Advanced density matrix renormalization group method for nuclear structure calculations
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388955%3A_____%2F15%3A00451462" target="_blank" >RIV/61388955:_____/15:00451462 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.1103/PhysRevC.92.051303" target="_blank" >http://dx.doi.org/10.1103/PhysRevC.92.051303</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1103/PhysRevC.92.051303" target="_blank" >10.1103/PhysRevC.92.051303</a>
Alternative languages
Result language
angličtina
Original language name
Advanced density matrix renormalization group method for nuclear structure calculations
Original language description
We present an efficient implementation of the Density Matrix Renormalization Group (DMRG) algorithm that includes an optimal ordering of the proton and neutron orbitals and an efficient expansion of the active space utilizing various concepts of quantuminformation theory. We first show how this new DMRG methodology could solve a previous 400 keV discrepancy in the ground state energy of 56Ni. We then report the first DMRG results in the pf + g9/2 shell model space for the ground 0+ and first 2+ statesof 64Ge which are benchmarked with reference data obtained from a Monte Carlo shell model. The corresponding correlation structure among the proton and neutron orbitals is determined in terms of two-orbital mutual information. Based on such correlation graphs we propose several further algorithmic improvement possibilities that can be utilized in a new generation of tensor network based algorithms.
Czech name
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Czech description
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Classification
Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
CF - Physical chemistry and theoretical chemistry
OECD FORD branch
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Result continuities
Project
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Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2015
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Physical Review. C
ISSN
0556-2813
e-ISSN
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Volume of the periodical
92
Issue of the periodical within the volume
5
Country of publishing house
US - UNITED STATES
Number of pages
5
Pages from-to
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UT code for WoS article
000364409600002
EID of the result in the Scopus database
2-s2.0-84947273131