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quant-ph2025
An Elementary Characterization of Bargmann Invariants
Sagar Silva Pratapsi, João Gouveia, Leonardo Novo +1
Bargmann invariants, also known as multivariate traces of quantum states , are unitary invariant quantities used to characterize weak valu…
quant-ph2025
Quantum speed limit for Kirkwood-Dirac quasiprobabilities
Sagar Silva Pratapsi, Sebastian Deffner, Stefano Gherardini
What is the minimal time until a quantum system can exhibit genuine quantum features? To answer this question we derive quantum speed limits for two-time correlation functions aris…