Electron and spin transport in the presence of a complex absorbing potential
Abstract
We examine the impact of a complex absorbing potential on electron transport both in the continuum and on a lattice. This requires the use of non-Hermitian Hamiltonians; the required formalism is briefly outlined. The lattice formulation allows us to study the interesting problem of an electron interacting with a stationary spin and the subsequent time evolution of the electron and spin properties as the electron is absorbed after the initial interaction. Remarkably, the properties of the localized spin are affected “at a distance” by the interaction of the (now entangled) electron with a complex potential.
- Publication:
-
Physical Review B
- Pub Date:
- May 2008
- DOI:
- 10.1103/PhysRevB.77.195107
- arXiv:
- arXiv:0804.3083
- Bibcode:
- 2008PhRvB..77s5107D
- Keywords:
-
- 03.65.Ud;
- 72.25.Rb;
- 03.67.Mn;
- Entanglement and quantum nonlocality;
- Spin relaxation and scattering;
- Entanglement production characterization and manipulation;
- Condensed Matter - Mesoscale and Nanoscale Physics
- E-Print:
- to be published in Phys. Rev. B