302 citations · 4.8k across the 103 of their papers we have counts for
103 papers
A non-perturbative analysis of spin-boson interactions using the Weyl relations
José de Ramón, Eduardo Martin-Martinez
We perform a non-perturbative analysis of the dynamics of a two-level quantum system subjected to repeated interactions with a bosonic environment when these interactions are inten…
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…
Transmission of quantum information through quantum fields
Petar Simidzija, Aida Ahmadzadegan, Achim Kempf +1
We investigate the quantum channel consisting of two localized quantum systems that communicate through a scalar quantum field. We choose a scalar field rather than a tensor or vec…
Faster-than-light signalling in the rotating-wave approximation
Nicholas Funai, Eduardo Martin-Martinez
We present new results on the causality violations introduced by the rotating wave approximation commonly used in quantum optics and high-energy physics. We find that the causality…
Gravitational wave emission from the CMB and other thermal fields
Petar Simidzija, Achim Kempf, Eduardo Martin-Martinez
We calculate the gravitational wave power density emitted by quantum thermal sources. As particular cases, we calculate the emission of gravitational waves from the cosmic microwav…
Zeno Friction and Anti-friction from Quantum Collision Models
Daniel Grimmer, Achim Kempf, Robert B. Mann +1
We analyze the quantum mechanics of the friction experienced by a small system as it moves non-destructively with velocity over a surface. Specifically, we model the interactio…