کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5374978 1504283 2010 11 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Nonlinear conductance and noise in boundary sine-Gordon and related models
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی تئوریک و عملی
پیش نمایش صفحه اول مقاله
Nonlinear conductance and noise in boundary sine-Gordon and related models
چکیده انگلیسی
We study a conjecture by Fendley, Ludwig and Saleur for the nonlinear conductance in the boundary sine-Gordon model. They have calculated the perturbative series of twisted partition functions, which require particular (unphysical) imaginary values of the bias, by applying the tools of Jack symmetric functions to the “log-sine” Coulomb gas on a circle. We have analyzed the conjectured relation between the analytically continued free energy and the nonlinear conductance in various limits. We confirm the conjecture for weak and strong-tunneling, in the classical regime, and in the zero temperature limit. We also shed light on this special variant of the ImF-method and compare it with the real-time Keldysh approach. In addition, we address the issue of quantum statistical fluctuations.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Chemical Physics - Volume 375, Issues 2–3, 5 October 2010, Pages 265-275
نویسندگان
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