Quantum free-electron laser oscillator

• URL: http://arxiv.org/abs/2408.14103v1
• Date: Mon, 26 Aug 2024 08:43:19 GMT
• Title: Quantum free-electron laser oscillator
• Authors: Peter Kling, Enno Giese,
• Abstract summary: 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.
• Score: 0.11948485691768121
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: If the quantum mechanical recoil of the electron due to its scattering from the undulator and laser fields dominates the dynamics, a regime of the free-electron laser emerges where quantum effects lead to a drastic change in the radiation properties. However, the large interaction length required for a single-pass quantum free-electron laser impedes the experimental realization. The quantum free-electron laser oscillator, proposed in the present article, is a possible scheme to resolve this issue. Here we show that this device features a photon statistics that is closer to a coherent state in comparison to existing classical free-electron lasers. The device can be even operated in such a way that a sub-Poissonian statistics is obtained. Beside the benefit of demonstrating this pure quantum effect, 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.

Related papers

• Electrons herald non-classical light [0.44270590458998854]
  We demonstrate the coherent parametric generation of non-classical states of light by free electrons. We show that the quantized electron energy loss heralds the number of photons generated in a dielectric waveguide. The approach facilitates the tailored preparation of higher-number Fock and other optical quantum states.
  arXiv  Detail & Related papers  (2024-09-17T15:55:54Z)
• Generating optical cat states via quantum interference of multi-path free-electron-photons interactions [0.0]
  We propose a scheme to generate optical cat states based on the quantum interference of multi-path free-electron-photons interactions. We show that the Wigner negativity oscillates with the coupling strength, and the optical cat states are successfully generated with high fidelity.
  arXiv  Detail & Related papers  (2023-06-22T15:17:48Z)
• Low-energy Free-electron Rabi oscillation and its applications [2.2100616953391468]
  We propose free-electron Rabi oscillation by creating an isolated two-level system in a synthetic energy space induced by laser. The pi/2-pulse and pi-pulse in synthetic Rabi dynamics can function as 'beam splitters' and'mirrors' for free-electron interferometry.
  arXiv  Detail & Related papers  (2023-04-24T15:33:53Z)
• 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)
• Probing many-body correlations using quantum-cascade correlation spectroscopy [0.0]
  The radiative quantum cascade, i.e. the consecutive emission of photons from a ladder of energy levels, is of fundamental importance in quantum optics. Here, we use exciton polaritons to explore the cascaded emission of photons in the regime where individual transitions of the ladder are not resolved. Remarkably, the measured photon-photon correlations exhibit a strong dependence on the polariton energy, and therefore on the underlying polaritonic interaction strength.
  arXiv  Detail & Related papers  (2022-12-18T09:51:12Z)
• All-Optical Nuclear Quantum Sensing using Nitrogen-Vacancy Centers in Diamond [52.77024349608834]
  Microwave or radio-frequency driving poses a significant limitation for miniaturization, energy-efficiency and non-invasiveness of quantum sensors. We overcome this limitation by demonstrating a purely optical approach to coherent quantum sensing. Our results pave the way for highly compact quantum sensors to be employed for magnetometry or gyroscopy applications.
  arXiv  Detail & Related papers  (2022-12-14T08:34:11Z)
• 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)
• 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)
• On quantum free-electron laser: Superradience [91.3755431537592]
  An exact expression for the evolution of the laser amplitude is obtained. Reliable conditions for the superradiance of the high-gained laser are discussed.
  arXiv  Detail & Related papers  (2022-03-27T15:07:09Z)
• 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)
• Optical repumping of resonantly excited quantum emitters in hexagonal boron nitride [52.77024349608834]
  We present an optical co-excitation scheme which uses a weak non-resonant laser to reduce transitions to a dark state and amplify the photoluminescence from quantum emitters in hexagonal boron nitride (hBN) Our results are important for the deployment of atom-like defects in hBN as reliable building blocks for quantum photonic applications.
  arXiv  Detail & Related papers  (2020-09-11T10:15:22Z)

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.