Dissipative Breathers in rf SQUID Metamaterials

摘要：

The existence and stability of dissipative breathers in rf SQUID (Superconducting Quantum Interference Device) arrays is investigated numerically. In such arrays, the nonlinearity which is intrinsic to each SQUID, along with the weak magnetic coupling of each SQUID to its nearest neighbors, result in the formation of discrete breathers. We analyze several discrete breather excitations in rf SQUID arrays driven by alternating flux sources in the presence of losses. The delicate balance between internal power losses and input power, results in the formation of dissipative discrete breather (DDB) structures up to relatively large coupling parameters. It is shown that DDBs may locally alter the magnetic response of an rf SQUID array from paramagnetic to diamagnetic or vice versa.

作者: G.P.Tsironis N.Lazarides M.Eleftheriou

作者单位: Department of Physics,University of Crete,and Institute of Electronic Structure and Laser Foundation Department of Physics,University of Crete,and Institute of Electronic Structure and Laser Foundation Department of Physics,University of Crete,and Institute of Electronic Structure and Laser Foundation

会议类型: 国际会议

会议名称: Progress in Electromagnetics Research Symposium 2009(2009年电磁学研究新进展学术研讨会)(PIERS 2009)

会议地点: 北京

会议语种:英文

页码: 52-56

在线出版日期: 2009-03-23（万方平台首次上网日期，不代表论文的发表时间）