with the real-space approach. This paper will pave the way for the study of controllable single-photon devices based on the giant-molecule waveguide-QED systems.
  arXiv  Detail & Related papers  (2022-03-15T12:01:03Z)
• Excite atom-photon bound state inside the coupled-resonator waveguide coupled with a giant atom [1.5247768680767837]
  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.
  arXiv  Detail & Related papers  (2021-11-12T15:20:41Z)
• Directional transport along an atomic chain [0.0]
  We explore the possibility to create directional transport in an open, collective quantum system. We find that directional waveguides allow for an efficient outcoupling of light by reducing backscattering channels at the edges. A directional waveguide is shown to be more robust to localization, but at the cost of increased radiative losses.
  arXiv  Detail & Related papers  (2021-11-12T14:26:14Z)
• Atomic waveguide QED with atomic dimers [0.688204255655161]
  We study the possibility of observing the typical features of the conventional waveguide QED scenario in a one-dimensional subwavelength atomic array. For the role of emitters, we propose to use anti-symmetric states of atomic dimers as effective two-level systems. We uncover significant non-Markovian corrections which arise from both the finiteness of the array and through retardation effects.
  arXiv  Detail & Related papers  (2021-07-22T17:08:59Z)
• Tunable Anderson Localization of Dark States [146.2730735143614]
  We experimentally study Anderson localization in a superconducting waveguide quantum electrodynamics system. We observe an exponential suppression of the transmission coefficient in the vicinity of its subradiant dark modes. The experiment opens the door to the study of various localization phenomena on a new platform.
  arXiv  Detail & Related papers  (2021-05-25T07:52:52Z)
• Chiral excitation and effective bandwidth enhancement in tilted coupled optical waveguide lattices [0.0]
  Light escape from an optical waveguide side-coupled to a waveguide lattice provides a photonic analogue of the spontaneous emission process of an excited two-level atom in a one-dimensional array of cavities. According to the Fermi golden rule the decay process is prevented when the atomic resonance frequency falls in a stop band of the lattice, while time-reversal symmetry ensures that the spontaneously emitted photon has equal probability to propagate in opposite directions of the array. In this setting light excitation in the array is chiral, i.e. light propagates in a preferred direction of the lattice, and coupling is allowed even though the
  arXiv  Detail & Related papers  (2020-11-23T16:37:12Z)
• Microwave multiphoton conversion via coherently driven permanent dipole systems [68.8204255655161]
  We investigate a leaking single-mode quantized cavity field coupled with a resonantly driven two-level system possessing permanent dipoles. The frequencies of the interacting subsystems are being considered very different, e.g., microwave ranges for the cavity and optical domains for the frequency of the two-level emitter, respectively.
  arXiv  Detail & Related papers  (2020-08-12T16:20:44Z)
• 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)

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.