Fermion confinement via Quantum Walks in 2D+1 and 3D+1 spacetime
arXiv:1612.08027 · doi:10.1103/PhysRevA.95.042112
Abstract
We analyze the properties of a two and three dimensional quantum walk that are inspired by the idea of a brane-world model put forward by Rubakov and Shaposhnikov [1]. In that model, particles are dynamically confined on the brane due to the interaction with a scalar field. We translated this model into an alternate quantum walk with a coin that depends on the external field, with a dependence which mimics a domain wall solution. As in the original model, fermions (in our case, the walker), become localized in one of the dimensions, not from the action of a random noise on the lattice (as in the case of Anderson localization), but from a regular dependence in space. On the other hand, the resulting quantum walk can move freely along the "ordinary" dimension.
5 pages, 6 figures
References in corpus (4)
Cited by in corpus (12)
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