429 citations · 1.3k across the 21 of their papers we have counts for
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Relativistic quantum reference frames: the operational meaning of spin
Flaminia Giacomini, Esteban Castro-Ruiz, Časlav Brukner
The spin is the prime example of a qubit. Encoding and decoding information in the spin qubit is operationally well defined through the Stern-Gerlach set-up in the non-relativistic…
A Spacetime Area Law Bound on Quantum Correlations
Ilya Kull, Philippe Allard Guérin, Časlav Brukner
Area laws are a far-reaching consequence of the locality of physical interactions, and they are relevant in a range of systems, from black holes to quantum many-body systems. Typic…
Composition rules for quantum processes: a no-go theorem
Philippe Allard Guérin, Marius Krumm, Costantino Budroni +1
A quantum process encodes the causal structure that relates quantum operations performed in local laboratories. The process matrix formalism includes as special cases quantum mecha…
Observer-dependent locality of quantum events
Philippe Allard Guérin, Časlav Brukner
In general relativity, the causal structure between events is dynamical, but it is definite and observer-independent; events are point-like and the membership of an event A in the…
A no-go theorem for observer-independent facts
Caslav Brukner
In his famous thought experiment, Wigner assigns an entangled state to the composite quantum system made up of Wigner's friend and her observed system. While the two of them have d…