States of the quantized electromagnetic field with added photons under the action of the environment: attenuation and amplification

• Grant number: 19/00291-1
• Support Opportunities: Scholarships in Brazil - Scientific Initiation
• Start date: June 01, 2019
• End date: December 31, 2019
• Field of knowledge: Physical Sciences and Mathematics - Physics - General Physics
• Principal Investigator: Antonio Vidiella Barranco
• Grantee: Eric Perides Mattos
• Host Institution: Instituto de Física Gleb Wataghin (IFGW). Universidade Estadual de Campinas (UNICAMP). Campinas , SP, Brazil

Abstract

The purpose of this project is the initiation of the student in the area of open quantum systems. For this purpose, specific topics of the area of quantum optics will be initially studied and discussed. An approach will be made according to the method of master equations, the standard formalism for open quantum systems. The project will involve the study of the evolution of (monomode) states of the quantized cavity field under the action of a thermal bath. It will be investigated, in particular, the effect of the temperature of the bath when its initial state is modified by the addition of photons. Although it is possible to treat the simpler cases analytically, we will adopt a predominately numerical approach, using, for example, the open code software QuTip.

Scientific publications

(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)

MATTOS, E. P.; VIDIELLA-BARRANCO, A.. Time evolution of the quantized field coupled to a thermal bath: A phase space approach. ANNALS OF PHYSICS, v. 422, NOV 2020. (19/00291-1)