21 citations · 130 across the 12 of their papers we have counts for
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quant-ph2020★ 19 cited
Superadditivity of channel capacity through quantum fields
Koji Yamaguchi, Aida Ahmadzadegan, Petar Simidzija +2
Given that any communication is communication through quantum fields, we here study the scenario where a sender, Alice, causes information-carrying disturbances in a quantum field.…
quant-ph2020★ 14 cited
Duality in the dynamics of Unruh-DeWitt detectors in conformally related spacetimes
Masahiro Hotta, Achim Kempf, Eduardo Martín-Martínez +2
We prove a nonperturbative duality concerning the dynamics of harmonic-oscillator-type Unruh-DeWitt detectors in curved spacetimes. Concretely, using the Takagi transformation we s…