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Quantitative study of macroscopic quantum tunneling in a dc SQUID: A system with two degrees of freedom
| dc.contributor.author | Li, Shaoxiong | |
| dc.contributor.author | Yu, Yang | |
| dc.contributor.author | Zhang, Yu | |
| dc.contributor.author | Qiu, Wei | |
| dc.contributor.author | Han, Siyuan | |
| dc.contributor.author | Wang, Zhen | |
| dc.date.accessioned | 2007-05-15T21:15:24Z | |
| dc.date.available | 2007-05-15T21:15:24Z | |
| dc.date.issued | 2002-08 | |
| dc.identifier.citation | Li, SX; Yu, Y; Zhang, Y; Qiu, W; Han, S; Wang, Z. Quantitative study of macroscopic quantum tunneling in a dc SQUID: A system with two degrees of freedom. PHYSICAL REVIEW LETTERS. August 2002. 89(9) | |
| dc.identifier.other | http://publish.aps.org/ | |
| dc.identifier.uri | http://hdl.handle.net/1808/1619 | |
| dc.description.abstract | To test whether the theory of macroscopic quantum tunneling (MQT) is applicable to systems with 2 degrees of freedom, we experimentally investigated the switching current distribution of a dc SQUID. Using sample parameters determined from measurements at T=4.2 K, we are able to make quantitative comparison to the theories from 8 mK to 4.2 K. The excellent agreement between the data and the MQT theory demonstrates that tunneling from the zero-voltage state of the dc SQUID is well described by the quantum mechanics. | |
| dc.language.iso | en_US | |
| dc.publisher | AMERICAN PHYSICAL SOC | |
| dc.title | Quantitative study of macroscopic quantum tunneling in a dc SQUID: A system with two degrees of freedom | |
| dc.type | Article | |
| dc.rights.accessrights | openAccess |
