TY - JOUR
T1 - Absence of asymptotic freedom in doped mott insulators
T2 - Breakdown of strong coupling expansions
AU - Phillips, Philip
AU - Galanakis, Dimitrios
AU - Stanescu, Tudor D.
N1 - Funding Information:
This work was supported by the NSF, Grant No. DMR-0305864 and the ACS Petroleum Research Fund. We also thank A. Chernyshev, E. Fradkin, S. Girvin, G. Murthy, A. Rozhkov, R. Shankar, Q. Si, A.-M. Tremblay, and P. Wolynes for insightful comments.
PY - 2004/12/31
Y1 - 2004/12/31
N2 - The absence of asymptotic freedom in high temperature Mott insulators was discussed. It was found that the breakdown of strong coupling expansions failed for the high temperature superconductors because the value of the quasiparticle weight in the vicinity of half filling depended crucially on the presence of the upper Hubbard band. The absence of freedom of the doped Mott Insulators arose from quantum interference between electronic excitations across the Mott gap. The results show that the Pauli principle appeared as a sum rule over high and low energies in doped Mott systems.
AB - The absence of asymptotic freedom in high temperature Mott insulators was discussed. It was found that the breakdown of strong coupling expansions failed for the high temperature superconductors because the value of the quasiparticle weight in the vicinity of half filling depended crucially on the presence of the upper Hubbard band. The absence of freedom of the doped Mott Insulators arose from quantum interference between electronic excitations across the Mott gap. The results show that the Pauli principle appeared as a sum rule over high and low energies in doped Mott systems.
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U2 - 10.1103/PhysRevLett.93.267004
DO - 10.1103/PhysRevLett.93.267004
M3 - Article
AN - SCOPUS:42749106857
SN - 0031-9007
VL - 93
JO - Physical review letters
JF - Physical review letters
IS - 26 I
M1 - 267004
ER -