149 citations · 1k across the 32 of their papers we have counts for
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Infrared Divergences and Quantum Coherence
Cesar Gomez, Raoul Letschka, Sebastian Zell
In theories with long-range forces like QED or perturbative gravity, only rates that include emitted soft radiation are non-vanishing. Independently of detector resolution, finite…
Classicality and Quantum Break-Time for Cosmic Axions
Gia Dvali, Sebastian Zell
We investigate the length of the period of validity of a classical description for the cosmic axion field. To this end, we first show that we can understand the oscillating axion s…
Black Hole Evaporation, Quantum Hair and Supertranslations
Cesar Gomez, Sebastian Zell
In a black hole, hair and quantum information retrieval are interrelated phenomena. The existence of any new form of hair necessarily implies the existence of features in the quant…
Quantum Break-Time of de Sitter
Gia Dvali, Cesar Gomez, Sebastian Zell
The quantum break-time of a system is the time-scale after which its true quantum evolution departs from the classical mean field evolution. For capturing it, a quantum resolution…