Asymptotic phase diagrams for lattice spin systems
نویسندگان
چکیده
منابع مشابه
Low-Temperature Phase Diagrams of Quantum Lattice
We use the low-temperature expansion and the extension of Pirogov-Sinai theory developed in [1], and the perturbation theory of [2] to describe the phase diagrams of two families of fermionic lattice systems at low-temperature: the balanced model and a variant of the t−J model.
متن کاملA projection method for lattice spin systems
Arizona Center for Mathematical Studies, University of Arizona Tucson, Arizona 85721 Institute of Physics, Slovak Academy of Sciences, 84228 Bratislava, Slovak Republic Supercomputer Computations Research Institute, Florida State University, Tallahassee, Florida 32306-4130 Center for Materials Research and Technology, Department of Physics, Florida State University, Tallahassee, Florida 32306-4350
متن کاملPhase Diagrams for Systems Containing Hyperbranched Polymers
Hyperbranched polymers show an outstanding potential for applications ranging from chemistry over nanotechnology to pharmacy. In order to take advantage of this potential, the underlying phase behaviour must be known. From the thermodynamic point of view, the modelling of these phase diagrams is quite challenging, because the thermodynamic properties depend on the architecture of the hyperbranc...
متن کاملSpontaneous Magnetization and Phase Diagrams of the Mixed Spin-1/2 and Spin-S Ising Model on the Bethe Lattice
The effect of uniaxial single-ion anisotropy on magnetic and critical properties of the mixed spin-1/2 and spinS (S > 1/2) Ising model on a three-coordinated Bethe lattice is rigorously examined with the help of star-triangle transformation and exact recursion relations. In particular, our attention is focused on the ferrimagnetic version of the model, which exhibits diverse temperature depende...
متن کاملLow Temperature Phase Diagrams for Quantum Perturbations of Classical Spin Systems
We consider a quantum spin system with Hamiltonian H = H + λV, where H(0) is diagonal in a basis |s⟩ = ⊗ x |sx⟩ which may be labeled by the configurations s = {sx} of a suitable classical spin system on Zd, H |s⟩ = H(s) |s⟩. We assume that H(0)(s) is a finite range Hamiltonian with finitely many ground states and a suitable Peierls condition for excitations, while V is a finite range or exponen...
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 Physics A: Mathematical and General
سال: 1986
ISSN: 0305-4470,1361-6447
DOI: 10.1088/0305-4470/19/15/033