The Gap Function for a 2-leg t-J Ladder

ORAL

Abstract

The wave vector and frequency dependence of the gap function $\phi(k,\omega)$ for a doped 2-leg t-J ladder is obtained from a Lanczos calculation. Based upon this information, we argue that the pairing interaction is (1) short range in space, (2) retarded, and (3) dominated by the S=1 channel near its onset.

*DJS acknowledges support under NSF grant \#DMR02-11166, and we thank IDRIS (Orsay, France) for their supercomputer support.

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Authors

  • Douglas Scalapino

    • University of California, Santa Barbara

  • Didier Poilblanc

    • Laboratoire de Physique Th\'eorique - Universit\'e Paul Sabatier, Toulouse, France