Controllable optical response and tunable sensing based on self interference in waveguide QED systems

• URL: http://arxiv.org/abs/2010.09319v2
• Date: Wed, 21 Oct 2020 03:11:18 GMT
• Title: Controllable optical response and tunable sensing based on self interference in waveguide QED systems
• Authors: Lei Du, Zhihai Wang, and Yong Li
• Abstract summary: We study the self interference effect of a resonator coupled with a bent waveguide at two separated ports. We consider a self-interference photon-magnon hybrid model and show phase-dependent Fano-like line shapes which have potential applications in frequency sensing.
• Score: 6.6873932283192765
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: We study the self interference effect of a resonator coupled with a bent waveguide at two separated ports. Such interference effects are shown to be similar for the cases of standing-wave and traveling-wave resonators, while in the system of two separated resonators indirectly coupled via a waveguide, the coupling forms and the related interference effects depend on which kind of resonators is chosen. Due to the self interference, controllable optical responses including tunable linewidth and frequency shift, and optical dark state can be achieved. Moreover, we consider a self-interference photon-magnon hybrid model and show phase-dependent Fano-like line shapes which have potential applications in frequency sensing. The photon-magnon hybridization can not only enhance the sensitivity and provide tunable working region, but also enables optical readout of the magnetic field strength in turn. The results in this paper provide a deeper insight into the self interference effect and its potential applications.

Related papers

• Controlling photons by phonons via giant atom in a waveguide QED setup [9.645624468000271]
  We investigate the single photon scattering in a phonon-photon hybrid system in the waveguide QED scheme. Our study paves the way for the potential application of giant atoms in the hybrid system.
  arXiv  Detail & Related papers  (2023-06-30T07:36:57Z)
• 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)
• Photon generation and entanglement in a double superconducting cavity [105.54048699217668]
  We study the dynamical Casimir effect in a double superconducting cavity in a quantum electrodynamics architecture. We study the creation of photons when the walls oscillate harmonically with a small amplitude.
  arXiv  Detail & Related papers  (2022-07-18T16:43:47Z)
• Controlled unidirectional reflectionlessness by coupling strength in a non-Hermitian waveguide quantum electrodynamics system [0.0]
  Unidirectional reflectionlessness is investigated in a waveguide quantum electrodynamics system. Results might find applications in designing quantum devices of photons, such as optical switches and single-photon transistors.
  arXiv  Detail & Related papers  (2022-07-12T10:03:57Z)
• Quantum coherent feedback control with photons [2.83114308547142]
  We study two-photon dynamics induced by the coherent feedback control of a cavity quantum electrodynamics (cavity-QED) system coupled to a waveguide. We analyze the dynamics of two-photon processes in this coherent feedback network in two scenarios.
  arXiv  Detail & Related papers  (2022-06-03T08:18:16Z)
• 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)
• Localized vibrational modes in waveguide quantum optomechanics with spontaneously broken PT symmetry [117.44028458220427]
  We study theoretically two vibrating quantum emitters trapped near a one-dimensional waveguide and interacting with propagating photons. In the regime of strong optomechanical interaction the light-induced coupling of emitter vibrations can lead to formation of spatially localized vibration modes, exhibiting parity-time symmetry breaking.
  arXiv  Detail & Related papers  (2021-06-29T12:45:44Z)
• 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)
• 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)
• Phonon-induced anomalous gauge potential for photonic isolation in frequency space [6.173238771499381]
  Photonic gauge potentials are crucial for manipulating charge-neutral photons like their counterpart electrons in the electromagnetic field. Here we experimentally demonstrate phonon-induced anomalous gauge potentials with non-inverted gauge phases in a spatial-frequency space. We construct photonic isolators in the frequency domain permitting nonreciprocal propagation of light along the frequency axis.
  arXiv  Detail & Related papers  (2020-08-07T06:44:00Z)
• Few-photon Transport in Fano-resonance waveguide geometries [0.0]
  We present a theoretical study of Fano interference effects in few-photon transport. A local defect in an optical waveguide induces a highly asymmetric transmission lineshape, characteristic of Fano interference. We show how the Fano interference effect can be exploited for the implementation of a Hong-Ou-Mandel switch.
  arXiv  Detail & Related papers  (2020-01-16T12:55:49Z)

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.