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Time Dependence of Partial Integrated Charge Fluctuations in STJs

2023-10-14 20:48:47

Multiple tunneling of quasiparticles in a superconducting tunnel junction (STJ) detector increases the variation of measured charge. In order to optimize the energy resolution of the STJ detector, it is necessary to know the time dependence of the integrated charge and its noise. In this study, the theory of the branching cascade process was applied to the quasi - particle multichannel process. The duality of quasiparticles and the coupling of quasiparticles to the phonon subsystem were discussed.

In several years, superconducting tunnel junction detectors (STJ) may be a viable alternative to CCD (charge coupled device) for astronomy and astrophysics. These devices are effective over a wide range from ultraviolet to infrared and X-rays. This technology has been tested on the SCAM device William Herschel telescope. The voltage and current through the Josephson junction are the "phase difference" of the entire junction (ie the difference in phase coefficient between the two superconductors of the Ginzburg-Landau complex order parameter, or equivalently the parameter). And constant, junction "critical current". Critical current is an important phenomenological parameter of a device that may be affected by temperature and applied magnetic field. Physical constant is flux quantum, its reciprocal is Josephson constant.

When the charge carriers are accelerated (as opposed to moving at a constant speed), a varying magnetic field is generated. This creates a varying electric field, which in turn generates another varying magnetic field. As a result, you can get "leap level" effect that both fields can move over the long distance of the universe. This joint field is called an electromagnetic field. This is a phenomenon that enables wireless communication and broadcasting.