88 citations · 446 across the 13 of their papers we have counts for
13 papers
The time traveler's guide to the quantization of zero modes
Ana Alonso-Serrano, Erickson Tjoa, Luis J. Garay +1
We study the relationship between the quantization of a massless scalar field on the two-dimensional Einstein cylinder and in a spacetime with a time machine. We find that the latt…
A detector-based measurement theory for quantum field theory
José Polo-Gómez, Luis J. Garay, Eduardo Martín-Martínez
We propose a measurement theory for quantum fields based on measurements made with localized non-relativistic systems that couple covariantly to quantum fields (like the Unruh-DeWi…
Anti-particle detector models in QFT
T. Rick Perche, Eduardo Martín-Martínez
We analyze families of particle detector models that linearly couple to different kinds of fermionic and bosonic fields. We also study the response of these detectors to particle a…
Dimensional reduction of cavities with axial symmetry: A complete analysis of when an optical fiber is approximately one-dimensional
Daniel Grimmer, Richard Lopp, Eduardo Martín-Martínez
Intuition dictates that a very long, very thin cavity (e.g., a fiber optic cable) could perhaps be modeled as an approximately one dimensional system. In this paper we rigorously e…
What makes a particle detector click
Erickson Tjoa, Irene López Gutiérrez, Allison Sachs +1
We highlight fundamental differences in the models of light-matter interaction between the behaviour of Fock state detection in free space versus optical cavities. To do so, we stu…
Relativistic causality in particle detector models: Faster-than-light signalling and "Impossible measurements"
José de Ramón, Maria Papageorgiou, Eduardo Martín-Martínez
We analyze potential violations of causality in Unruh DeWitt-type detector models in relativistic quantum information. We proceed by first studying the relation between faster-than…
The Unruh effect in slow motion
Silas Vriend, Daniel Grimmer, Eduardo Martín-Martínez
We show under what conditions an accelerated detector (e.g., an atom/ion/molecule) thermalizes while interacting with the vacuum state of a quantum field in a setup where the detec…
Quantum delocalization, gauge and quantum optics: The light-matter interaction in relativistic quantum information
Richard Lopp, Eduardo Martín-Martínez
We revisit the interaction of a first-quantized atomic system (consisting of two charged quantum particles) with the quantum electromagnetic field, pointing out the subtleties rela…
The First Law of Quantum Field Thermodynamics
Adam Teixidó-Bonfill, Alvaro Ortega, Eduardo Martín-Martínez
We study the notion of work fluctuations in quantum field theory, highlighting that the most common definitions used in finite-dimensional quantum systems cannot be applied to quan…
Broken covariance of particle detector models in relativistic quantum information
Eduardo Martín-Martínez, T. Rick Perche, Bruno de S. L. Torres
We show that the predictions of spatially smeared particle detectors coupled to quantum fields are not generally covariant outside the pointlike limit. This lack of covariance mani…
Vacuum entanglement harvesting with a zero mode
Erickson Tjoa, Eduardo Martín-Martínez
We investigate vacuum entanglement harvesting in the presence of a zero mode. We show that, for a variety of detector models and couplings (namely, Unruh-DeWitt qubit and harmonic…
Communication through quantum fields near a black hole
Robert H. Jonsson, David Q. Aruquipa, Marc Casals +2
We study the quantum channel between two localized first-quantized systems that communicate in 3+1 dimensional Schwarzschild spacetime via a quantum field. We analyze the informati…
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.…