Collective emission of an atomic beam into an off-resonant cavity mode

• URL: http://arxiv.org/abs/2107.05661v1
• Date: Mon, 12 Jul 2021 18:06:25 GMT
• Title: Collective emission of an atomic beam into an off-resonant cavity mode
• Authors: Simon B. J\"ager, Haonan Liu, John Cooper, Murray J. Holland
• Abstract summary: We study the collective emission of a beam of atomic dipoles into an optical cavity. By developing a theoretical description of the coupled atom-cavity dynamics we analyze the stationary atomic configurations. We find that the pulling is small if the cavity linewidth is much larger than the collective linewidth of the atomic beam.
• Score: 1.5749416770494706
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: We study the collective emission of a beam of atomic dipoles into an optical cavity. Our focus lies on the effect of a finite detuning between the atomic transition frequency and the cavity resonance frequency. By developing a theoretical description of the coupled atom-cavity dynamics we analyze the stationary atomic configurations including a superradiant phase where the atoms undergo continuous monochromatic collective emission. In addition, we derive an analytical formula for the cavity pulling coefficient which characterizes the displacement of the emission frequency towards the cavity frequency. We find that the pulling is small if the cavity linewidth is much larger than the collective linewidth of the atomic beam. This regime is desired for building stable lasers because the emission frequency is robust against cavity length fluctuations. Furthermore, we investigate the stability of the atomic phases and compare our theoretical predictions with numerical results. Remarkably, we also find polychromatic emission regimes, where the spectrum has several frequency components while the light output is still superradiant.

Related papers

• Continuous cavity-QED with an atomic beam [4.318157997343946]
  Atoms coupled to cavities provide an exciting playground for the study of fundamental interactions of atoms mediated through a common channel. Many of the applications of cavity-QED and cold-atom experiments more broadly, suffer from limitations caused by the transient nature of an atomic loading cycle. We present a machine designed to produce a continuous flux of collimated atoms that traverse an optical cavity.
  arXiv  Detail & Related papers  (2024-07-26T11:13:53Z)
• Self-Ordering, Cooling and Lasing in an Ensemble of Clock Atoms [0.0]
  Active atomic clocks are predicted to provide better short-term stability and robustness against thermal fluctuations than typical feedback-based optical atomic clocks. We study spatial self-organization in a transversely driven ensemble of clock atoms inside an optical resonator and coherent light emission from the cavity.
  arXiv  Detail & Related papers  (2024-07-22T20:54:03Z)
• Coupled states of cold 174-Yb atoms in a high-finesse cavity [0.0]
  We experimentally and theoretically study the formation of dressed states emerging from strong collective coupling of the narrow intercombination line of Yb atoms to a single mode of a high-finesse optical cavity.
  arXiv  Detail & Related papers  (2024-04-18T13:27:42Z)
• 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)
• Dynamics of Transmon Ionization [94.70553167084388]
  We numerically explore the dynamics of a driven transmon-resonator system under strong and nearly resonant measurement drives. We find clear signatures of transmon ionization where the qubit escapes out of its cosine potential.
  arXiv  Detail & Related papers  (2022-03-21T18:00:15Z)
• Collective emission of photons from dense, dipole-dipole interacting atomic ensembles [0.0]
  We study the collective radiation properties of cold, trapped ensembles of atoms. We find that the emission rate of a photon from an excited atomic ensemble is strongly enhanced for an elongated cloud.
  arXiv  Detail & Related papers  (2020-09-18T06:44:02Z)
• Regular and bistable steady-state superradiant phases of an atomic beam traversing an optical cavity [1.3854111346209868]
  We investigate the different photon emission regimes created by a preexcited and collimated atomic beam passing through a single mode of an optical cavity. We analyze the different superradiant regimes and the quantum critical crossover boundaries.
  arXiv  Detail & Related papers  (2020-09-11T20:31:52Z)
• Maximum refractive index of an atomic medium [58.720142291102135]
  All optical materials with a positive refractive index have a value of index that is of order unity. Despite the giant response of an isolated atom, we find that the maximum index does not indefinitely grow with increasing density. We propose an explanation based upon strong-disorder renormalization group theory.
  arXiv  Detail & Related papers  (2020-06-02T14:57:36Z)
• Resonant high-energy bremsstrahlung of ultrarelativistic electrons in the field of a nucleus and a pulsed light wave [68.8204255655161]
  Research investigates the resonant high-energy spontaneous bremsstrahlung of ultrarelativistic electrons with considerable energies in the field of a nucleus and a quasimonochromatic laser wave.
  arXiv  Detail & Related papers  (2020-04-05T16:27:11Z)
• Nitrogen-vacancy defect emission spectra in the vicinity of an adjustable silver mirror [62.997667081978825]
  Optical emitters of quantum radiation in the solid state are important building blocks for emerging technologies. We experimentally study the emission spectrum of an ensemble of nitrogen-vacancy defects implanted around 8nm below the planar diamond surface.
  arXiv  Detail & Related papers  (2020-03-31T10:43:26Z)
• Optical Magnetometer: Quantum Resonances at pumping repetition rate of 1/n of the Larmor frequency [58.720142291102135]
  Quantum sub-resonances at a repetition rate of $1/n$ of the Larmor frequency of the magnetic field inside the shield are experimentally observed and theoretically explained. Investigations in single alkali atoms cells as well as mixed alkali atoms of K and Rb are presented.
  arXiv  Detail & Related papers  (2020-02-20T09:14:56Z)

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.