Discrete Abelian gauge theories for quantum simulations of QED

作者:Notarnicola Simone*; Ercolessi Elisa; Facchi Paolo; Marmo Giuseppe; Pascazio Saverio; Pepe Francesco V
来源:Journal of Physics A-Mathematical and Theoretical, 2015, 48(30): 30FT01.
DOI:10.1088/1751-8113/48/30/30FT01

摘要

We study a lattice gauge theory in Wilson's Hamiltonian formalism. In view of the realization of a quantum simulator for QED in one dimension, we introduce an Abelian model with a discrete gauge symmetry Z(n), approximating the U(1) theory for large n. We analyze the role of the finiteness of the gauge fields and the properties of physical states, that satisfy a generalized Gauss's law. We finally discuss a possible implementation strategy, that involves an effective dynamics in physical space.

  • 出版日期2015-7-31