115 citations · 425 across the 28 of their papers we have counts for
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quant-ph2019★ 28 cited
Quantum marginal problem and incompatibility
Erkka Haapasalo, Tristan Kraft, Nikolai Miklin +1
One of the basic distinctions between classical and quantum mechanics is the existence of fundamentally incompatible quantities. Such quantities are present on all levels of quantu…
quant-ph2019★ 1 cited
The Choi-Jamiolkowski isomorphism and covariant quantum channels
Erkka Haapasalo
A generalization of the Choi-Jamiolkowski isomorphism for completely positive maps between operator algebras is introduced. Particular emphasis is placed on the case of normal unit…
quant-ph2019★ 15 cited
Compatibility of covariant quantum channels with emphasis on Weyl symmetry
Erkka Haapasalo
Compatibility conditions of quantum channels featuring symmetry through covariance are studied. Compatibility here means the possibility of obtaining two or more channels through p…