100 citations · 631 across the 23 of their papers we have counts for
25 papers
Reconciling chemical models of X-ray Thomson Scattering with the Bethe -sum rule
Maximilian P. Böhme, Paul Hamann, Veronika A. Kruse +9
X-ray Thomson scattering (XRTS) is a key diagnostic for high-energy-density plasmas, which can exhibit significant quantum effects even at elevated temperatures. XRTS experiments a…
X-Ray Diagnostics Analysis Verification and Exploration (xDAVE) Code for the Prediction and Interpretation of X-Ray Thomson Scattering Experiments
Hannah M. Bellenbaum, Dave A. Chapman, Maximilian P. Böhme +8
X-ray Thomson scattering (XRTS) is a common diagnostic used in the warm dense matter (WDM) regime to estimate plasma parameters like density, temperature and charge state. Experime…
Spectral Deconvolution without the Deconvolution: Extracting Temperature from X-ray Thomson Scattering Spectra without the Source-and-Instrument Function
Thomas Gawne, Alina Kononov, Andrew Baczewski +7
X-ray Thomson scattering (XRTS) probes the dynamic structure factor of the system, but the measured spectrum is broadened by the combined source-and-instrument function (SIF) of th…
Static linear density response from X-ray Thomson scattering measurements: a case study of warm dense beryllium
Sebastian Schwalbe, Hannah Bellenbaum, Tilo Döppner +8
Linear response theory is ubiquitous throughout physics and plays a central role in the theoretical description of warm dense matter -- an extreme state that occurs within compact…
Green's function perspective on the nonlinear density response of quantum many-body systems
Jan Vorberger, Tobias Dornheim, Maximilian P. Böhme +2
We derive equations of motion for higher order density response functions using the theory of thermodynamic Green's functions. We also derive expressions for the higher order gener…
Ab initio Density Response and Local Field Factor of Warm Dense Hydrogen
Tobias Dornheim, Sebastian Schwalbe, Panagiotis Tolias +3
We present quasi-exact ab initio path integral Monte Carlo (PIMC) results for the partial static density responses and local field factors of hydrogen in the warm dense matter regi…
Ab initio path integral Monte Carlo simulations of warm dense two-component systems without fixed nodes: structural properties
Tobias Dornheim, Sebastian Schwalbe, Maximilian Böhme +3
We present extensive new \emph{ab initio} path integral Monte Carlo (PIMC) results for a variety of structural properties of warm dense hydrogen and beryllium. To deal with the fer…
Unraveling electronic correlations in warm dense quantum plasmas
Tobias Dornheim, Tilo Döppner, Panagiotis Tolias +10
The study of matter at extreme densities and temperatures has emerged as a highly active frontier at the interface of plasma physics, material science and quantum chemistry with di…
Bound state breaking and the importance of thermal exchange-correlation effects in warm dense hydrogen
Zhandos Moldabekov, Sebastian Schwalbe, Maximilian Böhme +5
Hydrogen at extreme temperatures and pressures is ubiquitous throughout our universe and naturally occurs in a variety of astrophysical objects. In addition, it is of key relevance…
Evidence of free-bound transitions in warm dense matter and their impact on equation-of-state measurements
Maximilian P. Böhme, Luke B. Fletcher, Tilo Döppner +8
Warm dense matter (WDM) is now routinely created and probed in laboratories around the world, providing unprecedented insights into conditions achieved in stellar atmospheres, plan…
Electronic density response of warm dense hydrogen on the nanoscale
Tobias Dornheim, Maximilian Böhme, Zhandos Moldabekov +1
The properties of hydrogen at warm dense matter (WDM) conditions are of high importance for the understanding of astrophysical objects and technological applications such as inerti…
X-ray Thomson scattering absolute intensity from the f-sum rule in the imaginary-time domain
Tobias Dornheim, Tilo Döppner, Andrew D. Baczewski +10
