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Secular growths and their relation to equilibrium states in perturbative QFT
Stefano Galanda, Nicola Pinamonti, Leonardo Sangaletti
In the perturbative treatment of interacting quantum field theories, if the interaction Lagrangian changes adiabatically in a finite interval of time, secular growths may appear in…
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Relative Entropy of Fermion Excitation States on the CAR Algebra
Stefano Galanda, Albert Much, Rainer Verch
The relative entropy of certain states on the algebra of canonical anticommutation relations (CAR) is studied in the present work. The CAR algebra is used to describe fermionic deg…