IEICE TRANSACTIONS on Electronics
Flux-Quantum Transitions in a Three-Junction SQUID Controlled by Two RF Signals
Summary :
We present analytical and numerical results on the flux-quantum transitions in a three-junction superconducting quantum interference device (3J-SQUID) controlled by two RF signals. The 3J-SQUID has two superconducting loops, and the RF signals are magnetically coupled to the loops. Flux-quantum transitions in the 3J-SQUID loops can be controlled by utilizing the phase difference of the two RF signals. Under proper conditions, we can obtain a situation where one flux quantum passes through the 3J-SQUID per one cycle of the RF signals without DC current biasing, which results in a zero-crossing step on the current-voltage characteristics. In this paper, we first explain the operation principle by using a quantum state diagram of a 3J-SQUID. Next, we numerically simulate RF-induced transitions of the quantum states. A zero-crossing step on the current-voltage characteristics is demonstrated. We also investigate dependence of zero-crossing steps upon parameters of the 3J-SQUID and RF signals.
- Publication
- IEICE TRANSACTIONS on Electronics Vol.E85-C No.3 pp.803-808
- Publication Date
- 2002/03/01
- Publicized
- Online ISSN
- DOI
- Type of Manuscript
- Special Section PAPER (Special Issue on Superconductive Electronics)
- Category
- Novel Devices and Device Physics
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Yoshinao MIZUGAKI, Jian CHEN, Kensuke NAKAJIMA, Tsutomu YAMASHITA, "Flux-Quantum Transitions in a Three-Junction SQUID Controlled by Two RF Signals" in IEICE TRANSACTIONS on Electronics,
vol. E85-C, no. 3, pp. 803-808, March 2002, doi: .
Abstract: We present analytical and numerical results on the flux-quantum transitions in a three-junction superconducting quantum interference device (3J-SQUID) controlled by two RF signals. The 3J-SQUID has two superconducting loops, and the RF signals are magnetically coupled to the loops. Flux-quantum transitions in the 3J-SQUID loops can be controlled by utilizing the phase difference of the two RF signals. Under proper conditions, we can obtain a situation where one flux quantum passes through the 3J-SQUID per one cycle of the RF signals without DC current biasing, which results in a zero-crossing step on the current-voltage characteristics. In this paper, we first explain the operation principle by using a quantum state diagram of a 3J-SQUID. Next, we numerically simulate RF-induced transitions of the quantum states. A zero-crossing step on the current-voltage characteristics is demonstrated. We also investigate dependence of zero-crossing steps upon parameters of the 3J-SQUID and RF signals.
URL: https://global.ieice.org/en_transactions/electronics/10.1587/e85-c_3_803/_p
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@ARTICLE{e85-c_3_803,
author={Yoshinao MIZUGAKI, Jian CHEN, Kensuke NAKAJIMA, Tsutomu YAMASHITA, },
journal={IEICE TRANSACTIONS on Electronics},
title={Flux-Quantum Transitions in a Three-Junction SQUID Controlled by Two RF Signals},
year={2002},
volume={E85-C},
number={3},
pages={803-808},
abstract={We present analytical and numerical results on the flux-quantum transitions in a three-junction superconducting quantum interference device (3J-SQUID) controlled by two RF signals. The 3J-SQUID has two superconducting loops, and the RF signals are magnetically coupled to the loops. Flux-quantum transitions in the 3J-SQUID loops can be controlled by utilizing the phase difference of the two RF signals. Under proper conditions, we can obtain a situation where one flux quantum passes through the 3J-SQUID per one cycle of the RF signals without DC current biasing, which results in a zero-crossing step on the current-voltage characteristics. In this paper, we first explain the operation principle by using a quantum state diagram of a 3J-SQUID. Next, we numerically simulate RF-induced transitions of the quantum states. A zero-crossing step on the current-voltage characteristics is demonstrated. We also investigate dependence of zero-crossing steps upon parameters of the 3J-SQUID and RF signals.},
keywords={},
doi={},
ISSN={},
month={March},}
Copy
TY - JOUR
TI - Flux-Quantum Transitions in a Three-Junction SQUID Controlled by Two RF Signals
T2 - IEICE TRANSACTIONS on Electronics
SP - 803
EP - 808
AU - Yoshinao MIZUGAKI
AU - Jian CHEN
AU - Kensuke NAKAJIMA
AU - Tsutomu YAMASHITA
PY - 2002
DO -
JO - IEICE TRANSACTIONS on Electronics
SN -
VL - E85-C
IS - 3
JA - IEICE TRANSACTIONS on Electronics
Y1 - March 2002
AB - We present analytical and numerical results on the flux-quantum transitions in a three-junction superconducting quantum interference device (3J-SQUID) controlled by two RF signals. The 3J-SQUID has two superconducting loops, and the RF signals are magnetically coupled to the loops. Flux-quantum transitions in the 3J-SQUID loops can be controlled by utilizing the phase difference of the two RF signals. Under proper conditions, we can obtain a situation where one flux quantum passes through the 3J-SQUID per one cycle of the RF signals without DC current biasing, which results in a zero-crossing step on the current-voltage characteristics. In this paper, we first explain the operation principle by using a quantum state diagram of a 3J-SQUID. Next, we numerically simulate RF-induced transitions of the quantum states. A zero-crossing step on the current-voltage characteristics is demonstrated. We also investigate dependence of zero-crossing steps upon parameters of the 3J-SQUID and RF signals.
ER -
English
