309 citations · 830 across the 22 of their papers we have counts for
22 papers
The Pauli objection
Juan Leon, Lorenzo Maccone
Schroedinger's equation says that the Hamiltonian is the generator of time translations. This seems to imply that any reasonable definition of time operator must be conjugate to th…
Localization for Dirac fermions
Aleksander M. Kubicki, Hans Westman, Juan Leon
This work is devoted to incorporating into QFT the notion that particles and hence the particle states should be localizable in space. It focuses on the case of the Dirac field in…
What does it mean for half of an empty cavity to be full?
Eric G. Brown, Marco del Rey, Hans Westman +2
It is well known that the vacuum state of a quantum field is spatially entangled. This is true both in free and confined spaces, for example in an optical cavity. The obvious conse…
Local quanta, unitary inequivalence, and vacuum entanglement
Matias Rodriguez-Vazquez, Marco del Rey, Hans Westman +1
In this work we develop a formalism for describing localised quanta for a real-valued Klein-Gordon field in a one-dimensional box . We quantise the field using non-stationa…
The fate of non-trivial entanglement under gravitational collapse
Eduardo Martin-Martinez, Luis J. Garay, Juan Leon
We analyse the evolution of the entanglement of a non-trivial initial quantum field state (which, for simplicity, has been taken to be a bipartite state made out of vacuum and the…
Short-time quantum detection: probing quantum fluctuations
Marco del Rey, Carlos Sabin, Juan Leon
In this work we study the information provided by a detector click on the state of an initially excited two level system. By computing the time evolution of the corresponding condi…