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quant-ph2025
SICs, the Stabilizer Polytope and Majorization
Blake C. Stacey
The theory of majorization provides a unifying account of several ways in which Symmetric Informationally Complete POVMs are extremal entities.
quant-ph2024
Contradictions or Curiosities? On Kent's Critique of the Masanes--Galley--Müller Derivation of the Quantum Measurement Postulates
Blake C. Stacey
Adrian Kent has recently criticized Masanes, Galley and Müller's work on postulates for quantum mechanics. MGM claim to find two contradictions in Kent's criticism. I argue that ne…
quant-ph2023
Further Exercises about Sporadic SICs
Blake C. Stacey
I review some recent technical developments in quantum information theory by rephrasing them in the form of exercises.
quant-ph2023
A Critical, But Hopefully Cordial, QBist Reply to Ballentine
Blake C. Stacey
L. E. Ballentine's remarks in Physics Today about the QBist interpretation of quantum mechanics are generally wide of the mark.