Sparse sampling and tensor network representation of two-particle Green's functions
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F20%3A00534736" target="_blank" >RIV/68378271:_____/20:00534736 - isvavai.cz</a>
Alternative codes found
RIV/00216224:14310/20:00114507
Result on the web
<a href="http://hdl.handle.net/11104/0312915" target="_blank" >http://hdl.handle.net/11104/0312915</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.21468/SciPostPhys.8.1.012" target="_blank" >10.21468/SciPostPhys.8.1.012</a>
Alternative languages
Result language
angličtina
Original language name
Sparse sampling and tensor network representation of two-particle Green's functions
Original language description
Many-body calculations at the two-particle level require a compact representation of two-particle Green's functions. In this paper, we introduce a sparse sampling scheme in the Matsubara frequency domain as well as a tensor network representation for two-particle Green's functions. The sparse sampling is based on the intermediate representation basis and allows an accurate extraction of the generalized susceptibility from a reduced set of Matsubara frequencies. The tensor network representation provides a system independent way to compress the information carried by two-particle Green's functions. We demonstrate efficiency of the present scheme for calculations of static and dynamic susceptibilities in single- and two-band Hubbard models in the framework of dynamical mean-field theory.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10302 - Condensed matter physics (including formerly solid state physics, supercond.)
Result continuities
Project
<a href="/en/project/GA19-16937S" target="_blank" >GA19-16937S: Frustrated and non-frustrated soft-spin systems in relativistic Mott insulators</a><br>
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2020
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
SciPost Physics
ISSN
2542-4653
e-ISSN
—
Volume of the periodical
8
Issue of the periodical within the volume
1
Country of publishing house
NL - THE KINGDOM OF THE NETHERLANDS
Number of pages
23
Pages from-to
1-23
UT code for WoS article
000512377100012
EID of the result in the Scopus database
2-s2.0-85087353200