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quant-ph2025
Complementarity relations for design-structured POVMs in terms of generalized entropies of order
Alexey E. Rastegin
Information entropies give a genuine way to characterize quantitatively an incompatibility in quantum measurements. Together with the Shannon entropy, few families of parametrized…
quant-ph2024
Uncertainty relations for quantum measurements from generalized equiangular tight frames
Alexey E. Rastegin
The current study aims to examine uncertainty relations for measurements from generalized equiangular tight frames. Informationally overcomplete measurements are a valuable tool in…
quant-ph2024
On Kirkwood--Dirac quasiprobabilities and unravelings of quantum channel assigned to a tight frame
Alexey E. Rastegin
An issue which has attracted increasing attention in contemporary researches are Kirkwood--Dirac quasiprobabilities. List of their use includes many questions of quantum physics. A…