[HTML][HTML] Electronic density response of warm dense matter

T Dornheim, ZA Moldabekov, K Ramakrishna… - Physics of …, 2023 - pubs.aip.org
Matter at extreme temperatures and pressures—commonly known as warm dense matter
(WDM)—is ubiquitous throughout our Universe and occurs in astrophysical objects such as …

Path integral Monte Carlo ground state approach: Formalism, implementation, and applications

Y Yan, D Blume - Journal of Physics B: Atomic, Molecular and …, 2017 - iopscience.iop.org
Monte Carlo techniques have played an important role in understanding strongly correlated
systems across many areas of physics, covering a wide range of energy and length scales …

Statistical and computational intelligence approach to analytic continuation in Quantum Monte Carlo

G Bertaina, DE Galli, E Vitali - Advances in Physics: X, 2017 - Taylor & Francis
The term analytic continuation emerges in many branches of Mathematics, Physics, and,
more generally, applied Science. Generally speaking, in many situations, given some …

Prediction of a roton-type feature in warm dense hydrogen

P Hamann, L Kordts, A Filinov, M Bonitz… - Physical Review …, 2023 - APS
In a recent Letter [T. Dornheim, Phys. Rev. Lett. 121, 255001 (2018) 0031-9007
10.1103/PhysRevLett. 121.255001], it was predicted on the basis of ab initio quantum Monte …

[HTML][HTML] Effective electronic forces and potentials from ab initio path integral Monte Carlo simulations

T Dornheim, P Tolias, ZA Moldabekov… - The Journal of …, 2022 - pubs.aip.org
The rigorous description of correlated quantum many-body systems constitutes one of the
most challenging tasks in contemporary physics and related disciplines. In this context, a …

Path integral Monte Carlo approach to the structural properties and collective excitations of liquid without fixed nodes

T Dornheim, ZA Moldabekov, J Vorberger, B Militzer - Scientific Reports, 2022 - nature.com
Due to its nature as a strongly correlated quantum liquid, ultracold helium is characterized
by the nontrivial interplay of different physical effects. Bosonic 4 He exhibits superfluidity and …

One-Dimensional Liquid : Dynamical Properties beyond Luttinger-Liquid Theory

G Bertaina, M Motta, M Rossi, E Vitali, DE Galli - Physical review letters, 2016 - APS
We compute the zero-temperature dynamical structure factor of one-dimensional liquid He 4
by means of state-of-the-art quantum Monte Carlo and analytic continuation techniques. By …

Computation of dynamical correlation functions for many-fermion systems with auxiliary-field quantum Monte Carlo

E Vitali, H Shi, M Qin, S Zhang - Physical Review B, 2016 - APS
We address the calculation of dynamical correlation functions for many fermion systems at
zero temperature, using the auxiliary-field quantum Monte Carlo method. The two …

Microscopic dynamics of superfluid : A comprehensive study by inelastic neutron scattering

K Beauvois, J Dawidowski, B Fåk, H Godfrin… - Physical Review B, 2018 - APS
The dynamic structure factor of superfluid He 4 has been investigated at very low
temperatures by inelastic neutron scattering. The measurements combine different incoming …

Dynamic many-body theory: Multiparticle fluctuations and the dynamic structure of

CE Campbell, E Krotscheck, T Lichtenegger - Physical Review B, 2015 - APS
We present further progress in a systematic approach to the microscopic understanding of
the dynamics of strongly interacting quantum fluids. Employing the concept of dynamic …