Noise and Dissipation in a Circuit Quantum Electrodynamic Description of a Josephson Traveling-Wave Parametric Amplifier

被引：0
|
作者：
Yuan, Yongjie [1 ]
Haider, Michael [1 ]
Russer, Johannes A. [1 ]
Russer, Peter [1 ]
Jirauschek, Christian [1 ]
机构：
[1] Tech Univ Munich, Dept Elect & Comp Engn, Arcisstr 21, D-80333 Munich, Germany
来源：
2020 XXXIIIRD GENERAL ASSEMBLY AND SCIENTIFIC SYMPOSIUM OF THE INTERNATIONAL UNION OF RADIO SCIENCE | 2020年
关键词：
STATE;
D O I：
10.23919/ursigass49373.2020.9232389
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
In this paper, we are constructing a circuit quantum electrodynamic model describing dissipative effects in a Josephson traveling-wave parametric amplifier (JTWPA). Losses and noise are treated using the quantum Langevin method. The total Hamiltonian of our model describes the coupling of the modes in a parametric four-wave-mixing scheme, as well as the interaction with the environment. Based on the Heisenberg equations of motion, we obtain the temporal evolution of the signal photon number and analyze the signal gain of the JTWPA.
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页数：4
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