Hole on a stripe in a spinless fermion model

Details Hole on a stripe in a spinless fermion model Hole on a stripe in a spinless fermion model

2003-05-12

arxiv.org/abs/cond-mat/0305236v2

Europhys. Lett., 65 (2), pp. 228-234 (2004)

Physics

Condensed Matter

Strongly Correlated Electrons

7 Pages, 6 figures; Revised version accepted for publication in Europhysics Letters

Scientific paper

10.1209/epl/i2003-10066-6

In the spinless fermion model on a square lattice with infinite nearest-neighbor repulsion, holes doped into the half-filled ordered state form stripes which, at low doping, are stable against phase separation into an ordered state and a hole-rich metal. Here we consider transport of additional holes along these stripes. The motion of a single hole on a stripe is mapped to a one-dimensional problem, a variational wavefunction is constructed and the energy spectrum is calculated and compared to energies obtained by exact diagonalization.

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