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6 papers · 1 filter
Dynamic scaling in natural swarms
A. Cavagna, D. Conti, C. Creato +6
Collective behaviour in biological systems pitches us against theoretical challenges way beyond the borders of ordinary statistical physics. The lack of concepts like scaling and r…
The evolution of white dwarfs resulting from helium-enhanced, low-metallicity progenitor stars
Leandro G. Althaus, Francisco C. De Gerónimo, Alejandro H. Córsico +2
Some globular clusters host multiple stellar populations with different chemical abundance patterns. This is particularly true for Centauri, which shows clear evidence of a hel…
Classical and \textcolor{blue}{Quantum} Field-Theoretical approach to the non-linear q-Klein-Gordon Equation
A. Plastino, M. C. Rocca
\color{blue}{In the wake of efforts made in [EPL {\bf 97}, 41001 (2012)] and [J. Math. Phys. {\bf 54}, 103302 (2913)], we extend them here by developing the conventional Lagrangian…
Pulsations powered by hydrogen shell burning in white dwarfs
María E. Camisassa, Alejandro H. Córsico, Leandro G. Althaus +1
In the absence of a third dredge-up episode during the asymptotic giant branch phase, white dwarf models evolved from low-metallicity progenitors have a thick hydrogen envelope, wh…
Spatio-temporal correlations in models of collective motion ruled by different dynamical laws
Andrea Cavagna, Daniele Conti, Irene Giardina +3
Information transfer is an essential factor in determining the robustness of collective behaviour in biological systems with distributed control. The most direct way to study the i…
Improved power-series method for confined one-dimensional quantum-mechanical problems
Francisco M. Fernández
We propose two improvements to the well-known power series method for confined one-dimensional quantum-mechanical problems. They consist of the addition of a variational step were…