Dynamical Mean Field Solution of the Bose-Hubbard Model

نویسندگان
چکیده

برای دانلود باید عضویت طلایی داشته باشید

برای دانلود 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

Dynamical mean field solution of the Bose-Hubbard model.

We present the effective action and self-consistency equations for the bosonic dynamical mean field approximation to the bosonic Hubbard model and show that it provides remarkably accurate phase diagrams and correlation functions. To solve the bosonic dynamical mean field equations, we use a continuous-time Monte Carlo method for bosonic impurity models based on a diagrammatic expansion in the ...

متن کامل

Stochastic mean-field theory for the disordered Bose-Hubbard model

We investigate the effect of diagonal disorder on bosons in an optical lattice described by an Anderson-Hubbard model at zero temperature. It is known that within Gutzwiller mean-field theory spatially resolved calculations suffer particularly from finite system sizes in the disordered case, while arithmetic averaging of the order parameter cannot describe the Bose glass phase for finite hoppin...

متن کامل

Mean-field dynamics of a non-Hermitian Bose-Hubbard dimer.

We investigate an N-particle Bose-Hubbard dimer with an additional effective decay term in one of the sites. A mean-field approximation for this non-Hermitian many-particle system is derived, based on a coherent state approximation. The resulting nonlinear, non-Hermitian two-level dynamics, in particular, the fixed point structures showing characteristic modifications of the self-trapping trans...

متن کامل

Beyond mean-field dynamics in open Bose-Hubbard chains

D. Witthaut,1,* F. Trimborn,2 H. Hennig,1 G. Kordas,3 T. Geisel,1 and S. Wimberger3 1Max Planck Institute for Dynamics and Self-Organization, D-37073 Göttingen, Germany 2Institut für Theoretische Physik, Leibniz Universität Hannover, D-30167 Hannover, Germany 3Institut für Theoretische Physik and Center for Quantum Dynamics, Universität Heidelberg, D-69120 Heidelberg, Germany (Received 23 June ...

متن کامل

Solution of the Bose-Hubbard model using doorway states

– We introduce an efficient method to solve the Bose-Hubbard model. The Schrödinger equation is solved by the successive construction of doorway states. The ground state wavefunction derived by this method contains all relevant many-body correlations introduced by the hamiltonian, but the dimensionality of the Hilbert space is greatly reduced. We apply the doorway method to obtain the chemical ...

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: Physical Review Letters

سال: 2010

ISSN: 0031-9007,1079-7114

DOI: 10.1103/physrevlett.105.096402