Zobrazeno 1 - 10
of 106
pro vyhledávání: '"Panagiotis Tolias"'
Autor:
Tobias Dornheim, Sebastian Schwalbe, Panagiotis Tolias, Maximilian P. Böhme, Zhandos A. Moldabekov, Jan Vorberger
Publikováno v:
Matter and Radiation at Extremes, Vol 9, Iss 5, Pp 057401-057401-20 (2024)
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 regime, from solid density conditions to the strongly compressed case. The
Externí odkaz:
https://doaj.org/article/06c5e26cbcb841cdbb70b56eac7396f0
Autor:
Marco De Angeli, Panagiotis Tolias, Francisco Suzuki-Vidal, Dario Ripamonti, Tim Ringrose, Hugo Doyle, Giambattista Daminelli, Jay Shadbolt, Peter Jarvis, Monica De Angeli
Publikováno v:
Nuclear Materials and Energy, Vol 41, Iss , Pp 101735- (2024)
Runaway electron incidence on plasma facing components triggers explosive events that are accompanied by the expulsion of fast solid debris. Subsequent dust-wall high speed impacts constitute a mechanism of wall damage and dust destruction. Empirical
Externí odkaz:
https://doaj.org/article/e79daf6aaad943829800dccb5eb71fdd
Publikováno v:
Instruments, Vol 8, Iss 3, p 42 (2024)
As an alternative to rigid anodes, a novel concept of X-ray targets consisting of a stream or a multitude of streams of fast tungsten microparticles has recently been proposed. Low-density microparticle streams resemble thin targets with nearly const
Externí odkaz:
https://doaj.org/article/df58f796624347f581cb4bda4c9e3fb9
Publikováno v:
Instruments, Vol 8, Iss 2, p 32 (2024)
The spatiotemporal resolution of diagnostic X-ray images obtained with rotating-anode X-ray tubes has remained limited as the development of rigid, high-performance target materials has slowed down. However, novel imaging techniques using finer detec
Externí odkaz:
https://doaj.org/article/c0b8a5f78a9e413f8c9d8a60191caf78
Publikováno v:
Matter and Radiation at Extremes, Vol 8, Iss 5, Pp 056601-056601-16 (2023)
An accurate theoretical description of the dynamic properties of correlated quantum many-body systems, such as the dynamic structure factor S(q, ω), is important in many fields. Unfortunately, highly accurate quantum Monte Carlo methods are usually
Externí odkaz:
https://doaj.org/article/17dc627f1956439fb2ac5c9be8aaa39f
Publikováno v:
Physical Review Research, Vol 4, Iss 3, p 033018 (2022)
We present extensive ab initio path integral Monte Carlo (PIMC) results for the spin-resolved density response of the uniform electron gas at warm dense matter conditions. This allows us to unambiguously assess the accuracy of previous theoretical ap
Externí odkaz:
https://doaj.org/article/eac0b9a829ef4b23959bc30e15cf1fd9
Nonlinear density response theory is revisited focusing on the harmonically perturbed finite temperature uniform electron gas. Within the non-interacting limit, brute force quantum kinetic theory calculations for the quadratic, cubic, quartic and qui
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4a301e09cc8d947b2a5c9d6aae61ae0c
http://arxiv.org/abs/2303.09223
http://arxiv.org/abs/2303.09223
Publikováno v:
Journal of Chemical Physics 158(2023)16
We study the linear energy response of the uniform electron gas to an external harmonic perturbation with a focus on resolving different contributions to the total energy. This has been achieved by carrying out highly accurate ab initio path integral
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e1af310570178aa9b49853b637eb5063
http://arxiv.org/abs/2302.06911
http://arxiv.org/abs/2302.06911
Publikováno v:
Molecules, Vol 26, Iss 3, p 669 (2021)
The mode coupling theory of supercooled liquids is combined with advanced closures to the integral equation theory of liquids in order to estimate the glass transition line of Yukawa one-component plasmas from the unscreened Coulomb limit up to the s
Externí odkaz:
https://doaj.org/article/f1399ee760f74f2685ffae89a62514ab
Autor:
Tobias Dornheim, Damar C. Wicaksono, Juan E. Suarez-Cardona, Panagiotis Tolias, Maximilian P. Böhme, Zhandos A. Moldabekov, Michael Hecht, Jan Vorberger
Publikováno v:
Physical Review B 107(2023)15, 155148
We introduce an exact framework to compute the positive frequency moments $M^{(\alpha)}(\mathbf{q})=\braket{\omega^\alpha}$ of different dynamic properties from imaginary-time quantum Monte Carlo data. As a practical example, we obtain the first five
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e82b4e30caa92c2fb8c81ea6184e6835
https://www.hzdr.de/publications/Publ-36422-1
https://www.hzdr.de/publications/Publ-36422-1