Open AccessGinzburg-Landau theory for the operation principle of superconducting delay-line inductance detectors
Author(s) -
Tomio Koyama,
Toshimasa Ishida
Publication year - 2019
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1293/1/012050
Subject(s) - kinetic inductance , superconductivity , physics , stripline , inductance , transmission line , detector , voltage , condensed matter physics , optics , electrical engineering , engineering , quantum mechanics
Transmission of voltage pulses generated by local heating in a kinetic inductance detector made of a superconducting stripline is theoretically investigated on the basis of the TDGL equation. The effect of thermal diffusion is also incorporated into the electrodynamics of this system. We derive an equation that can describe the generation and transmission of voltage pulses in this detector. A pair of voltage pulses with opposite polarities are created when a spatiotemporal variation in the superconducting order parameter occurs in a small region of this superconducting stripline. We clarify the characteristic feature in the shape of the voltage pulse.