2 papers
math-ph2025
Density matrices and entropy operator for non-Hermitian quantum mechanics
Fabio Bagarello, Francesco Gargano, Lidia Saluto
In this paper we consider density matrices operator related to non-Hermitian Hamiltonians. In particular, we analyse two natural extensions of what is usually called a density matr…
math-ph2024
Coherent States of Graphene Layer with and without a PT-symmetric Chemical Potential
Fabio Bagarello, Francesco Gargano, Lidia Saluto
In this paper we construct different classes of coherent and bicoherent states for the graphene tight-binding model in presence of a magnetic field, and for a deformed version wher…