Zobrazeno 1 - 10
of 136
pro vyhledávání: '"Jan von Delft"'
Autor:
Xiaoyu Deng, Katharina M. Stadler, Kristjan Haule, Seung-Sup B. Lee, Andreas Weichselbaum, Jan von Delft, Gabriel Kotliar
Publikováno v:
Nature Communications, Vol 14, Iss 1, Pp 1-1 (2023)
Externí odkaz:
https://doaj.org/article/31a19abf0c8f4cf39935600694cc32b4
Autor:
Xiaoyu Deng, Katharina M. Stadler, Kristjan Haule, Seung-Sup B. Lee, Andreas Weichselbaum, Jan von Delft, Gabriel Kotliar
Publikováno v:
Nature Communications, Vol 12, Iss 1, Pp 1-3 (2021)
Externí odkaz:
https://doaj.org/article/1696af5dfdf54b5ca045a01cd83c7d89
Autor:
Xiaoyu Deng, Katharina M. Stadler, Kristjan Haule, Andreas Weichselbaum, Jan von Delft, Gabriel Kotliar
Publikováno v:
Nature Communications, Vol 10, Iss 1, Pp 1-10 (2019)
Strong correlation effects in metals lead to unconventional emergent behavior that depends on the nature of interactions at the microscopic scale. Deng et al. identify distinct signatures of the so-called Mott and Hund regimes, which may guide the th
Externí odkaz:
https://doaj.org/article/4396799500224d6f96487de4805c540b
Autor:
Patrick Chalupa-Gantner, Fabian B. Kugler, Cornelia Hille, Jan von Delft, Sabine Andergassen, Alessandro Toschi
Publikováno v:
Physical Review Research, Vol 4, Iss 2, p 023050 (2022)
We investigate several fundamental characteristics of the multiloop functional renormalization group (mfRG) flow by hands of its application to a prototypical many-electron system: the Anderson impurity model (AIM). We first analyze the convergence o
Externí odkaz:
https://doaj.org/article/c9f88fa850ed49b4bf97d6d86a608a88
Publikováno v:
Physical Review X, Vol 11, Iss 4, p 041007 (2021)
Local three- and four-point correlators yield important insight into strongly correlated systems and have many applications. However, the nonperturbative, accurate computation of multipoint correlators is challenging, particularly in the real-frequen
Externí odkaz:
https://doaj.org/article/a064bec4c6de444f97a25d3ae75fd07e
Publikováno v:
Physical Review X, Vol 11, Iss 4, p 041006 (2021)
The many-body problem is usually approached from one of two perspectives: the first originates from an action and is based on Feynman diagrams, the second is centered around a Hamiltonian and deals with quantum states and operators. The connection be
Externí odkaz:
https://doaj.org/article/75b9162a87a5449894f4bc6b9387aadc
Publikováno v:
Physical Review Research, Vol 2, Iss 4, p 043052 (2020)
The accurate characterization of nonequilibrium strongly correlated quantum systems has been a longstanding challenge in many-body physics. Notable among them are quantum impurity models, which appear in various nanoelectronic and quantum computing a
Externí odkaz:
https://doaj.org/article/f455f4c45cb74edc8269205a4e141063
Autor:
Xiaoyu Deng, Katharina M. Stadler, Kristjan Haule, Andreas Weichselbaum, Jan von Delft, Gabriel Kotliar
Publikováno v:
Nature Communications, Vol 11, Iss 1, Pp 1-1 (2020)
An amendment to this paper has been published and can be accessed via a link at the top of the paper.
Externí odkaz:
https://doaj.org/article/2188a956d7e740aa8b5d146bee284811
Autor:
Fabian B Kugler, Jan von Delft
Publikováno v:
New Journal of Physics, Vol 21, Iss 9, p 099601 (2019)
Externí odkaz:
https://doaj.org/article/086abbad9e844f15b86b278a316a3e0a
Autor:
Fabian B Kugler, Jan von Delft
Publikováno v:
New Journal of Physics, Vol 20, Iss 12, p 123029 (2018)
We exploit the parquet formalism to derive exact flow equations for the two-particle-reducible four-point vertices, the self-energy, and typical response functions, circumventing the reliance on higher-point vertices. This includes a concise, algebra
Externí odkaz:
https://doaj.org/article/7a001854a08149d3b9a6abb88c3a52ec