Influence of quasiparticle multi-tunneling on the energy flow through the superconducting tunnel junction
Abstract
Superconducting tunnel junction (STJ) detector consists of two layers of superconducting material separated by thin insulating barrier. An incident particle produces in superconductor excess nonequilibrium quasiparticles. Each quasiparticle in superconductor should be considered as quantum superposition of electron-like and hole-like excitations. This duality nature of quasiparticle leads to the effect of multi-tunneling. Quasiparticle starts to tunnel back and forth through the insulating barrier. After tunneling from biased electrode quasiparticle loses its energy via phonon emission. Eventually, the energy that equals to the difference in quasiparticle energy between two electrodes is deposited in the signal electrode. Because of the process of multi-tunneling, one quasiparticle can deposit energy more than once. In this work, the theory of branching cascade processes was applied to the process of energy deposition caused by the quasiparticle multi-tunneling. The formulae for the mean value and variance of the energy transferred by one quasiparticle into heat were derived. (authors)
- Authors:
-
- National Research Nuclear Univ. - Moscow Engineering Physics Inst., 31, Kashirskoye Shosse, 115409, Moscow (Russian Federation)
- Publication Date:
- OSTI Identifier:
- 22039893
- Resource Type:
- Conference
- Resource Relation:
- Conference: ANIMMA 2011: 2. International Conference on Advancements in Nuclear Instrumentation, Measurement Methods and their Applications, Ghent (Belgium), 6-9 Jun 2011; Other Information: Country of input: France; 9 refs.; IEEE Catalog Number: CFP1124I-CDR
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; 46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY; BRANCHING RATIO; ELECTRODES; ELECTRONS; EMISSION; ENERGY TRANSFER; EXCITATION; HOLES; PHONONS; SUPERCONDUCTING JUNCTIONS; SUPERCONDUCTIVITY; SUPERCONDUCTORS; TUNNEL EFFECT
Citation Formats
Samedov, V V, and Tulinov, B M. Influence of quasiparticle multi-tunneling on the energy flow through the superconducting tunnel junction. United States: N. p., 2011.
Web. doi:10.1109/ANIMMA.2011.6172862.
Samedov, V V, & Tulinov, B M. Influence of quasiparticle multi-tunneling on the energy flow through the superconducting tunnel junction. United States. https://doi.org/10.1109/ANIMMA.2011.6172862
Samedov, V V, and Tulinov, B M. 2011.
"Influence of quasiparticle multi-tunneling on the energy flow through the superconducting tunnel junction". United States. https://doi.org/10.1109/ANIMMA.2011.6172862.
@article{osti_22039893,
title = {Influence of quasiparticle multi-tunneling on the energy flow through the superconducting tunnel junction},
author = {Samedov, V V and Tulinov, B M},
abstractNote = {Superconducting tunnel junction (STJ) detector consists of two layers of superconducting material separated by thin insulating barrier. An incident particle produces in superconductor excess nonequilibrium quasiparticles. Each quasiparticle in superconductor should be considered as quantum superposition of electron-like and hole-like excitations. This duality nature of quasiparticle leads to the effect of multi-tunneling. Quasiparticle starts to tunnel back and forth through the insulating barrier. After tunneling from biased electrode quasiparticle loses its energy via phonon emission. Eventually, the energy that equals to the difference in quasiparticle energy between two electrodes is deposited in the signal electrode. Because of the process of multi-tunneling, one quasiparticle can deposit energy more than once. In this work, the theory of branching cascade processes was applied to the process of energy deposition caused by the quasiparticle multi-tunneling. The formulae for the mean value and variance of the energy transferred by one quasiparticle into heat were derived. (authors)},
doi = {10.1109/ANIMMA.2011.6172862},
url = {https://www.osti.gov/biblio/22039893},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Fri Jul 01 00:00:00 EDT 2011},
month = {Fri Jul 01 00:00:00 EDT 2011}
}