Nuclear pairing within a configuration-space Monte Carlo approach

Lingle, Mark; Volya, Alexander

doi:10.1103/PhysRevC.91.064304

Title: Nuclear pairing within a configuration-space Monte Carlo approach

Full Record
Other Related Research

Authors:: Lingle, Mark; Volya, Alexander

Publication Date:: Mon Jun 08 00:00:00 EDT 2015

Sponsoring Org.:: USDOE

OSTI Identifier:: 1184058

Grant/Contract Number:: SC0009883

Resource Type:: Publisher's Accepted Manuscript

Journal Name:: Physical Review C

Additional Journal Information:: Journal Volume: 91; Journal Issue: 6; Journal ID: ISSN 0556-2813

Publisher:: American Physical Society

Country of Publication:: United States

Language:: English

Citation Formats


                    Lingle, Mark, and Volya, Alexander. Nuclear pairing within a configuration-space Monte Carlo approach.  United States: N. p., 2015. 
Web.  doi:10.1103/PhysRevC.91.064304.

Copy to clipboard


                    Lingle, Mark, & Volya, Alexander. Nuclear pairing within a configuration-space Monte Carlo approach.  United States.  https://doi.org/10.1103/PhysRevC.91.064304

Copy to clipboard


                    Lingle, Mark, and Volya, Alexander. Mon .  
"Nuclear pairing within a configuration-space Monte Carlo approach".  United States.  https://doi.org/10.1103/PhysRevC.91.064304.

Copy to clipboard


                    
@article{osti_1184058,

  title        = {Nuclear pairing within a configuration-space Monte Carlo approach},

  author       = {Lingle, Mark and Volya, Alexander},

  abstractNote = {},

  doi          = {10.1103/PhysRevC.91.064304},

  journal      = {Physical Review C},

  number       = 6,

  volume       = 91,

  place        = {United States},

  year         = {Mon Jun 08 00:00:00 EDT 2015},

  month        = {Mon Jun 08 00:00:00 EDT 2015}

}

Copy to clipboard

Journal Article:

Free Publicly Available Full Text

Accepted Manuscript (Publisher)

Publisher's Version of Record
https://doi.org/10.1103/PhysRevC.91.064304

Other availability

Search WorldCat to find libraries that may hold this journal

Citation Metrics:

Cited by: 6 works

Citation information provided by
Web of Science

Save / Share:

Export Metadata

Save to My Library

Similar Records in DOE PAGES and OSTI.GOV collections:

Using full configuration interaction quantum Monte Carlo in a seniority zero space to investigate the correlation energy equivalence of pair coupled cluster doubles and doubly occupied configuration interaction

Journal Article Shepherd, James J., E-mail: jamesjshepherd@gmail.com ; Henderson, Thomas M. ; Scuseria, Gustavo E. - Journal of Chemical Physics

Over the past few years, pair coupled cluster doubles (pCCD) has shown promise for the description of strong correlation. This promise is related to its apparent ability to match results from doubly occupied configuration interaction (DOCI), even though the latter method has exponential computational cost. Here, by modifying the full configuration interaction quantum Monte Carlo algorithm to sample only the seniority zero sector of Hilbert space, we show that the DOCI and pCCD energies are in agreement for a variety of 2D Hubbard models, including for systems well out of reach for conventional configuration interaction algorithms. Our calculations are aidedmore »« less
https://doi.org/10.1063/1.4942770
Using full configuration interaction quantum Monte Carlo in a seniority zero space to investigate the correlation energy equivalence of pair coupled cluster doubles and doubly occupied configuration interaction

Journal Article Shepherd, James J. ; Henderson, Thomas M. ; Scuseria, Gustavo E. - Journal of Chemical Physics

Over the past few years, pair coupled cluster doubles (pCCD) has shown promise for the description of strong correlation. This promise is related to its apparent ability to match results from doubly occupied configuration interaction (DOCI), even though the latter method has exponential computational cost. In this paper, by modifying the full configuration interaction quantum Monte Carlo algorithm to sample only the seniority zero sector of Hilbert space, we show that the DOCI and pCCD energies are in agreement for a variety of 2D Hubbard models, including for systems well out of reach for conventional configuration interaction algorithms. Our calculationsmore »« less
Cited by 23
https://doi.org/10.1063/1.4942770

Full Text Available
An excited-state approach within full configuration interaction quantum Monte Carlo

Journal Article Blunt, N. S., E-mail: nicksblunt@gmail.com ; Smart, Simon D. ; Booth, George H. ; ... - Journal of Chemical Physics

We present a new approach to calculate excited states with the full configuration interaction quantum Monte Carlo (FCIQMC) method. The approach uses a Gram-Schmidt procedure, instantaneously applied to the stochastically evolving distributions of walkers, to orthogonalize higher energy states against lower energy ones. It can thus be used to study several of the lowest-energy states of a system within the same symmetry. This additional step is particularly simple and computationally inexpensive, requiring only a small change to the underlying FCIQMC algorithm. No trial wave functions or partitioning of the space is needed. The approach should allow excited states to bemore »« less
https://doi.org/10.1063/1.4932595
Worm algorithm and diagrammatic Monte Carlo: A new approach to continuous-space path integral Monte Carlo simulations

Journal Article Boninsegni, M ; Prokof'ev, N V ; BEC-INFM, Dipartimento di Fisica, Universita di Trento, Via Sommarive 14, I-38050 Povo ; ... - Physical Review. E, Statistical Physics, Plasmas, Fluids, and Related Interdisciplinary Topics

A detailed description is provided of a new worm algorithm, enabling the accurate computation of thermodynamic properties of quantum many-body systems in continuous space, at finite temperature. The algorithm is formulated within the general path integral Monte Carlo (PIMC) scheme, but also allows one to perform quantum simulations in the grand canonical ensemble, as well as to compute off-diagonal imaginary-time correlation functions, such as the Matsubara Green function, simultaneously with diagonal observables. Another important innovation consists of the expansion of the attractive part of the pairwise potential energy into elementary (diagrammatic) contributions, which are then statistically sampled. This affords amore »« less
https://doi.org/10.1103/PHYSREVE.74.036701
Quantum Monte Carlo calculations in configuration space with three-nucleon forces

Journal Article Arthuis, Pierre ; Barbieri, Carlo ; Pederiva, Francesco ; ... - Physical Review. C

Neutron matter, through its connection to neutron stars as well as systems like cold atom gases, is one of the most interesting yet computationally accessible systems in nuclear physics. The Configuration-Interaction Monte Carlo (CIMC) method is a stochastic many-body technique allowing to tackle strongly coupled systems. In contrast to other Quantum Monte Carlo methods employed in nuclear physics, the CIMC method can be formulated directly in momentum space allowing for an efficient use of non-local interactions. In this work we extend CIMC method to include three-nucleon interactions through the normal-ordered two-body approximation. Here, we present results for the equation ofmore »« less
https://doi.org/10.1103/physrevc.107.044303

Full Text Available

Similar Records