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42 papers · 1 filter
Analogue gravitational lensing in optical Bose-Einstein condensates
Decheng Ma, Chenglong Jia, Enrique Solano +1
We consider acoustic propagation of phonons in the presence of a non-rotating vortex with radial flow in a Bose-Einstein condensate (BEC) of photons. Since the vortex can be used t…
Sliding mode on tangential sets of Filippov systems
Tiago Carvalho, Douglas D. Novaes, Durval J. Tonon
We consider piecewise smooth vector fields defined in where both vector fields are tangent to the switching manifold along a submanifold $M\subset…
Finite-range effects in the unitary Fermi polaron
Renato Pessoa, S. A. Vitiello, L. A. Peña Ardila
Quantum Monte Carlo techniques are employed to study the properties of polarons in an ultracold Fermi gas, at and in the unitary regime using both a zero-range model and a…
Intermolecular Correlations and Mean Square Relative Displacements in C60 Fullerite
Viatcheslav Ivanovich Zubov, Clóves Gonçalves Rodrigues
We study molecular properties of the high-temperature modification of fullerites. In the present work we calculate the intermolecular correlations and the mean square relative disp…
A stretched exponential-based approach for the magnetic properties of spin glasses
Leandro Bufaiçal
The spin glasses show intriguing characteristic features that are not well understood yet, as for instance its aging, rejuvenation and memory effects. Here a model based on a stret…
Stochastic rumors on random trees
Valdivino V. Junior, Pablo M. Rodriguez, Adalto Speroto
The Maki-Thompson rumor model is defined by assuming that a population represented by a graph is subdivided into three classes of individuals; namely, ignorants, spreaders and stif…