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Nonmonotonic entropy evolution of carriers in graphene generated by strong laser field
Author(s): Konstantin Y. Kravtsov; Vadim V. Dmitriev; Anatoly D. Panferov; Stanislav A. Smolyansky; David B. Blaschke; N. T. Gevorgyan
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Paper Abstract

Based on the non-perturbative kinetic theory of the electron-hole pair excitation (EHE) in graphene under influence of a variable electromagnetic field, we investigate some features of the nonmonotonic evolution of entropy in the framework of the low-energy approach for different configurations of the linear and circular polarization laser fields. Such a character of the entropy change in graphene is stipulated by the action of the external field and the difference in the in− and out− states of the system, which is characteristic for field-induced phase transitions. A similar effect is known in the theory of the vacuum creation of an electron-positron plasma (EPP) under the action of a strong electromagnetic field, but has its own features.

Paper Details

Date Published: 3 June 2019
PDF: 8 pages
Proc. SPIE 11066, Saratov Fall Meeting 2018: Laser Physics, Photonic Technologies, and Molecular Modeling, 110661J (3 June 2019); doi: 10.1117/12.2521602
Show Author Affiliations
Konstantin Y. Kravtsov, Saratov State Univ. (Russian Federation)
Vadim V. Dmitriev, Saratov State Univ. (Russian Federation)
Anatoly D. Panferov, Saratov State Univ. (Russian Federation)
Stanislav A. Smolyansky, Saratov State Univ. (Russian Federation)
David B. Blaschke, Univ. of Wroclaw (Poland)
N. T. Gevorgyan, Russian-Armenian (Slavonic) Univ. (Armenia)


Published in SPIE Proceedings Vol. 11066:
Saratov Fall Meeting 2018: Laser Physics, Photonic Technologies, and Molecular Modeling
Vladimir L. Derbov, Editor(s)

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