The Relative Fermionic Entropy in Two-Dimensional Rindler Spacetime

• URL: http://arxiv.org/abs/2505.14076v2
• Date: Mon, 26 May 2025 12:05:11 GMT
• Title: The Relative Fermionic Entropy in Two-Dimensional Rindler Spacetime
• Authors: Felix Finster, Albert Much,
• Abstract summary: The fermionic relative entropy in two-dimensional Rindler spacetime is studied using both modular theory and the reduced one-particle density operators.<n>As an application, the relative entropy is computed for a class of non-unitary excitations.
• Score: 0.0
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: The fermionic relative entropy in two-dimensional Rindler spacetime is studied using both modular theory and the reduced one-particle density operators. The methods and results are compared. A formula for the relative entropy for general Gaussian states is derived. As an application, the relative entropy is computed for a class of non-unitary excitations.

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