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quant-ph2026
Consistency of Generalised Probabilistic Theories is Undecidable
Serge Massar
Generalised Probabilistic Theories (GPTs) provide a unifying framework encompassing classical theories, quantum theories, as well as hypothetical alternatives. We investigate both…
quant-ph1996
Applications of the Complex Geometric "Phase" for Meta-stable Systems
S. Massar
Garrison and Wright showed that upon undergoing cyclic quantum evolution a meta-stable state acquires both a geometric phase and a geometric decay probability. This is described by…