Zobrazeno 1 - 10
of 25 788
pro vyhledávání: '"Vasiliev, A A"'
Autor:
Semakin, A., Ahokas, J., Hanski, O., Dvornichenko, V., Kiilerich, T., Nez, F., Yzombard, P., Nesvizhevsky, V., Widmann, E., Crivelli, P., Vasiliev, S.
We present a design and performance tests of an intense source of cold hydrogen atoms for loading large magnetic traps. Our source is based on a cryogenic dissociator of molecular hydrogen at 0.6 K followed by a series of thermal accommodators at 0.5
Externí odkaz:
http://arxiv.org/abs/2412.13981
Autor:
Gokhfeld, D. M., Petrov, M. I., Semenov, S. V., Balaev, A. D., Nemtsev, I. V., Vasiliev, A. D., Molokeev, M. S.
Publikováno v:
Ceram. Int. 50 (2024) 52213
Solid-state synthesis is widely used in exploratory research to study various structural modifications that affect the properties (critical temperature, critical current density, irreversibility field, etc.) of superconductors. The popularity of this
Externí odkaz:
http://arxiv.org/abs/2412.08113
Autor:
Artemyev, A. V., Mourenas, D., Zhang, X. -J., Agapitov, O., Neishtadt, A. I., Vainchtein, D. L., Vasiliev, A. A., Zhang, X., Ma, Q., Bortnik, J., Krasnoselskikh, V. V.
The dynamics of the Earth's outer radiation belt, filled by energetic electron fluxes, is largely controlled by electron resonant interactions with electromagnetic whistler-mode waves. The most coherent and intense waves resonantly interact with elec
Externí odkaz:
http://arxiv.org/abs/2410.07386
Autor:
Sotnikov, G. V., Vasiliev, A. V., Beznosenko, I. V., Kovalov, S. M., Povrozin, A. I., Svystunov, O. O.
A comparative analysis of two types of dielectric laser accelerators (DLA) based on periodic (grating) and flat dielectric structures to accelerate electrons in the energy range from 300 keV to 3 GeV is presented. The main attention is paid to the co
Externí odkaz:
http://arxiv.org/abs/2409.19313
To search for a conceptual picture describing the magnetization plateau phenomenon, we surveyed the crystal structures and the spin lattices of those magnets exhibiting plateaus in their magnetization vs. magnetic field curves by probing the three qu
Externí odkaz:
http://arxiv.org/abs/2409.19529
Autor:
Bikmukhametov, Farid, Glazko, Lana, Muravev, Yaroslav, Pozdeev, Dmitrii, Vasiliev, Evgeni, Krasikov, Sergey, Krasikova, Mariia
Acoustic black holes represent a special class of metastructures allowing efficient absorption based on the slow sound principle. The decrease of the wave speed is associated with the spatial variation of acoustic impedance, while the absorption prop
Externí odkaz:
http://arxiv.org/abs/2409.02731
Deep neural network models have a complex architecture and are overparameterized. The number of parameters is more than the whole dataset, which is highly resource-consuming. This complicates their application and limits its usage on different device
Externí odkaz:
http://arxiv.org/abs/2408.06024
Autor:
Tahmasebzadeh, Behzad, Lapeer, Andrew, Vasiliev, Eugene, Valluri, Monica, Taylor, Matthew A., Thompson, Solveig
Due to observational challenges, the mass function of black holes (BH) at lower masses is poorly constrained in the local universe. Understanding the occupation fraction of BHs in low-mass galaxies is crucial for constraining the origins of supermass
Externí odkaz:
http://arxiv.org/abs/2408.02142
Autor:
Babichev, Andrey, Makhov, Ivan, Kryzhanovskaya, Natalia, Blokhin, Alexey, Zadiranov, Yuriy, Salii, Yulia, Kulagina, Marina, Bobrov, Mikhail, Vasiliev, Alexey, Blokhin, Sergey, Maleev, Nikolay, Tchernycheva, Maria, Karachinsky, Leonid, Novikov, Innokenty, Egorov, Anton
A comprehensive numerical modelling of microcavity parameters for micropillar lasers with optical pumping was presented. The structure with a hybrid dielectric-semiconductor top mirror has a significantly higher calculated quality-factor (~65000 for
Externí odkaz:
http://arxiv.org/abs/2407.16271
Autor:
Killian, Carina, Blumer, Philipp, Crivelli, Paolo, Kloppenburg, Daniel, Nez, Francois, Nesvizhevsky, Valery, Reynaud, Serge, Schreiner, Katharina, Simon, Martin, Vasiliev, Sergey, Widmann, Eberhard, Yzombard, Pauline
A low energy particle confined by a horizontal reflective surface and gravity settles in gravitationally bound quantum states. These gravitational quantum states (GQS) were so far only observed with neutrons. However, the existence of GQS is predicte
Externí odkaz:
http://arxiv.org/abs/2407.15443