Phys. Rev. B 66, 054427 (2002) [4 pages]Holon pairing instability based on the Bethe-Salpeter equation obtained from the t-J Hamiltonians of both U(1) and SU(2) slave-boson symmetriesReceived 29 May 2002; published 20 August 2002 A Bethe-Salpeter equation is obtained by using of the t-J Hamiltonians that satisfy the U(1) and the SU(2) slave-boson symmetries, respectively. Holon-holon scattering channels in the Bethe-Salpeter equation are judiciously examined at a critical temperature to study the instability of the normal state against holon pairing. From the present study of the holon pairing instability, an arch-shaped bose condensation line is revealed in agreement with the observation for high-Tc cuprates over a range of hole doping concentration. © 2002 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevB.66.054427
DOI:
10.1103/PhysRevB.66.054427
PACS:
74.20.-z, 74.25.-q, 74.62.-c
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