English

On the K-theoretic classification of dynamically stable systems

Mathematical Physics 2018-10-10 v2 math.MP

Abstract

This paper deals with the construction of a suitable topological KK-theory capable of classifying topological phases of dynamically stable systems described by gapped η\eta-self-adjoint operators on a Krein space with indefinite metric η\eta.

Keywords

Cite

@article{arxiv.1804.10111,
  title  = {On the K-theoretic classification of dynamically stable systems},
  author = {Giuseppe De Nittis and Kiyonori Gomi},
  journal= {arXiv preprint arXiv:1804.10111},
  year   = {2018}
}

Comments

Keywords: K-theory, topological phases, Krein spaces, PT and c symmetries. 53 pg.; 8 Tables. v2: correction of few typos. Final version accepted for publication on RMP

R2 v1 2026-06-23T01:37:04.688Z