Zobrazeno 1 - 10
of 419
pro vyhledávání: '"Werner Daniel"'
Publikováno v:
Phys. Rev. B 109, 235134 (2024)
We investigate the photocurrent and spectral features in a simplified model of a Mott photovoltaic system consisting of a multilayered insulating heterostructure. The central correlated region is coupled to two metallic leads kept at different chemic
Externí odkaz:
http://arxiv.org/abs/2404.01729
Autor:
Künzel, Fabian, Erpenbeck, André, Werner, Daniel, Arrigoni, Enrico, Gull, Emanuel, Cohen, Guy, Eckstein, Martin
A description of long-lived photo-doped states in Mott insulators is challenging, as it needs to address exponentially separated timescales. We demonstrate how properties of such states can be computed using numerically exact steady state techniques,
Externí odkaz:
http://arxiv.org/abs/2311.13933
We characterize the current-carrying nonequilibrium steady-state in a single-band Hubbard model confronted with a static electric field in the presence of quenched disorder. As disorder is not expected to dissipate the extra energy injected by the fi
Externí odkaz:
http://arxiv.org/abs/2310.11833
We characterize the response of a Mott insulating system to a static electric field in terms of its conducting and spectral properties. Dissipation is included by a coupling to fermionic baths and to either optical or acoustic phonons. This paper ext
Externí odkaz:
http://arxiv.org/abs/2212.14352
We determine the chromatic number of the Kneser graph q{\Gamma}_{7,{3,4}} of flags of vectorial type {3, 4} of a rank 7 vector space over the finite field GF(q) for large q and describe the colorings that attain the bound. This result relies heavily,
Externí odkaz:
http://arxiv.org/abs/2205.02632
We determine the chromatic number of some graphs of flags in buildings of type $A_4$, namely of the Kneser graphs of flags of type $\{2,4\}$ in the vector spaces $GF(q)^5$ for $q\geq3$, and of the Kneser graph of flags of type $\{2,3\}$ in the vector
Externí odkaz:
http://arxiv.org/abs/2005.05762
Autor:
Metsch, Klaus, Werner, Daniel
Publikováno v:
Innov. Incidence Geom. 18 (2020) 39-55
For $q>27$ we determine the independence number $\alpha(\Gamma)$ of the Kneser graph $\Gamma$ on plane-solid flags in $PG(6,q)$. More precisely we describe all maximal independent sets of size at least $q^{11}$ and show that every other maximal examp
Externí odkaz:
http://arxiv.org/abs/1904.08656