Zobrazeno 1 - 9
of 9
pro vyhledávání: '"Kushal Ramakrishna"'
Autor:
Sandeep Kumar, Hossein Tahmasbi, Kushal Ramakrishna, Mani Lokamani, Svetoslav Nikolov, Julien Tranchida, Mitchell A. Wood, Attila Cangi
Publikováno v:
Physical Review Research, Vol 5, Iss 3, p 033162 (2023)
We present a study on the transport and material properties of aluminum spanning from ambient to warm dense matter conditions using a machine-learned interatomic potential (ML-IAP). Prior research has utilized ML-IAPs to simulate phenomena in warm de
Externí odkaz:
https://doaj.org/article/c1236b7a1b884fbc98656632a534cb39
Autor:
Tobias Dornheim, Zhandos A. Moldabekov, Kushal Ramakrishna, Panagiotis Tolias, Andrew D. Baczewski, Dominik Kraus, Thomas R. Preston, David A. Chapman, Maximilian P. Böhme, Tilo Döppner, Frank Graziani, Michael Bonitz, Attila Cangi, Jan Vorberger
Publikováno v:
Physics of Plasmas 30(2023), 032705
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 astrophysical objects such as giant planet interiors and brown dwarfs. More
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f17171f54d6b5feeb6d9ec23d605a0a0
https://www.hzdr.de/publications/Publ-36425-1
https://www.hzdr.de/publications/Publ-36425-1
Publikováno v:
Physical Review B 107(2023)11, 115131
arXiv:2203.06025 [cond-mat.mtrl-sci]: https://arxiv.org/abs/2203.06025
arXiv:2203.06025 [cond-mat.mtrl-sci]: https://arxiv.org/abs/2203.06025
Understanding the electronic transport properties of iron under high temperatures and pressures is essential for constraining geophysical processes. The difficulty of reliably measuring these properties under Earth-core conditions calls for sophistic
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3e44aa8f46198ad1470446597f4c3992
http://arxiv.org/abs/2203.06025
http://arxiv.org/abs/2203.06025
Autor:
Tobias Dornheim, Maximilian Böhme, Attila Cangi, Kushal Ramakrishna, Shigenori Tanaka, Jan Vorberger
We present an effective static approximation (ESA) to the local field correction (LFC) of the electron gas that enables highly accurate calculations of electronic properties like the dynamic structure factor S(q,ω), the static structure factor S(q),
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a5b4ae20fcbaa3ebfd72294ca6692e0c
http://arxiv.org/abs/2008.02165
http://arxiv.org/abs/2008.02165
Publikováno v:
Physical Review B 101(2020), 195129
arXiv:2002.11574v2: https://arxiv.org/abs/2002.11574
arXiv:2002.11574v2: https://arxiv.org/abs/2002.11574
We use density functional molecular dynamics (DFT-MD) to study the effect of finite temperature exchange-correlation (xc) in Hydrogen. Using the Kohn-Sham approach, the xc energy of the system, $E_{xc}(r_{s})$ is replaced by the xc free energy $f_{xc
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::352a0544628561020f08123004c60f4e
The theoretical understanding of plasmon behavior is crucial for an accurate interpretation of inelastic scattering diagnostics in many experiments. We highlight the utility of linear response time-dependent density functional theory (LR-TDDFT) as a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a0b69450cd2c6e036999bc4ab67498e2
Autor:
Kushal Ramakrishna, Jan Vorberger
Publikováno v:
Journal of Physics: Condensed Matter 32(2020)9, 095401
The electronic structure and dielectric properties of the diamond, body centered cubic diamond (bc8), and hexagonal diamond (lonsdaleite) phases of carbon are computed using density functional theory and many-body perturbation theory with the emphasi
Autor:
T. Toncian, M. Zhang, Clemens Prescher, Dirk O. Gericke, Sebastian Göde, M. Lokamani, D. Chekrygina, M. Makita, Roger Falcone, A. Pelka, Stefan P. Hau-Riege, K. Voigt, T. R. Preston, N. J. Hartley, Marion Harmand, Dominik Kraus, L. G. Huang, Oliver Humphries, Kushal Ramakrishna, Valerio Cerantola, A. K. Schuster, Tilo Döppner, Erik Brambrink, Karen Appel, Ulf Zastrau, Katerina Falk, Luke Fletcher, Michal Smid, A. Amouretti, Jan Vorberger
Publikováno v:
Physics of plasmas 28(8), 082701 (2021). doi:10.1063/5.0048150
Physics of Plasmas
Physics of Plasmas, American Institute of Physics, 2021, 28 (8), pp.082701. ⟨10.1063/5.0048150⟩
Physics of Plasmas, 2021, 28 (8), pp.082701. ⟨10.1063/5.0048150⟩
Physics of Plasmas 28(2021), 082701
Physics of Plasmas
Physics of Plasmas, American Institute of Physics, 2021, 28 (8), pp.082701. ⟨10.1063/5.0048150⟩
Physics of Plasmas, 2021, 28 (8), pp.082701. ⟨10.1063/5.0048150⟩
Physics of Plasmas 28(2021), 082701
International audience; We present a proof-of-principle study demonstrating x-ray Raman Spectroscopy (XRS) from carbon samples at ambient conditions in conjunction with other common diagnostics to study warm dense matter, performed at the high energy