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@PROCEEDINGS{Pavarini:864818,
key = {864818},
editor = {Pavarini, Eva and Koch, Erik and Zhang, Schiwei},
title = {{M}any-{B}ody {M}ethods for {R}eal {M}aterials},
volume = {9},
address = {Jülich},
publisher = {Forschungszentrum Jülich GmbH Zentralbibliothek, Verlag},
reportid = {FZJ-2019-04474},
isbn = {978-3-95806-400-3},
series = {Schriften des Forschungszentrums Jülich. Modeling and
Simulation},
pages = {getr. Zählung},
year = {2019},
abstract = {Emergent many-body phenomena are at the core of the
exciting properties of strongly-correlated materials.
Understanding them requires confronting the many-body
problem. While, at first, this appears to be an impossible
task, substantial progress has been made by combining
physical insights with modern numerical approaches. A
successful strategy is to devise methods that use the
understanding gained from simple models for the construction
of physically motivated wave-functions. Results for the
ground state of real materials can then be obtained by
optimizing them via deterministic or stochastic algorithms.
The methods of choice for determining spectra are instead
based on Green functions. The key idea is to map the complex
realistic many-body Hamiltonian to a simpler auxiliary model
that can be solved numerically. This year’s school will
provide an overview of the state-of-the art of these
techniques, their successes and their limitations. After
introducing fundamental models and key concepts, lectures
will focus on quantum Monte Carlo for optimizing correlated
wave-functions, stochastically sampling series expansions
for obtaining Green functions, and renormalization group
techniques. Advanced lectures will address approaches to
Mott physics, transport phenomena, and out-of-equilibrium
dynamics. Applications will cover correlated systems ranging
from transition-metal compounds and frustrated spin systems
to correlated molecules. The goal of the school is to
introduce advanced graduate students and up to these modern
approaches for the realistic modeling of strongly-correlated
materials. A school of this size and scope requires support
and help from many sources. We are very grateful for all the
financial and practical support we have received. The
Institute for Advanced Simulation at the Forschungszentrum
Jülich and the Jülich Supercomputer Centre provided the
major part of the funding and were vital for the
organization of the school and the production of this book.
The Institute for Complex Adaptive Matter (ICAM) supported
selected international speakers and participants. The nature
of a school makes it desirable to have the lecture notes
available when the lectures are given. This way students get
the chance to work through the lectures thoroughly while
their memory is still fresh. We are therefore extremely
grateful to the lecturers that, despite tight deadlines,
provided their manuscripts in time for the production of
this book. We are confident that the lecture notes collected
here will not only serve the participants of the school but
will also be useful for other students entering the exciting
field of strongly correlated materials. We are grateful to
Mrs. H. Lexis of the Verlag des Forschungszentrum Jülich
and to Mrs. D. Mans of the Grafische Betriebe for providing
their expert support in producing the present volume on a
tight schedule. We heartily thank our students and postdocs
who helped with proofreading the manuscripts, often on quite
short notice: Julian Mußhoff, Neda Samani, Qian Zhang, and
Xue-Jing Zhang. Finally, our special thanks go to Dipl.-Ing.
R. Hölzle for his invaluable advice on the innumerable
questions concerning the organization of such an endeavor,
and to Mrs. L. Snyders for expertly handling all practical
issues.},
month = {Sep},
date = {2019-09-16},
organization = {Autumn School on Correlated Electrons,
Jülich (Germany), 16 Sep 2019 - 20 Sep
2019},
cin = {JSC / IAS-3},
cid = {I:(DE-Juel1)JSC-20090406 / I:(DE-Juel1)IAS-3-20090406},
pnm = {511 - Computational Science and Mathematical Methods
(POF3-511) / 6212 - Quantum Condensed Matter: Magnetism,
Superconductivity (POF3-621) / 144 - Controlling Collective
States (POF3-144)},
pid = {G:(DE-HGF)POF3-511 / G:(DE-HGF)POF3-6212 /
G:(DE-HGF)POF3-144},
typ = {PUB:(DE-HGF)3 / PUB:(DE-HGF)26},
url = {https://juser.fz-juelich.de/record/864818},
}