Block-spin distributions for short-range attractive ising models
نویسندگان
چکیده
منابع مشابه
Short-range Ising Spin Glass: Multifractal Properties
The multifractal properties of the Edwards-Anderson order parameter of the short-range Ising spin glass model on d = 3 diamond hierarchical lattices is studied via an exact recursion procedure. The profiles of the local order parameter are calculated and analysed within a range of temperatures close to the critical point with four symmetric distributions of the coupling constants (Gaussian, Bim...
متن کاملShort Range Ising Spin Glasses: a critical exponent study
The critical properties of short-range Ising spin-glass models, defined on a diamond hierarchical lattice of graph fractal dimension df = 2.58, 3, and 4, and scaling factor 2 are studied via a method based on the Migdal-Kadanoff renormalization-group scheme. The order parameter critical exponent β is directly estimated from the data of the local Edwards-Anderson (EA) order parameter, obtained t...
متن کاملGeneric replica symmetric field-theory for short range Ising spin glasses
Symmetry considerations and a direct, Hubbard-Stratonovich type, derivation are used to construct a replica field-theory relevant to the study of the spin glass transition of short range models in a magnetic field. A mean-field treatment reveals that two different types of transitions exist, whenever the replica number n is kept larger than zero. The Sherrington-Kirkpatrick critical point in ze...
متن کاملIsing models with long-range antiferromagnetic and short-range ferromagnetic interactions
We study the ground state of a d–dimensional Ising model with both long range (dipole–like) and nearest neighbor ferromagnetic (FM) interactions. The long range interaction is equal to r−p, p > d, while the FM interaction has strength J . If p > d+1 and J is large enough the ground state is FM, while if d < p ≤ d + 1 the FM state is not the ground state for any choice of J . In d = 1 we show th...
متن کاملShort-range Ising spin glasses: the metastate interpretation of replica symmetry breaking.
Parisi's formal replica-symmetry-breaking (RSB) scheme for mean-field spin glasses has long been interpreted in terms of many pure states organized ultrametrically. However, the early version of this interpretation, as applied to the short-range Edwards-Anderson model, runs into problems because as shown by Newman and Stein (NS) it does not allow for chaotic size dependence, and predicts non-se...
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: Il Nuovo Cimento B Series 11
سال: 1975
ISSN: 1826-9877
DOI: 10.1007/bf02737692