Statistical Properties of a System Consisting of a Superconducting Qubit Coupled to an Optical Field Inside a Transmission Line

被引：0

作者：

Valverde, Clodoaldo ^{[1
,2
]}

Vaz, Gabriela Rodrigues ^{[1
]}

de Oliveira, Vitor Teles ^{[1
]}

Baseia, Basilio ^{[3
,4
]}

机构：

[1] Univ Estadual Goias, Campus Ciencias Exatas & Tecnol,BR 153,Km 98, BR-75132903 Anapolis, Go, Brazil

[2] Univ Paulista UNIP, BR-74845090 Goiania, Go, Brazil

[3] Univ Fed Goias, Inst Fis, BR-74001970 Goiania, Go, Brazil

[4] Univ Fed Paraiba, Dept Fis, BR-58051970 Joao Pessoa, Paraiba, Brazil

来源：

COMMUNICATIONS IN THEORETICAL PHYSICS | 2018年 / 69卷 / 06期

关键词：

excitation inversion; transmission line; entropy; Buck-Sukumar model; CAVITY OPTOMECHANICS; QUANTUM ELECTRODYNAMICS; HYBRID CIRCUIT; ATOM; STATE; RESONATOR; MODEL; REVIVAL;

D O I：

10.1088/0253-6102/69/6/727

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The present work investigates the entropy and the excitation inversion of a coupled system that consists of a qubit represented by a Cooper pair box (CPB) interacting with a transmission line working as a circuit quantum electrodynamics (CQED). The proposed scheme uses the Buck-Sukumar model with a time dependent frequency in the presence of losses to study the evolution of the entropy and the excitation inversion of the system. We have shown that the CQED is much more sensitive to the presence of losses than the CPB. The results also show that it is possible to monitor properties of the subsystems through appropriate choices of the time-dependent parameters.

引用

页码：727 / 734

页数：8

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