Zobrazeno 1 - 10
of 866
pro vyhledávání: '"A. Silenko"'
Autor:
Silenko, Alexander J.
For Dirac particles interacting with external fields, we use the exact operator of the Foldy-Wouthuysen transformation obtained by Eriksen and rigorously derive a leading correction in the weak-field approximation to the known relativistic Foldy-Wout
Externí odkaz:
http://arxiv.org/abs/2408.01770
Autor:
Meng, Qi, Liu, Xuan, Ma, Wei, Yang, Zhen, Lu, Liang, Silenko, Alexander J., Zhang, Pengming, Zou, Liping
The rotation of electron vortex beams (EVBs) presents a complex interplay of the Gouy phase characterizing free-space behavior and Landau states or Larmor rotation observed in magnetic fields. Despite being studied separately, these phenomena manifes
Externí odkaz:
http://arxiv.org/abs/2407.02788
Spin decoherence and off-resonance behavior of radiofrequency-driven spin rotations in storage rings
Autor:
Nikolaev, N. N., Rathmann, F., Slim, J., Andres, A., Hejny, V., Nass, A., Kacharava, A., Lenisa, P., Pretz, J., Saleev, A., Shmakova, V., Soltner, H., Abusaif, F., Aggarwal, A., Aksentev, A., Alberdi, B., Barion, L., Bekman, I., Beyß, M., Böhme, C., Breitkreutz, B., Canale, N., Ciullo, G., Dymov, S., Fröhlich, N. -O., Gebel, R., Gaisser, M., Grigoryev, K., Grzonka, D., Hetzel, J., Javakhishvili, O., Kamerdzhiev, V., Karanth, S., Keshelashvili, I., Kononov, A., Laihem, K., Lehrach, A., Lomidze, N., Lorentz, B., Macharashvili, G., Magiera, A., Mchedlishvili, D., Melnikov, A., Müller, F., Pesce, A., Poncza, V., Prasuhn, D., Shergelashvili, D., Shurkhno, N., Siddique, S., Silenko, A., Stassen, S., Stephenson, E. J., Ströher, H., Tabidze, M., Tagliente, G., Valdau, Y., Vitz, M., Wagner, T., Wirzba, A., Wrońska, A., Wüstner, P., Żurek, M.
Radiofrequency-driven resonant spin rotators are routinely used as standard instruments in polarization experiments in particle and nuclear physics. Maintaining the continuous exact parametric spin-resonance condition of the equality of the spin rota
Externí odkaz:
http://arxiv.org/abs/2309.05080
Autor:
Silenko, Alexander J.
The general classical equation of spin motion is rigorously derived for a particle with electric and magnetic charges and dipole moments in electromagnetic fields. The equation describing the spin motion relative to the momentum direction in storage
Externí odkaz:
http://arxiv.org/abs/2309.04985
Autor:
Slim, J., Rathmann, F., Andres, A., Hejny, V., Nass, A., Kacharava, A., Lenisa, P., Nikolaev, N. N., Pretz, J., Saleev, A., Shmakova, V., Soltner, H., Abusaif, F., Aggarwal, A., Aksentev, A., Alberdi, B., Barion, L., Bekman, I., Beyß, M., Böhme, C., Breitkreutz, B., Canale, N., Ciullo, G., Dymov, S., Fröhlich, N. -O., Gebel, R., Gaisser, M., Grigoryev, K., Grzonka, D., Hetzel, J., Javakhishvili, O., Kamerdzhiev, V., Karanth, S., Keshelashvili, I., Kononov, A., Laihem, K., Lehrach, A., Lomidze, N., Lorentz, B., Macharashvili, G., Magiera, A., Mchedlishvili, D., Melnikov, A., Müller, F., Pesce, A., Poncza, V., Prasuhn, D., Shergelashvili, D., Shurkhno, N., Siddique, S., Silenko, A., Stassen, S., Stephenson, E. J., Ströher, H., Tabidze, M., Tagliente, G., Valdau, Y., Vitz, M., Wagner, T., Wirzba, A., Wrońska, A., Wüstner, P., Żurek, M.
In polarization experiments at storage rings, one of the challenges is to maintain the spin-resonance condition of a radio-frequency spin rotator with the spin-precessions of the orbiting particles. Time-dependent variations of the magnetic fields of
Externí odkaz:
http://arxiv.org/abs/2309.06561
Autor:
Evgeny Yu. Kotov, Arkady N. Silenko
Publikováno v:
Вестник Кемеровского государственного университета. Серия: политические, социологические и экономические науки, Vol 9, Iss 2, Pp 253-262 (2024)
Human capital depends on many variables, e.g., financial crises, state economy, education, geopolitical conflicts, competition, etc. The article introduces various tools that could increase the efficiency of human capital in industrial enterprises, a
Externí odkaz:
https://doaj.org/article/df542ee6f1b94728b44fd6112df69107
Autor:
Silenko, Alexander J.
It is shown that the covariance of Lagrangians always taking place results in a distortion of any electric and magnetic fields by a pseudoscalar field of axions and axion-like particles. As a result, electric and magnetic fields acquire oscillating m
Externí odkaz:
http://arxiv.org/abs/2305.19703
Autor:
Silenko, Alexander J.
The relativistic Foldy-Wouthuysen transformation is used for an advanced description of planar graphene electrons in external fields and free (2+1)-space. It is shown that the initial Dirac equation should by based on the usual $(4\times4)$ Dirac mat
Externí odkaz:
http://arxiv.org/abs/2305.11879
Autor:
N. Hempelmann, V. Hejny, J. Pretz, H. Soltner, W. Augustyniak, Z. Bagdasarian, M. Bai, L. Barion, M. Berz, S. Chekmenev, G. Ciullo, S. Dymov, D. Eversmann, M. Gaisser, R. Gebel, K. Grigoryev, D. Grzonka, G. Guidoboni, D. Heberling, J. Hetzel, F. Hinder, A. Kacharava, V. Kamerdzhiev, I. Keshelashvili, I. Koop, A. Kulikov, A. Lehrach, P. Lenisa, N. Lomidze, B. Lorentz, P. Maanen, G. Macharashvili, A. Magiera, D. Mchedlishvili, S. Mey, F. Müller, A. Nass, N. N. Nikolaev, M. Nioradze, A. Pesce, D. Prasuhn, F. Rathmann, M. Rosenthal, A. Saleev, V. Schmidt, Y. Semertzidis, Y. Senichev, V. Shmakova, A. Silenko, J. Slim, A. Stahl, R. Stassen, E. Stephenson, H. Stockhorst, H. Ströher, M. Tabidze, G. Tagliente, R. Talman, P. Thörngren Engblom, F. Trinkel, Yu. Uzikov, Yu. Valdau, E. Valetov, A. Vassiliev, C. Weidemann, A. Wrońska, P. Wüstner, P. Zuprański, M. Żurek
Publikováno v:
Physical Review Accelerators and Beams, Vol 21, Iss 4, p 042002 (2018)
This paper reports the first simultaneous measurement of the horizontal and vertical components of the polarization vector in a storage ring under the influence of a radio frequency (rf) solenoid. The experiments were performed at the Cooler Synchrot
Externí odkaz:
https://doaj.org/article/7005dcf99121433ea299089df3b2fb10
The use of a (quasi)uniform magnetic field opens new possibilities for a production of twisted particles having orbital angular momenta. Quantum states suitable for a production of charged particles in a uniform magnetic field are determined. The par
Externí odkaz:
http://arxiv.org/abs/2207.14105