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Theoretical Study of Hole-Pair System in a Periodical Lattice

✍ Scribed by O. Navarro; I.G. Kaplan

Publisher
John Wiley and Sons
Year
2000
Tongue
English
Weight
79 KB
Volume
220
Category
Article
ISSN
0370-1972

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✦ Synopsis

We investigate the statistics of the coupled hole pairs in a crystal lattice in high T c superconductors, following the previously developed approach for the collective charge state (holon). The exact commutation relations for the hole pair operators correspond to a modified parafermi statistics of rank M H (M H is the number of sites in a ``superlatticeº formed by centers of mass for each hole pair), i.e. one state can be occupied by up to M H pairs. Even in the absence of dynamic interaction, the system of hole pairs is characterized by some immanent interaction (kinematic interaction), which depends on the hole-pairs concentration. In spite of the kinematic interaction, there is no statistical prohibition on the Bose-Einstein condensation of coupled hole pairs.

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