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25 papers · 1 filter
Graph theory and Pfaffian representations of Ising partition function
Thierry Gobron
A well known theorem due to Kasteleyn states that the partition function of an Ising model on an arbitrary planar graph can be represented as the Pfaffian of a skew-symmetric matri…
Observation of a quantum Cheshire Cat in a matter wave interferometer experiment
Tobias Denkmayr, Hermann Geppert, Stephan Sponar +4
From its very beginning quantum theory has been revealing extraordinary and counter-intuitive phenomena, such as wave-particle duality, Schrödinger cats and quantum non-locality. I…
Electronic structure and transport in approximants of the Penrose tiling
Guy Trambly de Laissardière, Attila Szállás, Didier Mayou
We present numerical calculations of electronic structure and transport in Penrose approximants. The electronic structure of perfect approximants shows a spiky density of states an…
Conductivity of Graphene with Resonant Adsorbates: Beyond the Nearest Neighbor Hopping Model
Guy Trambly de Laissardière, Didier Mayou
Adsorbates on graphene can create resonances that lead to efficient electron scattering and strongly affect the electronic conductivity. Therefore a proper description of these res…
On the emergence of an "intention field" for socially cohesive agents
Jean-Philippe Bouchaud, Christian Borghesi, Pablo Jensen
We argue that when a social convergence mechanism exists and is strong enough, one should expect the emergence of a well defined "field", i.e. a slowly evolving, local quantity aro…
On the form factors of local operators in the Bazhanov-Stroganov and chiral Potts models
N. Grosjean, J. M. Maillet, G. Niccoli
We consider general cyclic representations of the 6-vertex Yang-Baxter algebra and analyze the associated quantum integrable systems, the Bazhanov-Stroganov model and the correspon…