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arXiv:2505.14076

The Relative Fermionic Entropy in Two-Dimensional Rindler Spacetime

Felix Finster, Albert Much

Published May 20, 2025• 0 citations
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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.

DOI
10.48550/arxiv.2505.14076

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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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