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Existence of isotropic complete solutions of the Π-Hamilton–Jacobi equation
(Elsevier Science, 2020-02)
Consider a symplectic manifold M, a Hamiltonian vector field X and a fibration Π:M→N. Related to these data we have a generalized version of the (time-independent) Hamilton–Jacobi equation: the Π-HJE for X, whose unknown ...
Weak decays of magnetized charged pions in the symmetric gauge
(American Physical Society, 2020-02)
We consider the decay π-→lνl (l=e-,μ-) in the presence of an arbitrary large uniform magnetic field, using the symmetric gauge. The consequences of the axial symmetry of the problem and the issue of angular momentum ...
Gauge invariant fluctuations of the metric during inflation from a new scalar-tensor Weyl-integrable gravity model
(American Physical Society, 2016-09)
We investigate gauge invariant scalar fluctuations of the metric during inflation in a nonperturbative formalism in the framework of a recently formulated scalar-tensor theory of gravity, in which the geometry of space-time ...
TT¯ type deformation in the presence of a boundary
(Springer, 2018-08)
We continue the study of a recently proposed solvable irrelevant deformation of an AdS3/CFT2 correspondence that leads in the UV to a theory with Hagedorn spectrum. This can be thought of as a single trace analog of the ...
Boltzmann hierarchies for self-interacting warm dark matter scenarios
(IOP Publishing, 2020-09)
We provide a general framework for self-interacting warm dark matter (WDM) in cosmological perturbations, by deriving from first principles a Boltzmann hierarchy which retains certain independence from a particular interaction ...
Empathy in children: theory and assessment
(Nova Science Publishers, 2016)
Empathy is the ability to perceive, share, and understand the emotional states of others, and it is crucial to succeeding in society. This social and emotional competence underlies some of the most significant human ...
A note on the spectral flow operator
(American Physical Society, 2019-12)
The insertion of the spectral flow operator in a string scattering amplitude on AdS3×N produces a change in the winding number of one of the incoming (or outgoing) states, making it possible to compute amplitudes of processes ...