| Issue |
Europhys. Lett.
Volume 65, Number 2, January 2004
|
|
|---|---|---|
| Page(s) | 228 - 234 | |
| Section | Condensed matter: electronic structure, electrical, magnetic, and optical properties | |
| DOI | https://doi.org/10.1209/epl/i2003-10066-6 | |
| Published online | 01 January 2004 | |
Hole on a stripe in a spinless fermion model
Laboratory of Atomic and Solid State Physics, Cornell University Ithaca, NY, 14853-2501 USA
Corresponding author: uh22@cornell.edu
Received:
13
May
2003
Accepted:
4
November
2003
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 wave function is constructed and the energy spectrum is calculated and compared to energies obtained by exact diagonalization.
PACS: 71.10.Fd – Lattice fermion models (Hubbard model, etc.) / 71.10.Pm – Fermions in reduced dimensions (anyons, composite fermions, Luttinger liquid, etc.)
© EDP Sciences, 2004
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