Topic
Scalar potential
About: Scalar potential is a research topic. Over the lifetime, 3642 publications have been published within this topic receiving 78868 citations. The topic is also known as: potential.
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TL;DR: This work confirms not only that ears do indeed appear to have potential as a biometric, but also that the new approach is well suited to their description, being robust especially in the presence of noise, and having the advantages that the ear does not need to be explicitly extracted from the background.
255 citations
TL;DR: In this article, the electrodynamics of a compressible charged layer placed in a uniform rigid neutralizing background is studied with a hydrodynamic description, and the resulting plasma oscillations and screening differ considerably from those in bulk media.
253 citations
TL;DR: In this article, the authors studied the topological conditions for general Calabi-Yaus to get a non-supersymmetric AdS exponentially large volume minimum of the scalar potential in flux compactifications of IIB string theory.
Abstract: We study the topological conditions for general Calabi-Yaus to get a non-supersymmetric AdS exponentially large volume minimum of the scalar potential in flux compactifications of IIB string theory. We show that negative Euler number and the existence of at least one blow-up mode resolving point-like singularities are necessary and sufficient conditions for moduli stabilisation with exponentially large volumes. We also analyse the general effects of string loop corrections on this scenario. While the combination of α' and nonperturbative corrections are sufficient to stabilise blow-up modes and the overall volume, quantum corrections are needed to stabilise other directions transverse to the overall volume. This allows exponentially large volume minima to be realised for fibration Calabi-Yaus, with the various moduli of the fibration all being stabilised at exponentially large values. String loop corrections may also play a role in stabilising 4-cycles which support chiral matter and cannot enter directly into the non-perturbative superpotential. We illustrate these ideas by studying the scalar potential for various Calabi-Yau three-folds including K3 fibrations and briefly discuss the potential phenomenological and cosmological implications of our results.
250 citations
TL;DR: In this paper, the relativistic quantum motion of charged spin-0 and spin-1 particles in the presence of a uniform magnetic field and scalar potentials in the cosmic string spacetime is analyzed.
Abstract: In this paper we analyze the relativistic quantum motion of charged spin-0 and spin-
$\frac{1}{2}$
particles in the presence of a uniform magnetic field and scalar potentials in the cosmic string spacetime. In order to develop this analysis, we assume that the magnetic field is parallel to the string and the scalar potentials present a cylindrical symmetry with their center on the string. Two distinct configurations for the scalar potential, S(r), are considered: (i) the potential proportional to the inverse of the polar distance, i.e., S∝1/r, and (ii) the potential proportional to this distance, i.e., S∝r. The energy spectra are explicitly computed for different physical situations and their dependences on the magnetic field strength and scalar coupling constants are presented.
249 citations
TL;DR: In this paper, the general lagrangian for N = 2 matter-coupled supergravity is obtained, by gauging general isometries of quaternionic manifolds which can be coupled to supergravity.
249 citations