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10 papers · 1 filter
Mutual information and the F-theorem
Horacio Casini, Marina Huerta, Robert C. Myers +1
Mutual information is used as a purely geometrical regularization of entanglement entropy applicable to any QFT. A coefficient in the mutual information between concentric circular…
Direct probing of band-structure Berry phase in diluted magnetic semiconductors
M. Granada, D. Lucot, R. Giraud +4
We report on experimental evidence of the Berry phase accumulated by the charge carrier wave function in single-domain nanowires made from a (Ga,Mn)(As,P) diluted ferromagnetic sem…
High pressure investigation of superconducting signatures in CeCuSi : ac- magnetic susceptibility and heat capacity, resistivity and thermopower
Gaétan Giriat, Zhi Ren, Pablo Pedrazzini +1
Taking advantage of a novel multiprobe setup we have measured, on a unique sample, the ac-magnetic susceptibility, the resistivity, the ac-specific heat and the thermopower of the…
Impurities and electronic localization in graphene bilayers
H. P. Ojeda Collado, Gonzalo Usaj, C. A. Balseiro
We analyze the electronic properties of bilayer graphene with Bernal stacking and a low concentration of adatoms. Assuming that the host bilayer lies on top of a substrate, we cons…
Effects of spike-triggered negative feedback on receptive-field properties
Eugenio Urdapilleta, Inés Samengo
Sensory neurons are often described in terms of a receptive field, that is, a linear kernel through which stimuli are filtered before they are further processed. If information tra…
Derivative expansion for the electromagnetic and Neumann Casimir effects in dimensions with imperfect mirrors
C. D. Fosco, F. C. Lombardo, F. D. Mazzitelli
We calculate the Casimir interaction energy in spatial dimensions between two (zero-width) mirrors, one flat, and the other slightly curved, upon which {\em imperfect\/} cond…