3 papers
quant-ph2026
Common causes for quantum identical particles
A. Hovhannisyan, S. Weigert, A. E. Allahverdyan
Violations of Bell's inequalities imply that joint probabilities generated by non-commutative measurements on two (non-identical) quantum particles do not have a single common caus…
quant-ph2026
Mutually Unbiased Bases in Composite Dimensions -- A Review
Daniel McNulty, Stefan Weigert
Maximal sets of mutually unbiased bases are useful throughout quantum physics, both in a foundational context and for applications. To date, it remains unknown if complete sets of…
quant-ph2025
Comment on 'Product states and Schmidt rank of mutually unbiased bases in dimension six'
Daniel McNulty, Stefan Weigert
A lemma by Chen et al. [J. Phys. A: Math. Theor. 50, 475304 (2017)] provides a necessary condition on the structure of any complex Hadamard matrix in a set of four mutually unbiase…