TY - GEN
T1 - Quantum Models for Flux-Driven Superconducting Traveling-Wave Parametric Amplifiers with Different Nonlinear Junction Topologies
AU - Haider, Michael
AU - Yuan, Yongjie
AU - Russer, Johannes A.
AU - Jirauschek, Christian
N1 - Publisher Copyright:
© 2023 IEEE.
PY - 2023
Y1 - 2023
N2 - In this contribution, we investigate different types of Josephson junction arrays that are embedded in coplanar microwave transmission lines, acting as traveling-wave parametric amplifiers. For the realization of traveling-wave parametric amplifiers, different Josephson junction array geometries have been proposed in the literature. Here, we investigate the amplifier's Josephson nonlinearity along with the gain performance, following a general method to derive the nonlinear wave-mixing coefficients from the current-phase relation of different junction array topologies. These nonlinear coefficients are then incorporated into a corresponding Hamiltonian, which is used in order to solve the Heisenberg equations of motion of the photon number operator, determining the gain of the amplifier.
AB - In this contribution, we investigate different types of Josephson junction arrays that are embedded in coplanar microwave transmission lines, acting as traveling-wave parametric amplifiers. For the realization of traveling-wave parametric amplifiers, different Josephson junction array geometries have been proposed in the literature. Here, we investigate the amplifier's Josephson nonlinearity along with the gain performance, following a general method to derive the nonlinear wave-mixing coefficients from the current-phase relation of different junction array topologies. These nonlinear coefficients are then incorporated into a corresponding Hamiltonian, which is used in order to solve the Heisenberg equations of motion of the photon number operator, determining the gain of the amplifier.
KW - Josephson transmission line
KW - Quantum computing
KW - superconducting circuits
KW - traveling-wave parametric amplifier
UR - http://www.scopus.com/inward/record.url?scp=85168557814&partnerID=8YFLogxK
U2 - 10.1109/IMS37964.2023.10187984
DO - 10.1109/IMS37964.2023.10187984
M3 - Conference contribution
AN - SCOPUS:85168557814
T3 - IEEE MTT-S International Microwave Symposium Digest
SP - 664
EP - 667
BT - 2023 IEEE/MTT-S International Microwave Symposium, IMS 2023
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 2023 IEEE/MTT-S International Microwave Symposium, IMS 2023
Y2 - 11 June 2023 through 16 June 2023
ER -