Critical analysis of two-dimensional classical XY model
نویسندگان
چکیده
منابع مشابه
Phase Transition in the Two Dimensional Classical XY Model
For the two dimensional classical XY model we present extensive high temperature -phase bulk data extracted based on a novel finite size scaling (FSS) Monte Carlo technique, along with FSS data near criticality. Our data verify that η = 1/4 sets in near criticality, and clarify the nature of correction to the leading scaling behavior. However, the result of standard FSS analysis near criticalit...
متن کاملcritical discourse analysis of two political speeches in light of bakhtins dialogism
چکیده گفتگوگری باختین نظریه ای است که به تفاوت ها احترام گذاشته و گفتگو را ارج می نهد. رشته های مختلف علوم انسانی همواره از این نظریه بهره جسته اند. با وجود این تنها مطالعات اندکی در زمینه تجزیه و تحلیل نقادانه کلام به نظریه گفتگوگری پرداخته اند. پنداشت تحقیق حاضر بر آن است که احترام به حقوق دیگران از طریق فراهم آوردن شرایط یکسان برای بیان نظریات مختلف یکی از مهمترین مشترکات تحلیل انتقادی گفتم...
15 صفحه اولBreakdown of scaling in the nonequilibrium critical dynamics of the two-dimensional XY model
The approach to equilibrium, from a nonequilibrium initial state, in a system at its critical point is usually described by a scaling theory with a single growing length scale, xi(t) approximately t(1/z), where z is the dynamic exponent that governs the equilibrium dynamics. We show that, for the 2D XY model, the rate of approach to equilibrium depends on the initial condition. In particular, x...
متن کاملBulk and surface properties in the critical phase of the two-dimensional XY model
Monte Carlo simulations of the two-dimensional XY model are performed in a square geometry with various boundary conditions (BC). Using conformal mappings we deduce the exponent ησ(T ) of the order parameter correlation function and its surface analogue η‖(T ) as a function of the temperature in the critical (low-temperature) phase of the model. The temperature dependence of both exponents is o...
متن کاملUsing inhomogeneity to raise the superconducting critical temperature in a two-dimensional XY model
Superconductors with low superfluid density are often dominated by phase fluctuations of the order parameter. In this regime, their physics may be described by XY models. The transition temperature Tc of such models is of the same order as the zero-temperature phase stiffness helicity modulus , a long-wavelength property of the system: Tc=A 0 . However, the constant A is a nonuniversal number, ...
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: Journal of Statistical Mechanics: Theory and Experiment
سال: 2020
ISSN: 1742-5468
DOI: 10.1088/1742-5468/aba686