Nonlinear Model and Surface Fluctuation Model in the Large N Limit
نویسندگان
چکیده
منابع مشابه
the study of bright and surface discrete cavity solitons dynamics in saturable nonlinear media
امروزه سالیتون ها بعنوان امواج جایگزیده ای که تحت شرایط خاص بدون تغییر شکل در محیط منتشر می-شوند، زمینه مطالعات گسترده ای در حوزه اپتیک غیرخطی هستند. در این راستا توجه به پدیده پراش گسسته، که بعنوان عامل پهن شدگی باریکه نوری در آرایه ای از موجبرهای جفت شده، ظاهر می گردد، ضروری است، زیرا سالیتون های گسسته از خنثی شدن پراش گسسته در این سیستم ها بوسیله عوامل غیرخطی بوجود می آیند. گسستگی سیستم عامل...
Fermionic Vector Model Solitons in the Large N Limit
The large N limit of fermionic vectors models is studied using bilocal variables, in the framework of a collective field theory approach. The large N configuration is determined completely using only classical solutions of the model. Further, the Bethe-Salpeter equations of the model are cast as a Green’s function problem. One of the main results of this work is to show that this Green’s functi...
متن کاملLarge N Limit of Higher Derivative Extended CP ( N ) Model
We construct a fourth-order derivative CP(N) model in 1 + 1 dimensions by incorporating the topological charge density squared term into the Lagrangian. We quantize the theory by reformulating with auxiliary fields and then performing the path integral explicitly. We discuss the renormalizability in the large N limit and relevance of the effective action with axion physics. PACS Number(s): 11.1...
متن کاملNonlinear Surface Superconductivity in the Large Κ Limit
in which Ψ is the (complex) superconducting order parameter, such that |Ψ| varies from |Ψ| = 0 (when the material is at a normal state) to |Ψ| = 1 (for the purely superconducting state). The magnetic vector potential is denoted by A (the magnetic field is then given by h = ∇×A), hex is the constant applied magnetic field, and κ is the Ginzburg–Landau parameter which is a material property. Supe...
متن کاملLarge N Limit on Langevin Equation : Two - Dimensional Nonlinear Sigma Model
1. Abstract We study the stochastic quantization of two-dimensional nonlinear sigma model in the large N limit. Our main tool is the effective Langevin equation with which we investigate nonperturbative phenomena and derive the results which are same as the path integral approach gives.
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Progress of Theoretical Physics
سال: 1982
ISSN: 0033-068X,1347-4081
DOI: 10.1143/ptp.68.2188