Information flow during the quantum-classical transition

ANDRÉS KOWALSKI; MARÍA T. MARTÍN; ÁNGEL PLASTINO; LUCIANO ZUNINO

PHYSICS LETTERS A

ELSEVIER SCIENCE BV

Lugar: Amsterdam, The Netherlands; Año: 2010 vol. 374 p. 1819 - 1826

0375-9601

We have exhaustively investigated the classical limit of the semiclassical evolution with reference to a well-known model that represents the interaction between matter and a given field. In this paper we approach this issue by recourse to a new statistical quantifier called the "symbolic transfer entropy" [Phys. Rev. Lett. 85, 461 (2000); 100 158101 (2008)]. We encounter that the quantum-classical transition gets thereby described as the sign reversal of the dominating direction of the information flow between classical and quantal variables. This can be considered as an evidence of the physical useful of this new statistical quantifier.