Green Function Monte Carlo with Stochastic Reconfiguration
نویسندگان
چکیده
منابع مشابه
Green Function Monte Carlo with Stochastic Reconfiguration
A new method for the stabilization of the sign problem in the Green Function Monte Carlo technique is proposed. The method is devised for real lattice Hamiltonians and is based on an iterative ”stochastic reconfiguration” scheme which introduces some bias but allows a stable simulation with constant sign. The systematic reduction of this bias is in principle possible. The method is applied to t...
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A recent technique, proposed to alleviate the “sign problem disease”, is discussed in details. As well known the ground state of a given Hamiltonian H can be obtained by applying the imaginary time propagator e−Hτ to a given trial state ψT for large imaginary time τ and sampling statistically the propagated state ψτ = e ψT . However the so called “sign problem” may appear in the simulation and ...
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ژورنال
عنوان ژورنال: Physical Review Letters
سال: 1998
ISSN: 0031-9007,1079-7114
DOI: 10.1103/physrevlett.80.4558