Time operators for quantum walks
Sign Up to like & getrecommendations! Published in 2020 at "Letters in Mathematical Physics"
DOI: 10.1007/s11005-020-01299-5
Abstract: We study time operators for discrete-time quantum systems. Quantum walks are typical examples. We construct time operators for one-dimensional homogeneous quantum walks and determine their deficiency indices and spectra. Our time operators always have self-adjoint… read more here.
Keywords: quantum walks; time operators; time; operators quantum ... See more keywords
Higher order derivative operators as quantum corrections
Sign Up to like & getrecommendations! Published in 2019 at "Nuclear Physics B"
DOI: 10.1016/j.nuclphysb.2019.114634
Abstract: Abstract In this paper we propose a non-minimal, and ghost free, coupling between the gauge field and the fermionic one from which we obtain, perturbatively, terms with higher order derivatives as quantum corrections to the… read more here.
Keywords: order; higher order; operators quantum; order derivative ... See more keywords