We present a formally exact and simulation-free approach for the normalization of X-ray Thomson scattering (XRTS) spectra based on the f-sum rule of the imaginary-time correlation…
Linear-response time-dependent density functional theory approach to warm dense matter with adiabatic exchange--correlation kernels
Zhandos A. Moldabekov, Michele Pavanello, Maximilian P. Boehme +2
We present a new methodology for the linear-response time-dependent density functional theory (LR-TDDFT) calculation of the dynamic density response function of warm dense matter i…
Extraction of the frequency moments of spectral densities from imaginary-time correlation function data
Tobias Dornheim, Damar C. Wicaksono, Juan E. Suarez-Cardona +5
We introduce an exact framework to compute the positive frequency moments of different dynamic properties from imaginary-time quantum Monte Carlo…
Electronic Density Response of Warm Dense Matter
Tobias Dornheim, Zhandos A. Moldabekov, Kushal Ramakrishna +11
Matter at extreme temperatures and pressures -- commonly known as warm dense matter (WDM) in the literature -- is ubiquitous throughout our Universe and occurs in a number of astro…
Physical insights from imaginary-time density--density correlation functions
Tobias Dornheim, Zhandos Moldabekov, Panagiotis Tolias +2
The accurate theoretical description of the dynamic properties of correlated quantum many-body systems such as the dynamic structure factor constitutes an importa…
Ab initio Static Exchange-Correlation Kernel across Jacob's Ladder without functional derivatives
Zhandos A. Moldabekov, Maximilian Böhme, Jan Vorberger +2
The electronic exchange-correlation (XC) kernel constitutes a fundamental input for the estimation of a gamut of material properties such as the dielectric characteristics, the the…
Ab initio path integral Monte Carlo simulations of hydrogen snapshots at warm dense matter conditions
Maximilian Böhme, Zhandos A. Moldabekov, Jan Vorberger +1
We combine ab initio path integral Monte Carlo (PIMC) simulations with fixed ion configurations from density functional theory molecular dynamics (DFT-MD) simulations to solve the…
Accurate Temperature Diagnostics for Matter under Extreme Conditions
Tobias Dornheim, Maximilian Böhme, Dominik Kraus +4
The experimental investigation of matter under extreme densities and temperatures as they occur for example in astrophysical objects and nuclear fusion applications constitutes one…
Electronic Density Response of Warm Dense Hydrogen: Ab initio Path Integral Monte Carlo Simulations
Maximilian Böhme, Zhandos Moldabekov, Jan Vorberger +1
The properties of hydrogen under extreme conditions are important for many applications, including inertial confinement fusion and astrophysical models. A key quantity is given by…
The Relevance of Electronic Perturbations in the Warm Dense Electron Gas
Zhandos Moldabekov, Tobias Dornheim, Maximilian Böhme +2
Warm dense matter (WDM) has emerged as one of the frontiers of both experimental and theoretical physics and is challenging traditional concepts of plasma, atomic, and condensed-ma…
Density Response of the Warm Dense Electron Gas beyond Linear Response Theory: Excitation of Harmonics
Tobias Dornheim, Maximilian Böhme, Zhandos A. Moldabekov +2
In a recent Letter, Dornheim et al. [PRL 125, 085001 (2020)] have investigated the nonlinear density response of the uniform electron gas in the warm dense matter regime. More spec…
Ab initio path integral Monte Carlo approach to the momentum distribution of the uniform electron gas at finite temperature without fixed nodes
Tobias Dornheim, Maximilian Böhme, Burkhard Militzer +1
We present extensive new \textit{ab intio} path integral Monte Carlo results for the momentum distribution function of the uniform electron gas (UEG) in the warm de…
Large-scale Neural Solvers for Partial Differential Equations
Patrick Stiller, Friedrich Bethke, Maximilian Böhme +6
Solving partial differential equations (PDE) is an indispensable part of many branches of science as many processes can be modelled in terms of PDEs. However, recent numerical solv…