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Decoherence, Anti-Decoherence, and Fisher Information.
Kowalski, Andres M; Plastino, Angelo.
Afiliação
  • Kowalski AM; Departamento de Física, Universidad Nacional de La Plata, La Plata B1900, Argentina.
  • Plastino A; Comisión de Investigaciones Científicas (CICPBA), La Plata B1900, Argentina.
Entropy (Basel) ; 23(8)2021 Aug 12.
Article em En | MEDLINE | ID: mdl-34441175
In this work, we study quantum decoherence as reflected by the dynamics of a system that accounts for the interaction between matter and a given field. The process is described by an important information geometry tool: Fisher's information measure (FIM). We find that it appropriately describes this concept, detecting salient details of the quantum-classical changeover (qcc). A good description of the qcc report can thus be obtained; in particular, a clear insight into the role that the uncertainty principle (UP) plays in the pertinent proceedings is presented. Plotting FIM versus a system's motion invariant related to the UP, one can also visualize how anti-decoherence takes place, as opposed to the decoherence process studied in dozens of papers. In Fisher terms, the qcc can be seen as an order (quantum)-disorder (classical, including chaos) transition.
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Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Idioma: En Revista: Entropy (Basel) Ano de publicação: 2021 Tipo de documento: Article País de afiliação: Argentina País de publicação: Suíça

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Idioma: En Revista: Entropy (Basel) Ano de publicação: 2021 Tipo de documento: Article País de afiliação: Argentina País de publicação: Suíça