On quantum free-electron laser: Superradience

• URL: http://arxiv.org/abs/2203.14323v3
• Date: Wed, 3 May 2023 15:16:35 GMT
• Title: On quantum free-electron laser: Superradience
• Authors: Alexander Iomin
• Abstract summary: An exact expression for the evolution of the laser amplitude is obtained. Reliable conditions for the superradiance of the high-gained laser are discussed.
• Score: 91.3755431537592
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: A quantum model of a free-electron laser is considered for the many electron system. An exact expression for the evolution of the laser amplitude is obtained in the framework of the coherent state consideration. Reliable conditions for the superradiance of the high-gained laser is discussed for the short time limit of the exact solution.

Related papers

• Quantum free-electron laser oscillator [0.11948485691768121]
  A single-pass quantum free-electron laser has a large interaction length that impedes the experimental realization. Here we show that a quantum free-electron laser is closer to a coherent state in comparison to existing classical free-electron lasers. The narrowing of the photon distribution implies reduced intensity fluctuations of the emitted radiation, which in turn lead to decreased noise in imaging experiments or to an enhanced sensitivity in interferometric applications.
  arXiv  Detail & Related papers  (2024-08-26T08:43:19Z)
• Multiphoton processes and higher resonances in the quantum regime of the free-electron laser [0.17767466724342063]
  We show that relying on different resonances of the initial momentum of the electrons increases the number of emitted photons. We investigate how multiphoton processes influence the dynamics in the deep quantum regime.
  arXiv  Detail & Related papers  (2023-03-28T06:33:52Z)
• Phase Randomness in a Semiconductor Laser: the Issue of Quantum Random Number Generation [83.48996461770017]
  This paper describes theoretical and experimental methods for estimating the degree of phase randomization in a gain-switched laser. We show that the interference signal remains quantum in nature even in the presence of classical phase drift in the interferometer.
  arXiv  Detail & Related papers  (2022-09-20T14:07:39Z)
• Oscillator laser model [77.34726150561087]
  Diffusion coefficients, consistent with the model and necessary for solving quantum nonlinear laser equations analytically, are found. Collective Rabi splitting peaks are predicted in the intensity fluctuation spectra of the superradiant lasers.
  arXiv  Detail & Related papers  (2022-06-11T07:38:31Z)
• Quantum density matrix theory for a laser without adiabatic elimination of the population inversion: transition to lasing in the class-B limit [62.997667081978825]
  No class-B quantum density-matrix model is available to date, capable of accurately describing coherence and photon correlations within a unified theory. Here we carry out a density-matrix theoretical approach for generic class-B lasers, and provide closed equations for the photonic and atomic reduced density matrix in the Fock basis of photons. This model enables the study of few-photon bifurcations and non-classical photon correlations in class-B laser devices, also leveraging quantum descriptions of coherently coupled nanolaser arrays.
  arXiv  Detail & Related papers  (2022-05-26T16:33:51Z)
• Perturbation approach in Heisenberg equations for lasers [77.34726150561087]
  It is found that fluctuations of population significantly affect spontaneous and stimulated emissions into the lasing mode. The method can be applied to various resonant systems in quantum optics.
  arXiv  Detail & Related papers  (2022-01-08T18:24:37Z)
• High-gain quantum free-electron laser: long-time dynamics and requirements [0.1141780544549208]
  We study the long-time dynamics of a high-gain free-electron laser in the quantum regime. We find that the realization of a seeded Quantum FEL is more feasible than self-amplified spontaneous emission.
  arXiv  Detail & Related papers  (2021-03-24T15:26:03Z)
• Towards atomic-resolution quantum measurements with coherently-shaped free electrons [0.0]
  We propose a technique that leverages free electrons that are coherently-shaped by laser pulses to measure quantum coherence in materials. We show how the energy spectrum of laser-shaped electrons enables measuring the qubit Block-sphere state and decoherence time. Our scheme could be implemented in an ultrafast transmission electron microscope (UTEM), opening the way towards the full characterization of the state of quantum systems.
  arXiv  Detail & Related papers  (2020-10-31T19:54:06Z)
• Proposal for a continuous wave laser with linewidth well below the standard quantum limit [0.0]
  We show that it is possible to reduce the laser linewidth by a factor equal to the number of photons in the laser cavity below the standard quantum limit. This is an example of how quantum engineering techniques can inspire us to re-imagine the limits of conventional quantum systems.
  arXiv  Detail & Related papers  (2020-09-07T18:00:04Z)
• 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)

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.