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Quantum diffusion in two-dimensional random systems with particle-hole symmetry
- Source :
- J. Phys. A: Math. Theor. 45 (2012) 335001
- Publication Year :
- 2011
-
Abstract
- We study the scattering dynamics of an $n$-component spinor wavefunction in a random environment on a two-dimensional lattice. In the presence of particle-hole symmetry we find diffusion on large scales. The latter is described by a non-interacting Grassmann field, indicating a special kind of asymptotic freedom in $d=2$.<br />Comment: 9 pages, no figures, extended version
- Subjects :
- Condensed Matter - Disordered Systems and Neural Networks
Quantum Physics
Subjects
Details
- Database :
- arXiv
- Journal :
- J. Phys. A: Math. Theor. 45 (2012) 335001
- Publication Type :
- Report
- Accession number :
- edsarx.1112.1992
- Document Type :
- Working Paper
- Full Text :
- https://doi.org/10.1088/1751-8113/45/33/335001