Bibliographic Details
| Title: |
Charge degrees in the quarter-filled checkerboard lattice |
| Authors: |
Pollmann, F.1 frankp@pks.mpg.de, Betouras, J.J.2, Runge, E.3, Fulde, P.1 |
| Source: |
Journal of Magnetism & Magnetic Materials. Mar2007 Part 2, Vol. 310 Issue 2p2, p966-968. 3p. |
| Subjects: |
Particles (Nuclear physics), Fermions, Lattice dynamics, Lattice gauge theories |
| Abstract: |
Abstract: For a systematic study of charge degrees of freedom in lattices with geometric frustration, we consider spinless fermions on the checkerboard lattice with nearest-neighbor hopping and nearest-neighbor repulsion at quarter-filling. An effective Hamiltonian in the limit is given to lowest non-vanishing order by the ring exchange (). We show that the system can equivalently be described by hard-core bosons and map the model to a confining lattice gauge theory. [Copyright &y& Elsevier] |
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| Database: |
Engineering Source |
