4 citations · 9 across the 5 of their papers we have counts for
5 papers
No extension of the Quantum Tensor Product admits a Superposition principle
Vincenzo Fiorentino, Kuntal Sengupta
Textbook quantum superposition refers to the feature that certain linear combinations of Hilbert space rays, each representing a valid quantum state, are themselves valid states. T…
Gleason's Theorem for a Qubit as Part of a Composite System
Vincenzo Fiorentino, Stefan Weigert
We extend Gleason's theorem to the two-dimensional Hilbert space of a qubit by invoking the standard axiom that describes composite quantum systems. The tensor-product structure al…
Beyond the Projection Postulate and Back: Quantum Theories with Generalised State-Update Rules
Vincenzo Fiorentino, Stefan Weigert
Are there consistent and physically reasonable alternatives to the projection postulate? Does it have unique properties compared with acceptable alternatives? We answer these quest…
A Quantum Theory with Non-Collapsing Measurements
Vincenzo Fiorentino, Stefan Weigert
A collapse-free version of quantum theory is examined to systematically study the role of the projection postulate. This foil theory assumes "passive" measurements that do not upda…
Uncertainty relations for the support of quantum states
Vincenzo Fiorentino, Stefan Weigert
Given a narrow signal over the real line, there is a limit to the localisation of its Fourier transform. In spaces of prime dimensions, Tao derived a sharp state-independent uncert…