2 papers
hep-ph2025
The Non-Relativistic Limit of Keldysh Spinors
A. Jourjine
Keldysh spinors obey Dirac equation, but have the negative of the Dirac action and Hamiltonian. In an example of the U(1) EM coupling, we show that, despite the sign changes, they…
hep-th2024
The Negative Action Keldysh Spinors
A. Jourjine
We discuss quantization of Dirac spinors with action which is the negative of the standard action. Using the Keldysh QFT formulation, we show that the standard quantization of such…