Vacuum birefringence at x-ray free-electron lasers

• URL: http://arxiv.org/abs/2105.13869v2
• Date: Sat, 21 Aug 2021 12:16:32 GMT
• Title: Vacuum birefringence at x-ray free-electron lasers
• Authors: Felix Karbstein, Chantal Sundqvist, Kai S. Schulze, Ingo Uschmann, Holger Gies, Gerhard G. Paulus
• Abstract summary: We study the perspectives of measuring the phenomenon of vacuum birefringence predicted by quantum electrodynamics using an x-ray free-electron laser (XFEL) alone.
• Score: 0.0
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: We study the perspectives of measuring the phenomenon of vacuum birefringence predicted by quantum electrodynamics using an x-ray free-electron laser (XFEL) alone. We devise an experimental scheme allowing the XFEL beam to collide with itself under a finite angle, and thus act as both pump and probe field for the effect. The signature of vacuum birefringence is encoded in polarization-flipped signal photons to be detected with high-purity x-ray polarimetry. Our findings for idealized scenarios underline that the discovery potential of solely XFEL-based setups can be comparable to those involving optical high-intensity lasers. For currently achievable scenarios, we identify several key details of the x-ray optical ingredients that exert a strong influence on the magnitude of the desired signatures.

Related papers

• Dynamics of Relativistic Vortex Electrons in External Laser Fields [2.4924880547843307]
  vortex electron interactions with electromagnetic fields are essential for advancing particle acceleration techniques, scattering theory in background fields, and obtaining novel electron beams for material diagnostics. We study the propagation of vortex electrons in linearly polarized (LP) and circularly polarized (CP) laser pulses, both separately and in their combined form in two-mode laser pulses. Our findings demonstrate the versatile control over vortex electrons via laser pulses, with our formalism providing a reference for vortex scattering in laser backgrounds and inspiring the laser-controlled achievement of novel vortex modes as targeted diagnostic probes for specialized materials.
  arXiv  Detail & Related papers  (2024-08-05T11:32:50Z)
• Learning Electron Bunch Distribution along a FEL Beamline by Normalising Flows [48.236222741059834]
  We introduce a surrogate model based on normalising flows for conditional phase-space representation of electron clouds in a FEL beamline. Achieved results let us discuss further benefits and limitations in exploitability of the models to gain deeper understanding of fundamental processes within a beamline.
  arXiv  Detail & Related papers  (2023-02-27T15:21:25Z)
• Entangled X-ray Photon Pair Generation by Free Electron Lasers [0.0]
  In X-ray optics, entangled photon pairs can be generated by X-ray parametric down conversion (XPDC) Free electron laser (FEL) has successfully lased at X-ray recently.
  arXiv  Detail & Related papers  (2022-08-02T09:49:50Z)
• AnaBHEL (Analog Black Hole Evaporation via Lasers) Experiment: Concept, Design, and Status [37.89976990030855]
  Accelerating relativistic mirror has long been recognized as a viable setting where the physics mimics that of black hole Hawking radiation. Chen and Mourou proposed a novel method to realize such a system by traversing an ultra-intense laser through a plasma target with a decreasing density. An international AnaBHEL Collaboration has been formed with the objectives of observing the analog Hawking radiation and shedding light on the information loss paradox.
  arXiv  Detail & Related papers  (2022-05-24T16:49:43Z)
• X-ray vacuum diffraction at finite spatio-temporal offset [0.0]
  We focus on vacuum diffraction as an individual signature of quantum vacuum nonlinearity. We study as a potential means to improve the signal-background toseparation in vacuum birefringence experiments.
  arXiv  Detail & Related papers  (2021-07-20T17:24:00Z)
• Phonon dephasing and spectral diffusion of quantum emitters in hexagonal Boron Nitride [52.915502553459724]
  Quantum emitters in hexagonal boron nitride (hBN) are emerging as bright and robust sources of single photons for applications in quantum optics. We study phonon dephasing and spectral diffusion of quantum emitters in hBN via resonant excitation spectroscopy at cryogenic temperatures.
  arXiv  Detail & Related papers  (2021-05-25T05:56:18Z)
• Continuum-electron interferometry for enhancement of photoelectron circular dichroism and measurement of bound, free, and mixed contributions to chiral response [39.58317527488534]
  We develop photoelectron interferometry based on laser-assisted extreme ultraviolet ionization for flexible and robust control of photoelectron circular dichroism in randomly oriented chiral molecules. A comb of XUV photons ionizes a sample of chiral molecules in the presence of a time-delayed infrared or visible laser pulse promoting interferences between components of the XUV-ionized photoelectron wave packet.
  arXiv  Detail & Related papers  (2021-04-15T15:20:57Z)
• Vacuum birefringence and diffraction at XFEL: from analytical estimates to optimal parameters [0.0]
  We study vacuum birefringence and x-ray photon scattering in the head-on collision of x-ray free electron and high-intensity laser pulses. Our results are essential for the identification of the optimal choice of parameters in a discovery experiment of vacuum birefringence at the high-intensity frontier.
  arXiv  Detail & Related papers  (2021-04-11T20:52:44Z)
• Conceptual Design Report for the LUXE Experiment [116.47875392913599]
  We will reach this hitherto inaccessible regime of quantum physics by analysing high-energy electron-photon and photon-photon interactions. The high photon flux predicted will enable a sensitive search for new physics beyond the Standard Model.
  arXiv  Detail & Related papers  (2021-02-03T12:27:10Z)
• A perfect X-ray beam splitter and its applications to time-domain interferometry and quantum optics exploiting free-electron lasers [0.0]
  X-ray free-electron lasers (FEL) deliver ultrabright X-ray pulses, but not the sequences of phase-coherent pulses required for time-domain interferometry and control of quantum states. We describe an FEL mode based on selective electron degradation bunch and transverse beam shaping in the accelerator, combined with a self-seeded photon emission scheme. Instead of splitting the photon pulses after their generation by the FEL, we split the electron bunch in the accelerator, prior to photon generation, to obtain phase-locked X-ray pulses with sub-femtosecond duration.
  arXiv  Detail & Related papers  (2020-10-01T07:35:22Z)
• 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.