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Pis'ma v Zhurnal Èksperimental'noi i Teoreticheskoi Fiziki, 2011, Volume 93, Issue 9, Pages 575–578
(Mi jetpl1893)
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This article is cited in 7 scientific papers (total in 7 papers)
CONDENSED MATTER
The calculation of the Fermi surface with complex topology from norm-conserving cluster perturbation theory
for doping dependent electronic structure of the Hubbard model
S. G. Ovchinnikovab, S. V. Nikolaevc a L. V. Kirensky Institute of Physics, Siberian Branch of the Russian Academy of Sciences
b Siberian Federal University, Krasnoyarsk
c Omsk State University
Abstract:
In present paper the results of recently developed norm-conserving cluster perturbation theory (NC–CPT) for doping dependent electronic structure of the Hubbard model are reported. We have found that the momentum distribution of the spectral weight strongly depends on the broadening value $\delta$. At the $\delta = 0.1t$ we reproduce the angleṛesolved photoemission spectroscopy (ARPES) data, while at $\delta = 0.01t$ we obtain two quantum phase transitions (QPT).
Received: 24.02.2011 Revised: 18.03.2011
Citation:
S. G. Ovchinnikov, S. V. Nikolaev, “The calculation of the Fermi surface with complex topology from norm-conserving cluster perturbation theory
for doping dependent electronic structure of the Hubbard model”, Pis'ma v Zh. Èksper. Teoret. Fiz., 93:9 (2011), 575–578; JETP Letters, 93:9 (2011), 517–520
Linking options:
https://www.mathnet.ru/eng/jetpl1893 https://www.mathnet.ru/eng/jetpl/v93/i9/p575
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