Quantum Monte Carlo algorithm for nonlocal corrections to the dynamical mean-field approximation

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

Parallelized quantum Monte Carlo algorithm with nonlocal worm updates.

Based on the worm algorithm in the path-integral representation, we propose a general quantum Monte Carlo algorithm suitable for parallelizing on a distributed-memory computer by domain decomposition. Of particular importance is its application to large lattice systems of bosons and spins. A large number of worms are introduced and its population is controlled by a fictitious transverse field. ...

متن کامل

Quantum Monte Carlo study of strongly correlated electrons: Cellular dynamical mean-field theory

We study the Hubbard model using the cellular dynamical mean-field theory CDMFT with quantum Monte Carlo QMC simulations. We present the algorithmic details of CDMFT with the Hirsch-Fye QMC method for the solution of the self-consistently embedded quantum cluster problem. We use the oneand two-dimensional half filled Hubbard model to gauge the performance of CDMFT+QMC particularly for small clu...

متن کامل

Monte Carlo Methods for Quantum Field Theory

The intention of this paper is to review some recent and a few not-so-recent advances in Monte Carlo simulation algorithms for lattice field theory with particular regard to their applicability to full QCD computations including Ginsparg–Wilson quarks. The fundamental goals for the design of algorithms is the efficient and correct computation of quantities of physical interest; the mechanism fo...

متن کامل

Quantum algorithm for exact Monte Carlo sampling.

We build a quantum algorithm which uses the Grover quantum search procedure in order to sample the exact equilibrium distribution of a wide range of classical statistical mechanics systems. The algorithm is based on recently developed exact Monte Carlo sampling methods, and yields a polynomial gain compared to classical procedures.

متن کامل

Dynamical mean-field theory for quantum chemistry.

The dynamical mean-field concept of approximating an unsolvable many-body problem in terms of the solution of an auxiliary quantum impurity problem, introduced to study bulk materials with a continuous energy spectrum, is here extended to molecules, i.e., finite systems with a discrete energy spectrum. The application to small clusters of hydrogen atoms yields ground state energies which are co...

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 B

سال: 2001

ISSN: 0163-1829,1095-3795

DOI: 10.1103/physrevb.64.195130