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7 papers · 1 filter
Investigation of Radiation Emitted by Sub GeV Electrons in Oriented Scintillator Crystals
L. Bandiera, R. Camattari, N. Canale +12
The research investigates coherent interactions between sub-GeV electrons and oriented scintillator crystals, leading to enhanced electromagnetic (EM) radiation. Experiments at Mai…
Robust structural superlubricity of twisted graphene bilayer and domain walls between commensurate moiré pattern domains from first-principles calculations
Irina V. Lebedeva, Andrey M. Popov, Yulia G. Polynskaya +3
Twisted graphene layers exhibit extremely low friction for relative sliding. Nevertheless, previous studies suggest that the area contribution to friction for commensurate moiré sy…
A first encounter with exceptional points in a quantum model
C. A. Downing, V. A. Saroka
An exceptional point is a special point in parameter space at which two (or more) eigenvalues and eigenvectors coincide. The discovery of exceptional points within mechanical and o…
Gauge gravitation theory in Riemann-Cartan space-time and gravitational interaction
A. V. Minkevich
The place and physical significance of gauge gravitation theory in the Riemann-Cartan space-time (GTRC) in the framework of gauge approach to gravitation is discussed. Isotropic co…
High-Precision Alignment Techniques for Realizing an Ultracompact Electromagnetic Calorimeters Using Oriented high-Z Scintillator Crystals
Lorenzo Malagutti, Alessia Selmi, Laura Bandiera +29
Electromagnetic calorimeters used in high-energy physics and astrophysics rely heavily on high-Z inorganic scintillators, such as lead tungstate (PbWO4 or PWO). The crystalline str…
Restriction of macroscopic structural superlubricity due to structure relaxation by the example of twisted graphene bilayer
Alexander S. Minkin, Irina V. Lebedeva, Andrey M. Popov +3
The effect of structure relaxation on the potential energy surface (PES) of interlayer interaction of twisted graphene bilayer is studied for a set of commensurate moiré systems us…