27 citations · 34 across the 6 of their papers we have counts for
11 papers
Can We Believe in a Purely Unitary Quantum Dynamics?
Fedor Herbut
It is pointed out that the question of a purely unitary quantum dynamics amounts to the question if von Neumann entropy of a dynamically closed quantum system is preserved in evolu…
Mutual Information of Bipartite States and Quantum Discord in Terms of Coherence Information
Fedor Herbut
In relation of observable and quantum state, the entity from previous work quantifies simultaneously coherence, incompatibility and quantumness. In this article its applicati…
Distinguishing quantum measurements of observables in terms of state transformers
Fedor Herbut
The modern framework of state transformers, i. e., the first Kraus representation of quantum measurement, is introduced and related both to the known textbook concepts and to measu…
On Mutual Information in Multipartite Quantum States and Equality in Strong Subadditivity of Entropy
Fedor Herbut
The challenge of equality in the strong subadditivity inequality of entropy is approached via a general additivity of correlation information in terms of nonoverlapping clusters of…
On the meaning of entanglement in quantum measurement
Fedor Herbut
Measurement interaction between a measured object and a measuring instrument, if both are initially in a pure state, produces a (final) bipartite entangled state vector. The quasi-…
Mixing Property of Quantum Relative Entropy
Fedor Herbut
An analogue of the mixing property of quantum entropy is derived for quantum relative entropy.It is applied to the final state of ideal measurement and to the spectral form of the…