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Related papers: Post-radiation phenomena in thermally treated Kr m…

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The relic abundance of Dark Matter (DM) produced via thermal freeze-in is sensitive to the thermal history during and after cosmic reheating. In minimal models, this opens up the possibility to make predictions for collider observables by…

High Energy Physics - Phenomenology · Physics 2026-04-20 Marco Drewes , Yannis Georis , Mubarak A. S. Mohammed , Sebastian Zell

Characteristic properties of secondary electrons emitted from irradiated two-dimensional materials arise from multi-length and time-scale relaxation processes that connect the initial non-equilibrium excited electron distribution with their…

We examine the radiation emitted by high energy positrons channeled into silicon crystal samples. The positrons are modeled as semiclassical vector currents coupled to an Unruh-DeWitt detector to incorporate any local change in the energy…

General Relativity and Quantum Cosmology · Physics 2021-07-28 Morgan H. Lynch , Eliahu Cohen , Yaron Hadad , Ido Kaminer

We present a comprehensive mathematical model and experimental measurements for the evolution of a trapped particle ensemble driven by collisions with a room-temperature background vapor. The model accommodates any trap geometry, confining…

Atomic Physics · Physics 2024-05-30 Avinash Deshmukh , Riley A. Stewart , Pinrui Shen , James L. Booth , Kirk W. Madison

In general relativistic magneto-hydrodynamic (GRMHD) simulations, accreted magnetic flux on the black hole horizon episodically decays, during which magnetic reconnection heats up the plasma near the horizon, potentially powering…

High Energy Astrophysical Phenomena · Physics 2023-09-26 He Jia , Bart Ripperda , Eliot Quataert , Christopher J. White , Koushik Chatterjee , Alexander Philippov , Matthew Liska

We study the effect of periodic, spatially uniform temperature variation on mechanical properties and structural relaxation of amorphous alloys using molecular dynamics simulations. The disordered material is modeled via a non-additive…

Soft Condensed Matter · Physics 2019-02-04 Qing-Long Liu , Nikolai V. Priezjev

Recent publications have described a method for stand-off optical detection of explosives using resonant infra-red photothermal imaging. This technique uses tuned lasers to selectively heat small particles of explosive lying on a substrate…

Materials Science · Physics 2011-02-18 Philip Cassady

In this paper we analyze how radiation effects influence the correlation functions, the excess energy, and in turn the electron correlation energy of the quantized electron gas at temperature $T=0$. To that aim we resort to a statistical…

Statistical Mechanics · Physics 2020-08-26 Johan S. Høye , Enrique Lomba

We show by explicit calculations that non-classical states of the radiation field can be produced by allowing short term interaction between a coherent state of the radiation field with plasma. Whereas, long term interaction, which…

Quantum Physics · Physics 2011-06-16 Aabhaas Vineet Mallik , Pratyay Ghosh , Ananda Dasgupta

Femtosecond X-ray irradiation of solids excites energetic photoelectrons that thermalize on a timescale of a few hundred femtoseconds. The thermalized electrons exchange energy with the lattice and heat it up. Experiments with X-ray…

Materials Science · Physics 2017-07-07 Beata Ziaja , Nikita Medvedev , Victor Tkachenko , Theophilos Maltezopoulos , Wilfried Wurth

We present a numerical method which evolves a two-temperature, magnetized, radiative, accretion flow around a black hole, within the framework of general relativistic radiation magnetohydrodynamics. As implemented in the code KORAL, the gas…

High Energy Astrophysical Phenomena · Physics 2017-01-18 A. Sadowski , M. Wielgus , R. Narayan , D. Abarca , J. C. McKinney , A. Chael

We develop a quantum-optical framework demonstrating that thermal radiation can confine a significant portion of its energy in dark collective modes -- highly entangled photon states that, despite their photonic nature, remain decoupled…

Quantum Physics · Physics 2025-05-23 Celso Jorge Villas-Boas , Ciro Micheletti Diniz

Thermodynamic parameters of thermal inactivation of excitonically induced defect formation in rare-gas solids have been obtained from the fitting of the temperature dependences of defect formation rates, which were measured under selective…

Materials Science · Physics 2007-11-09 A. N. Ogurtsov , N. Yu. Masalitina , O. N. Bliznjuk

We perform 2D and 3D kinetic simulations of reconnection-mediated turbulent flares in a magnetized electron-positron plasma, with weak and strong radiative cooling. Such flares can be generated around neutron stars and accreting black…

High Energy Astrophysical Phenomena · Physics 2021-11-17 J. Nättilä , A. M. Beloborodov

The effect of thermal shape fluctuations on the recurrent fluorescence of boron cluster cations, B$_N^+$ ($N=9-14$), has been investigated numerically, with a special emphasis on B$_{13}^+$. For this cluster, the electronic structures of…

Atomic and Molecular Clusters · Physics 2023-01-11 T. Höltzl , P. Ferrari , E. Janssens , K. Hansen

By calculating the correlation between the total photoionization cross-section of the ground state of the Kr atom and photon energy, three particular photon energies close to the near inner orbital energy of 1.75 keV, 1.90 keV, and 14.30…

Atomic Physics · Physics 2022-05-12 Jiaxin Ye , Yixuan Yang , Chen Yang , Gang Jiang

The high densities, long lifetimes, and narrow emission measure distributions observed in coronal loops with apex temperatures near 1 MK are difficult to reconcile with physical models of the solar atmosphere. It has been proposed that the…

Solar and Stellar Astrophysics · Physics 2010-04-08 Harry P. Warren , David M. Kim , Amanda M. DeGiorgi , Ignacio Ugarte-Urra

Atoms excited into high-lying Rydberg states and under strong dipole-dipole interactions exhibit phenomena associated with highly correlated and complex systems. We perform first principles numerical simulations on the dynamics of such…

The electron residual energy originated from the stochastic heating in under-dense field-ionized plasma is here investigated. The optical response of plasma is initially modeled by using the concept of two counter-propagating…

Plasma Physics · Physics 2018-04-26 Elnaz Khalilzadeh , Jam Yazdanpanah , Jafar Jahanpanah , Amir Chakhmachi , Elnaz Yazdani

In thin-layer electrodeposition the dissipated electrical energy leads to a substantial heating of the ion solution. We measured the resulting temperature field by means of an infrared camera. The properties of the temperature field…

Pattern Formation and Solitons · Physics 2009-11-07 Matthias Schröter , Klaus Kassner , Ingo Rehberg , Josep Claret , Francesc Sagués