Zobrazeno 1 - 10
of 6 463
pro vyhledávání: '"Sam, M."'
Autor:
Plummer, Daniel, Svensson, Pontus, Gericke, Dirk O., Hollebon, Patrick, Vinko, Sam M., Gregori, Gianluca
By performing an ensemble of molecular dynamics simulations, the model-dependent ionisation state is computed for strongly interacting systems self-consistently. This is accomplished through a free energy minimisation framework based on the technique
Externí odkaz:
http://arxiv.org/abs/2409.01078
Autor:
Crépisson, Céline, Amouretti, Alexis, Harmand, Marion, Sanloup, Chrystèle, Heighway, Patrick, Azadi, Sam, McGonegle, David, Campbell, Thomas, Chin, David Alexander, Smith, Ethan, Hansen, Linda, Forte, Alessandro, Gawne, Thomas, Lee, Hae Ja, Nagler, Bob, Shi, YuanFeng, Fiquet, Guillaume, Guyot, François, Makita, Mikako, Benuzzi-Mounaix, Alessandra, Vinci, Tommaso, Miyanishi, Kohei, Ozaki, Norimasa, Pikuz, Tatiana, Nakamura, Hirotaka, Sueda, Keiichi, Yabuuchi, Toshinori, Yabashi, Makina, Wark, Justin S., Polsin, Danae N., Vinko, Sam M.
We present measurements on Fe$_2$O$_3$ amorphization and melt under laser-driven shock compression up to 209(10) GPa via time-resolved in situ x-ray diffraction. At 122(3) GPa, a diffuse signal is observed indicating the presence of a non-crystalline
Externí odkaz:
http://arxiv.org/abs/2408.17204
Autor:
Campbell, Thomas, Svensson, Pontus, Larder, Brett, Plummer, Daniel, Vinko, Sam M., Gregori, Gianluca
We present a novel scheme for modelling quantum plasmas in the warm dense matter (WDM) regime via a hybrid smoothed particle hydrodynamic - molecular dynamic treatment, here referred to as 'Bohm SPH'. This treatment is founded upon Bohm's interpretat
Externí odkaz:
http://arxiv.org/abs/2408.03693
Modelling of warm dense hydrogen via explicit real time electron dynamics: Dynamic structure factors
Autor:
Svensson, Pontus, Aziz, Yusuf, Dornheim, Tobias, Azadi, Sam, Hollebon, Patrick, Skelt, Amy, Vinko, Sam M., Gregori, Gianluca
We present two methods for computing the dynamic structure factor for warm dense hydrogen without invoking either the Born-Oppenheimer approximation or the Chihara decomposition, by employing a wave packet description which resolves the electron dyna
Externí odkaz:
http://arxiv.org/abs/2407.08875
Knowing the characteristic relaxation time of free electrons in a dense plasma is crucial to our understanding of plasma equilibration and transport. However, experimental investigations of electron relaxation dynamics have been hindered by the ultra
Externí odkaz:
http://arxiv.org/abs/2405.04240
Autor:
Grayling, Matthew, Thorp, Stephen, Mandel, Kaisey S., Dhawan, Suhail, Uzsoy, Ana Sofia M., Boyd, Benjamin M., Hayes, Erin E., Ward, Sam M.
We apply the hierarchical probabilistic SED model BayeSN to analyse a sample of 475 SNe Ia (0.015 < z < 0.4) from Foundation, DES3YR and PS1MD to investigate the properties of dust in their host galaxies. We jointly infer the dust law $R_V$ populatio
Externí odkaz:
http://arxiv.org/abs/2401.08755
Autor:
Forte, Alessandro, Gawne, Thomas, El-Din, Karim K. Alaa, Humphries, Oliver S., Preston, Thomas R., Crépisson, Céline, Campbell, Thomas, Svensson, Pontus, Azadi, Sam, Heighway, Patrick, Shi, Yuanfeng, Chin, David A., Smith, Ethan, Baehtz, Carsten, Bouffetier, Victorien, Höppner, Hauke, McGonegle, David, Harmand, Marion, Collins, Gilbert W., Wark, Justin S., Polsin, Danae N., Vinko, Sam M.
Resonant inelastic x-ray scattering (RIXS) is a widely used spectroscopic technique, providing access to the electronic structure and dynamics of atoms, molecules, and solids. However, RIXS requires a narrow bandwidth x-ray probe to achieve high spec
Externí odkaz:
http://arxiv.org/abs/2402.00039
Autor:
Radic, Aleksandar, Lambrick, Sam M., von Jeinsen, Nick A., Jardine, Andrew P., Ward, David J.
Three-dimensional mapping of surface structures is important in a wide range of biological, technological, healthcare and research applications, including taxonomy, microfluidics and fabrication. Neutral helium atom beams have been established as a s
Externí odkaz:
http://arxiv.org/abs/2312.11114
To reduce systematic uncertainties in Type Ia supernova (SN Ia) cosmology, the host galaxy dust law shape parameter, $R_V$, must be accurately constrained. We thus develop a computationally-inexpensive pipeline, Bird-Snack, to rapidly infer dust popu
Externí odkaz:
http://arxiv.org/abs/2310.07753
Ionization is a problematic quantity in that it does not have a well-defined thermodynamic definition, yet it is a key parameter within plasma modelling. One still therefore aims to find a consistent and unambiguous definition for the ionization stat
Externí odkaz:
http://arxiv.org/abs/2309.09612