Pairing and Excitation Spectrum in doped t-J Ladders

Abstract

Exact diagonalization studies for a doped t-J ladder (or double chain) show hole pairing in the ground state. The excitation spectrum separates into a limited number of quasiparticles which carry charge $+|e|$ and spin $\frac{1}{2}$ and a triplet mode. At half-filling the former vanish but the latter evolves continuously into the triplet band of the spin liquid. At low doping the quasiparticles form a dilute Fermi gas with a strong attraction but simultaneously the Fermi wavevector, as would be measured in photoemission, is large.

10 pages and 4 PostScript figures, RevTeX 3.0, ETH-TH/94-01

References in corpus (4)

• Spin-ladders with spin gaps: A description of a class of cuprates
• Toward a Unified Magnetic Phase Diagram of the Cuprate Superconductors
• Superconductivity in a Quasi One Dimensional Spin Liquid
• Universal Magnetic Properties of $L{a}_{2-\delta }S{r}_{\delta }Cu{O}_4$ at Intermediate Temperatures

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