Journal Article

PUBDB-2024-06623

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Hermitian stochastic methodology for x-ray superfluorescence

Chuchurka, S. (Corresponding author)Extern* ; Sukharnikov, V.Extern* ; Rohringer, N.XFEL.EU*DESY*

2024
Inst. Woodbury, NY

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Please use a persistent id in citations: doi:10.1103/PhysRevA.109.063705  doi:10.3204/PUBDB-2024-06623

Report No.: arXiv:2402.04069

Abstract: A recently introduced theoretical framework for modeling the dynamics of x-ray amplified spontaneous emission is based on stochastic sampling of the density matrix of quantum emitters and the radiation field, similarly to other phase-space sampling techniques. While based on first principles and providing valuable theoretical insights, the original stochastic differential equations exhibit divergences and numerical instabilities. Here, we resolve this issue by accounting the stochastic components perturbatively. The refined formalism accurately reproduces the properties of spontaneous emission and proves universally applicable for describing all stages of collective x-ray emission in paraxial geometry, including spontaneous emission, amplified spontaneous emission, and the nonlinear regime. Through numerical examples, we analyze key features of superfluorescence in a one-dimensional approximation. Importantly, single realizations of the underlying stochastic equations can be fully interpreted as individual experimental observations of superfluorescence.

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Contributing Institute(s):

1. Theoretical ultrafast X-ray science (FS-TUX)

Research Program(s):

1. 631 - Matter – Dynamics, Mechanisms and Control (POF4-631) (POF4-631)
2. DFG project G:(GEPRIS)390715994 - EXC 2056: CUI: Advanced Imaging of Matter (390715994) (390715994)
3. HIDSS-0002 - DASHH: Data Science in Hamburg - Helmholtz Graduate School for the Structure of Matter (2019_IVF-HIDSS-0002) (2019_IVF-HIDSS-0002)
4. DFG project G:(GEPRIS)194651731 - EXC 1074: Hamburger Zentrum für ultraschnelle Beobachtung (CUI): Struktur, Dynamik und Kontrolle von Materie auf atomarer Skala (194651731) (194651731)

Experiment(s):

1. No specific instrument

Appears in the scientific report 2024

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Database coverage:
; ; ; Clarivate Analytics Master Journal List ; Current Contents - Electronics and Telecommunications Collection ; Current Contents - Physical, Chemical and Earth Sciences ; Essential Science Indicators ; SCOPUS ; Science Citation Index Expanded ; Web of Science Core Collection

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Linked articles:

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Preprint Chuchurka, S. (Corresponding author)Extern* ; Sukharnikov, V.Extern* ; Rohringer, N.XFEL.EU*DESY*
Hermitian stochastic methodology for x-ray superfluorescence
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