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Pure state transformations induced by linear operators

open access: yes, 2005
We generalise Wigner's theorem to its most general form possible for B(h) in the sense of completely characterising those vector state transformations of B(h) that appear as restrictions of duals of linear operators on B(h).
Labuschagne, L.E.
core   +1 more source

On The Banach Algebra of Bounded Linear Operators on a BK Space and Applications

open access: yes, 2008
In this thesis we give some properties of Banach algebra of bounded operators B(X) where X is a BK space, and study the solvability of the equation Ax=b for b ∈ {sα, s◦α, sα(c), lp(α)} with α ∈ U+ and 1 ≤ p < ∞. We study the solvability of the equation Tax = b where b ∈ X(∆k) for an integer k ≥ 1, X ∈ {sα, s◦α, sα(c), lp(α)}, 1 ≤ p < ∞ and Ta is a ...
openaire  

Entropy of Quantum States. [PDF]

open access: yesEntropy (Basel), 2021
Facchi P, Gramegna G, Konderak A.
europepmc   +1 more source

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