78 citations · 122 across the 4 of their papers we have counts for
5 papers · 1 filter
Lorentz-covariant reduced spin density matrix and EPR-Bohm correlations
P. Caban, J. Rembielinski
We show that it is possible to define a Lorentz-covariant reduced spin density matrix for massive particles. Such a matrix allows one to calculate the mean values of observables co…
Unstable particles as open quantum systems
P. Caban, J. Rembielinski, K. A. Smolinski +1
We present the probability preserving description of the decaying particle within the framework of quantum mechanics of open systems taking into account the superselection rule pro…
Kraus representation of destruction of states for one qudit
P. Caban, K. A. Smolinski, Z. Walczak
Quantum operations arise naturally in many fields of quantum information theory and quantum computing. One of the simplest example of quantum operation is the von Neumann-Lueders m…
Einstein-Podolsky-Rosen correlations and Galilean transformations
P. Caban, J. Rembielinski, K. A. Smolinski +1
In this paper we calculate with full details Einstein-Podolsky-Rosen spin correlations in the framework of nonrelativistic quantum mechanics. We consider the following situation: t…
Destruction of states in quantum mechanics
P. Caban, J. Rembielinski, K. A. Smolinski +1
A description of destruction of states on the grounds of quantum mechanics rather than quantum field theory is proposed. Several kinds of maps called supertraces are defined and us…