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35 papers · 1 filter
A second look at N=1 supersymmetric AdS_4 vacua of type IIA supergravity
Gerardo Aldazabal, Anamaria Font
We show that a class of type IIA vacua recently found within the N=4 effective approach corresponds to compactification on Ads_4 \times S^3 \times S^3/Z_2^3. The results obtained u…
Entropy-driven phase transition in a system of long rods on a square lattice
D. H. Linares, F. Roma, A. J. Ramirez-Pastor
The isotropic-nematic (I-N) phase transition in a system of long straight rigid rods of length k on square lattices is studied by combining Monte Carlo simulations and theoretical…
Poisson-Lie T-Duality and non trivial monodromies
A. Cabrera, H. Montani, M. Zuccalli
We describe a general framework for studying duality between different phase spaces which share the same symmetry group . Solutions corresponding to collective dynamics…
Casimir effect in 2+1 dimensional noncommutative theories
C. D. Fosco, G. A. Moreno
We study the Dirichlet Casimir effect for a complex scalar field on two noncommutative spatial coordinates plus a commutative time. To that end, we introduce Dirichlet-like boundar…
Probing phase coexistence and stabilization of the spin-ordered ferrimagnetic state by Calcium addition in the YBa_{1-x}Ca_{x}Co_{2}O_{5.5} layered cobaltites using neutron diffraction
G. Aurelio, J. Curiale, R. D. Sanchez +1
In this article we study the effects of a partial substitution of Ba with the smaller cation Ca in the layered cobaltites YBaCo_2O_{5+δ} for δ\approx 0.5. Neutron thermodiffractogr…
One-loop effects in a self-dual planar noncommutative theory
C. D. Fosco, G. A. Moreno
We study the UV properties, and derive the explicit form of the one-loop effective action, for a noncommutative complex scalar field theory in 2+1 dimensions with a Grosse-Wulkenha…