Zobrazeno 1 - 10
of 545
pro vyhledávání: '"Popovici C"'
Publikováno v:
Phys. Rev. B 88, 205429 (2013)
We study the renormalization of the Fermi velocity by the long-range Coulomb interactions between the charge carriers in the Dirac-cone approximation for the effective low-energy description of the electronic excitations in graphene at half filling.
Externí odkaz:
http://arxiv.org/abs/1308.6199
We investigate the problem of dynamical gap generation in suspended graphene by long-range Coulomb interactions at strong coupling with Dyson-Schwinger equations. Including renormalization effects on the Fermi velocity we obtain a critical coupling c
Externí odkaz:
http://arxiv.org/abs/1302.2365
In the present work, we investigate how structural defects in graphene can change its transport properties. In particular, we show that breaking of the sublattice symmetry in a graphene monolayer overcomes the Klein effect, leading to confined states
Externí odkaz:
http://arxiv.org/abs/1202.3115
Publikováno v:
Phys.Rev.D83:125018,2011
The Dyson-Schwinger equation for the 4-point quark Green's functions is studied. In the limit of the heavy quark mass and with the truncation to include only the dressed two point functions for the Yang-Mills sector, we provide an exact solution for
Externí odkaz:
http://arxiv.org/abs/1103.4786
Publikováno v:
Phys.Rev.D83:025013,2011
In the heavy quark limit of Coulomb gauge QCD and by truncating the Yang-Mills sector to include only dressed two-point functions, an analytic nonperturbative solution to the Faddeev equation for three-quark bound states in the case of equal quark se
Externí odkaz:
http://arxiv.org/abs/1010.4254
Publikováno v:
Phys.Rev.D81:105011,2010
The relationship between the nonperturbative Green's functions of Yang-Mills theory and the confinement potential is investigated. By rewriting the generating functional of quantum chromodynamics in terms of a heavy quark mass expansion in Coulomb ga
Externí odkaz:
http://arxiv.org/abs/1003.3863
Autor:
Popovici, C.-G., Filipescu, G., Cherecheș, N.-C., Hudișteanu, S.-V., Țurcanu, E.-F., Ancas, Ana Diana, Verdeș, Marina, Roșu, P. V.
Publikováno v:
Journal of Applied Engineering Sciences; May2024, Vol. 14 Issue 1, p81-88, 8p
Autor:
Popovici, C.-G., Enaru, I., Aioanei, C.-C., Ţurcanu, F.-E., Hudişteanu, S.-V., Cherecheş, N.-C., Verdeș, Marina, Ancaș, Diana-Ana, Ciocan, V.
Publikováno v:
Journal of Applied Engineering Sciences; May2024, Vol. 14 Issue 1, p71-80, 10p
Publikováno v:
Phys.Rev.D79:045006,2009
Coulomb gauge quantum chromodynamics within the first order functional formalism is considered. The quark contributions to the Dyson-Schwinger equations are derived and one-loop perturbative results for the two-point functions are presented.
Com
Com
Externí odkaz:
http://arxiv.org/abs/0810.4887
Akademický článek
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