Spin bath-mediated decoherence in superconductors
| dc.creator | Prokof'ev, Nikolay | |
| dc.creator | Stamp, Philip | |
| dc.date | 2000-06-04 | |
| dc.date.accessioned | 2026-07-07T02:37:49Z | |
| dc.date.available | 2026-07-07T02:37:49Z | |
| dc.description | We consider a SQUID tunneling between 2 nearly degenerate flux states. Decoherence caused by paramagnetic and nuclear spins in the low-$T$ limit is shown to be much stronger than that from electronic excitations. The decoherence time $τ_ϕ$ is determined by the linewidth $E_o$ of spin bath states, which can be reduced by a correct choice of ring geometry and isotopic purification. $E_o$ can be measured in either field sweep or microwave absorption experiments, allowing both a test of the theory and design control. | |
| dc.description | 5 pages, LaTex, 3 figures, submitted to PRL in May, 2000 | |
| dc.identifier | https://arxiv.org/abs/cond-mat/0006054 | |
| dc.identifier | http://arxiv.org/abs/cond-mat/0006054 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/16437 | |
| dc.subject | Condensed Matter | |
| dc.title | Spin bath-mediated decoherence in superconductors | |
| dc.type | text |