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6 papers · 1 filter
Quantum capacitance and compressibility of graphene: The role of Coulomb interactions
Yu. E. Lozovik, A. A. Sokolik, A. D. Zabolotskiy
Many-body effects on quantum capacitance, compressibility, renormalized Fermi velocity, kinetic and interaction energies of massless Dirac electrons in graphene, induced by the Cou…
Two-dimensional Bose gas of tilted dipoles: roton instability and condensate depletion
A. K. Fedorov, I. L. Kurbakov, Y. E. Shchadilova +1
We predict the effect of the roton instability for a two-dimensional weakly interacting gas of tilted dipoles in a single homogeneous quantum layer. Being typical for strongly corr…
Generalized solutions of nonlocal elliptic problems
Pavel Gurevich
An elliptic equation of order with general nonlocal boundary-value conditions, in a plane bounded domain with piecewise smooth boundary, is considered. Generalized solutio…
Roton-maxon spectrum and instability for weakly interacting dipolar excitons in a semiconductor layer
A. K. Fedorov, I. L. Kurbakov, Yu. E. Lozovik
The formation of the roton-maxon excitation spectrum and the roton instability effect for a weakly correlated Bose gas of dipolar excitons in a semiconductor layer are predicted. T…
Central elements in the universal enveloping algebra and function of matrix elements
D. V. Artamonov, V. A. Golubeva
In the paper a construction of central elements in and based on invariant theory is given. New function of matrix elements that appear in de…
Holographic estimation of multiplicity and membranes collision in modified spaces
I. Ya. Aref'eva, E. O. Pozdeeva, T. O. Pozdeeva
The quark-gluon plasma formed as a result of heavy-ion collisions is currently investigated actively both theoretically and experimentally. According to the holographic approach, f…