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quant-ph2026
Vacuum entanglement in a time-dependent electric field
Álvaro Álvarez-Dom\'ınguez, Luis J. Garay, Mercedes Mart\'ın-Benito +1
We analyze the correlations of the vacuum state of a charged scalar field by constructing localized observables in two disjoint regions. We consider a time-dependent homogeneous el…
quant-ph2024★ 2 cited
Particle detectors under chronological hazard
Ana Alonso-Serrano, Erickson Tjoa, Luis J. Garay +1
We analyze how the presence of closed timelike curves (CTCs) characterizing a time machine can be discerned by placing a local particle detector in a region of spacetime which is c…