منابع مشابه
Extended Phase Diagram of the Lorenz Model
The parameter dependence of the various attractive solutions of the three variable nonlinear Lorenz model equations for thermal convection in Rayleigh-Bénard flow is studied. Its bifurcation structure has commonly been investigated as a function of r, the normalized Rayleigh number, at fixed Prandtl number σ. The present work extends the analysis to the entire (r, σ) parameter plane. An onion l...
متن کاملPhase diagram of the extended Hubbard model at weak coupling.
The Hubbard model including nearest neighbor interaction is studied at T50 on a d-dimensional hypercubic lattice (d@1) close to half filling. For the model in d5` we derive the exact result that the ground state at weak coupling is phase separated. Results for lower dimensions are then derived in a 1/d expansion. To obtain these results we first consider possible second order transitions. One t...
متن کاملExtended phase diagram of the three-dimensional phase field crystal model.
We determine the phase diagram of the phase field crystal model in three dimensions by using numerical free energy minimization methods. Previously published results, based on single mode approximations, have indicated that in addition to the uniform (liquid) phase, there would be regions of stability of body-centered cubic, hexagonal and stripe phases. We find that in addition to these, there ...
متن کاملPhase Diagram of the Dissipative Hofstadter Model
A quantum particle moving in a uniform magnetic field and periodic potential (the Hofstadter model) has an energy band structure which varies in a discontinuous fashion as a function of the magnetic flux per lattice unit cell. In a real system, randomness of various kinds should “smooth out” this behavior in some way. To explore how this happens, we have studied the dissipative quantum mechanic...
متن کاملPhase diagram and Fermi liquid properties of the extended Hubbard model on the honeycomb lattice
The Hubbard and extended Hubbard models on the honeycomb lattice can be seen as prototype models of a single-layer graphene placed in a high dielectric constant environment that screens the Coulomb interaction. Taking advantage of the absence of a sign problem at half-filling, we study this problem with clusters up to 96 sites with the determinant quantum Monte Carlo method as an impurity solve...
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: International Journal of Bifurcation and Chaos
سال: 2007
ISSN: 0218-1274,1793-6551
DOI: 10.1142/s021812740701883x