36 citations · 114 across the 17 of their papers we have counts for
20 papers
An \textit{ab initio} based compact analytical formula for inelastic x-ray scattering from spatially localized excitons
Joris Sturm, Duc Anh Truong, Andrei Benediktovitch +2
In this contribution we provide a compact model for the description of inelastic x-ray scattering of spatially localized excitons. We combine our analytical theory with first princ…
Generation of high-fluence and high-intensity hard x-ray attosecond pulses at European XFEL
Ichiro Inoue, Ulrike Boesenberg, Rustam Rysov +41
By combining hard x-ray attosecond pulses from the European XFEL with total-reflection focusing x-ray optics, we generated nanofocused hard x-ray attosecond pulses with intensities…
X-ray Coherent Attosecond Pulse Pair Spectroscopy
Zain Abhari, Thomas M. Linker, Thomas Kroll +14
X-ray free electron laser (XFEL) experiments using self-amplified spontaneous emission (SASE) pulses typically achieve temporal resolutions of order several femtoseconds, as the pu…
Experimentally constrained wave function method
Stasis Chuchurka, Milaim Kas, Andrei Benediktovitch +1
In this work, we extend the x-ray constrained wavefunction fitting approach, a key method in quantum crystallography for charge density reconstruction, to incorporate experimental…
Stochastic modeling of superfluorescence in compact systems
Stasis Chuchurka, Vladislav Sukharnikov, Andrei Benediktovitch +1
We propose an approach based on stochastic differential equations to describe superfluorescence in compact ensembles of multi-level emitters in the presence of various incoherent p…
Quantum stochastic trajectories for particles and fields based on positive P-representation
Stasis Chuchurka, Andrei Benediktovitch, Nina Rohringer
In this work we introduce a phase-space description based on the positive P representation for bosonic fields interacting with a system of quantum emitters. The formalism is applic…
Stochastic modeling of x-ray superfluorescence
Stasis Chuchurka, Andrei Benediktovitch, Špela Krušič +2
An approach to modeling the dynamics of x-ray amplified spontaneous emission and superfluorescence -- the phenomenon of collective x-ray emission initiated by intense pulses of X-r…
Second quantization of open quantum systems in Liouville space
V. Sukharnikov, S. Chuchurka, A. Benediktovitch +1
We present a theoretical framework based on second quantization in Liouville space to treat open quantum systems. We consider an ensemble of identical quantum emitters characterize…
Time-resolved quantum beats in the fluorescence of helium resonantly excited by XUV radiation
AC LaForge, A Benediktovitch, V Sukharnikov +18
We report on the observation of time-resolved quantum beats in the helium fluorescence from the transition 1s3p -> 1s2s, where the initial state is excited by XUV free-electron las…
Generation of Intense Phase-Stable Femtosecond Hard X-ray Pulse Pairs
Yu Zhang, Thomas Kroll, Clemens Weninger +24
Coherent nonlinear spectroscopies and imaging in the X-ray domain provide direct insight into the coupled motions of electrons and nuclei with resolution on the electronic length a…
Towards novel probes for valence charges via X-ray optical wave mixing
Christina Boemer, Dietrich Krebs, Andrei Benediktovitch +3
We present a combined theoretical and experimental study of X-ray optical wave mixing. This class of nonlinear phenomena combines the strengths of spectroscopic techniques from the…
Design and Characteristics of a Population Inversion X-ray Laser Oscillator
A. Halavanau, A. Benediktovitch, A. A. Lutman +5
Oscillators are at the heart of optical lasers, providing stable transform limited pulses. In contrast, X-ray free electron lasers use self-amplified spontaneous emission (SASE), r…
Self amplification of channeling radiation at Bragg diffraction conditions
Stasis Chuchurka, Andrei Benediktovitch, Aliaksandr Leonau +1
X-ray radiation of relativistic electrons passing through the crystal lattice (in case of channeling radiation) requires electrons with energies just from tens up to hundreds MeV,…
Radiation of a Charge Moving in a Wire Structure
Sergey N. Galyamin, Viktor V. Vorobev, Andrei Benediktovitch
A theoretical approach for describing the electromagnetic radiation produced by prolonged electron bunch propagating in the lattice of metallic wires of finite length is presented.…
Quantum theory of superfluorescence based on two-point correlation functions
Andrei Benediktovitch, Vinay P. Majety, Nina Rohringer
Irradiation of a medium by short intense pulses from x-ray / XUV free electron lasers can result in saturated photoionization of inner electronic shells. As a result an inversion o…
Extreme Ultraviolet Superfluorescence in Xenon and Krypton
L. Mercadier, A. Benediktovitch, C. Weninger +19
We present a comprehensive experimental and theoretical study on superfluorescence in the extreme ultraviolet wavelength regime. Focusing a high-intensity free-electron laser pulse…
Computation and visualization of accessible reciprocal space and resolution element in high-resolution X-ray diffraction mapping
T. Ulyanenkova, A. Zhylik, A. Benediktovitch +1
An approach to visualize the accessible reciprocal space accounting the goniometer angles limitation and the resolution element in the reciprocal space is presented. The shapes of…
Bunches of misfit dislocations on the onset of relaxation of SiGe/Si(001) epitaxial films revealed by high-resolution x-ray diffraction
Vladimir Kaganer, Tatjana Ulyanenkova, Andrei Benediktovitch +2
The experimental x-ray diffraction patterns of a SiGe/Si(001) epitaxial film with a low density of misfit dislocations are modeled by the Monte Carlo method. It is…
Linear Theory Analysis of Self-Amplified Parametric X-ray Radiation from High Current Density Electron Bunches
Ihar Lobach, Andrei Benediktovitch, Ilya Feranchuk
Linear theory of the parametric beam instability or the self-amplification of parametric x-ray radiation (PXR) from relativistic electrons in a crystal is considered taking into ac…
Time dependence of X-ray diffraction intensity of a crystal induced by an intense femtosecond X-ray pulse
A. Leonov, D. Ksenzov, A. Benediktovitch +2
The time evolution of the electron density and the resulting time dependence of X-ray diffraction peak intensity in a crystal irradiated by highly intense femtosecond pulses of an…