Quantum Zeno effect in the Cooper-pair transport through a double-island Josephson system
| dc.creator | Shnirman, Alexander | |
| dc.creator | Makhlin, Yuriy | |
| dc.date | 2003-11-08 | |
| dc.date.accessioned | 2026-07-07T02:54:40Z | |
| dc.date.available | 2026-07-07T02:54:40Z | |
| dc.description | Motivated by recent experiments, we analyze transport of Cooper pairs through a double-island Josephson qubit. At low bias in a certain range of gate voltages coherent superpositions of charge states play a crucial role. Analysis of the evolution of the density matrix allows us to cover a wide range of parameters, incl. situations with degenerate levels, when dissipation strongly affects the coherent eigenstates. At high noise levels the so-called Zeno effect can be observed, which slows down the transport. Our analysis explains certain features of the I-V curves, in particular the visibility and shape of resonant peaks and lines. | |
| dc.identifier | https://arxiv.org/abs/cond-mat/0311189 | |
| dc.identifier | http://arxiv.org/abs/cond-mat/0311189 | |
| dc.identifier | JETP Lett. 78, 447 (2003) [Pisma ZhETF 78, 915 (2003)] | |
| dc.identifier | doi:10.1134/1.1633315 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/22644 | |
| dc.subject | Mesoscale and Nanoscale Physics | |
| dc.title | Quantum Zeno effect in the Cooper-pair transport through a double-island Josephson system | |
| dc.type | text |