Fermionic model with a non-Hermitian Hamiltonian

Autor: Bebiano, Natália, da Providência, João, Nishiyama, Seiya, da Providência, João P.
Rok vydání: 2019
Předmět:
Druh dokumentu: Working Paper
DOI: 10.1007/s13538-019-00729-7
Popis: This paper deals with the mathematical spectral analysis and physical interpretation of a fermionic system described by a non-Hermitian Hamiltonian possessing real eigenvalues. A statistical thermodynamical description of such a system is considered. Approximate expressions for the energy expectation value and the number operator expectation value, in terms of the absolute temperature $T$ and of the chemical potential $\mu$, are obtained, based on the Euler-Maclaurin formula.
Databáze: arXiv