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Algorithm for probing the unitarity of topologically massive models
(Springer, 2005-08-01)
An uncomplicated and easy handling prescription that converts the task of checking the unitarity of massive, topologically massive, models into a straightforward algebraic exercise, is developed. The algorithm is used to ...
Unitarity of higher derivative spin-3 models
(2020-03-01)
The fourth order in derivatives New Massive Gravity model NMG, describes a massive spin-2 particle in D=2+1. At the linearized level a proof of unitarity necessarily implies that the generalization to higher dimensions ...
Universal scaling in a trapped Fermi super-fluid in the BCS-unitarity crossover
(Wiley-v C H Verlag Gmbh, 2009-12-01)
Using numerical simulation based-on a density-functional equation for a trapped Fermi-super-fluid valid along the BCS-unitarity crossover, we establish robust scaling over many orders of magnitude in the observables of the ...
An Alternative Approach Concerning Elko Spinors and the Hidden Unitarity
(2019-09-01)
In this theoretical communication we look towards understand the underlying phenomenology concerning the Elko spinors within VSR theory. The program to be accomplished here start when we define the eigenspinors of the ...
Unitarization of uniformly bounded subgroups in finite von Neumann algebras
(Oxford University Press, 2014-12)
This note presents a new proof of the fact that every uniformly bounded group of invertible elements in a finite von Neumann algebra is similar to a unitary group. In 1974, Vasilescu and Zsido proved this result using the ...
Some comments on unitarity gauge
(Revista Mexicana de Física, 2009)
Superfluid Bose-Fermi mixture from weak coupling to unitarity
(Amer Physical Soc, 2008-10-01)
We investigate the zero-temperature properties of a superfluid Bose-Fermi mixture by introducing a set of coupled Galilei-invariant nonlinear Schrodinger equations valid from weak coupling to unitarity. The Bose dynamics ...
Superfluid Bose-Fermi mixture from weak coupling to unitarity
(2008-10-30)
We investigate the zero-temperature properties of a superfluid Bose-Fermi mixture by introducing a set of coupled Galilei-invariant nonlinear Schrödinger equations valid from weak coupling to unitarity. The Bose dynamics ...
Nonlinear Schrodinger equation for a superfluid Bose gas from weak coupling to unitarity: Study of vortices
(Amer Physical Soc, 2008-03-01)
We introduce a nonlinear Schrodinger equation to describe the dynamics of a superfluid Bose gas in the crossover from the weak-coupling regime, where an(1/3)<<1 with a the interatomic s-wave scattering length and n the ...
Vortex lattice in the crossover of a Bose gas from weak coupling to unitarity
(2018-12-01)
The formation of a regular lattice of quantized vortices in a fluid under rotation is a smoking-gun signature of its superfluid nature. Here we study the vortex lattice in a dilute superfluid gas of bosonic atoms at zero ...