TY - JOUR
T1 - Unitarity as preservation of entropy and entanglement in quantum systems
AU - Hulpke, Florian
AU - Poulsen, Uffe V.
AU - Sanpera, Anna
AU - Sen, Aditi
AU - Sen, Ujjwal
AU - Lewenstein, MacIej
PY - 2006/4/1
Y1 - 2006/4/1
N2 - The logical structure of Quantum Mechanics (QM) and its relation to other fundamental principles of Nature has been for decades a subject of intensive research. In particular, the question whether the dynamical axiom of QM can be derived from other principles has been often considered. In this contribution, we show that unitary evolutions arise as a consequences of demanding preservation of entropy in the evolution of a single pure quantum system, and preservation of entanglement in the evolution of composite quantum systems. 6. © 2006 Springer Science+Business Media, Inc.
AB - The logical structure of Quantum Mechanics (QM) and its relation to other fundamental principles of Nature has been for decades a subject of intensive research. In particular, the question whether the dynamical axiom of QM can be derived from other principles has been often considered. In this contribution, we show that unitary evolutions arise as a consequences of demanding preservation of entropy in the evolution of a single pure quantum system, and preservation of entanglement in the evolution of composite quantum systems. 6. © 2006 Springer Science+Business Media, Inc.
KW - Dynamical axiom of Quantum mechanics
KW - Entanglement preservation
KW - Entropy preservation
U2 - 10.1007/s10701-005-9035-7
DO - 10.1007/s10701-005-9035-7
M3 - Review article
SN - 0015-9018
VL - 36
SP - 477
EP - 499
JO - Foundations of Physics
JF - Foundations of Physics
IS - 4 SPEC. ISS.
ER -