Density matrix negativity for two oscillators in an Agarwal bath

• Main Authors: Zhao, Yang, Chen, Guan Hua
• Other Authors: School of Materials Science & Engineering
• Format: Article
• Language: English
• Published: 2011
• Subjects: DRNTU::Science::Physics::Atomic physics::Quantum theory
• Online Access: https://hdl.handle.net/10356/92422; http://hdl.handle.net/10220/6746
• Institution: Nanyang Technological University

A system of two harmonic oscillators is placed in an Agarwal bath. The resulting quantum master equations are studied with the help of quantum characteristic functions. The density matrix positivity is investigated in view of the recent interest in searching for a sound...