Gaussian solitons in nonlocal media:variational analysis

• 来源期刊: 中国物理B（英文版）
• 关键词: Gaussian solitons nonlocal nonlinearity
• 年，卷（期）: 2009,（7）
• 页码范围: 2822-2827
• 页数: 6页
• 语种: 英文

摘要

Exact solutions of Gaussian solitons in nonlinear media with a Gaussian nonlocal response are obtained. Using the variational approach, we obtain the approximate solutions of such solitons when the degree of the nonlocality is arbitrary. Specifically, we study the conditions for Gaussian solitons that propagate in weakly and highly nonlocal media. We also compare the variational result with the known exact solutions for weakly and highly nonlocal media.