Quenched randomness at first-order transitions

نویسندگان

چکیده

برای دانلود رایگان متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Quenched Randomness at First-Order Transitions

A rigorous theorem due to Aizenman and Wehr asserts that there can be no latent heat in a two-dimensional system with quenched random impurities. We examine this result, and its possible extensions to higher dimensions, in the context of several models. For systems whose pure versions undergo a strong first-order transition, we show that there is an asymptotically exact mapping to the random fi...

متن کامل

Proof of rounding by quenched disorder of first order transitions in low- dimensional quantum systems

Related Articles Entropic uncertainty relations and the stabilizer formalism J. Math. Phys. 53, 012202 (2012) Spinor representation for loop quantum gravity J. Math. Phys. 53, 012503 (2012) Notes on the Riccati operator equation in open quantum systems J. Math. Phys. 53, 012106 (2012) Limitations on cloning in classical mechanics J. Math. Phys. 53, 012902 (2012) Composite parameterization and H...

متن کامل

Ivy on the Ceiling: First-order Polymer Depinning Transitions with Quenched Disorder

We consider a polymer, with monomer locations modeled by the trajectory of an underlying Markov chain, in the presence of a potential that interacts with the polymer when it visits a particular site 0. Disorder is introduced by having the interaction vary from one monomer to another, as a constant u plus i.i.d. mean-0 randomness. There is a critical value of u above which the polymer is pinned,...

متن کامل

Rounding of first order transitions in low-dimensional quantum systems with quenched disorder.

We prove that the addition of an arbitrarily small random perturbation to a quantum spin system rounds a first-order phase transition in the conjugate order parameter in d < or = 2 dimensions, or for cases involving the breaking of a continuous symmetry in d < or = 4. This establishes rigorously for quantum systems the existence of the Imry-Ma phenomenon which for classical systems was proven b...

متن کامل

Surface Critical Phenomena at First-order Phase Transitions

Frequently, first-order phase transitions in solids are characterized by the coexistence of a disordered phase and several ordered phases. Near such a transition, the disordered phase may appear in the surface region of the crystal even though the bulk crystal remains in one of its ordered states. This leads to several critical effects which are characterized by critical exponents. Recent exper...

متن کامل

ذخیره 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: Physica A: Statistical Mechanics and its Applications

سال: 1999

ISSN: 0378-4371

DOI: 10.1016/s0378-4371(98)00489-0