Related papers: The Non-Relativistic Limit of Keldysh Spinors

The Non-Relativistic Limit of Keldysh Spinors

URL: http://arxiv.org/abs/2501.04514v1
Date: Wed, 08 Jan 2025 14:04:39 GMT
Title: The Non-Relativistic Limit of Keldysh Spinors
Authors: A. Jourjine,
Abstract summary: We show that despite the sign changes, Keldysh spinors have a well-defined non-relativistic limit resulting in quantum mechanics with the positive-definite Pauli Hamiltonian.<n>When non-relativistic Dirac and Keldysh fields are brought to interact, we observe curious decoupling of the two fields in mass-like and vector couplings.
Score: 0.0
License: http://creativecommons.org/licenses/by-nc-sa/4.0/
Abstract: 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 have a well-defined non-relativistic limit resulting in quantum mechanics with the positive-definite Pauli Hamiltonian. When non-relativistic Dirac and Keldysh fields are brought to interact, we observe curious decoupling of the two fields in mass-like and vector couplings.

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