Buscar
Mostrando ítems 1-10 de 115
Canonical Quantization of a Massive Weyl Field
(SPRINGERNEW YORK, 2012)
We construct a consistent theory of a quantum massive Weyl field. We start with the formulation of the classical field theory approach for the description of massive Weyl fields. It is demonstrated that the standard Lagrange ...
First quantized approaches to neutrino oscillations and second quantization
(2006-04-06)
Neutrino oscillations are treated from the point of view of relativistic first quantized theories and compared to second quantized treatments. Within first quantized theories, general oscillation probabilities can be found ...
Constrained BV description of string field theory
(Springer, 2012-03-01)
In the conventional BV description of string field theory, the string field Phi is split as Phi = Psi vertical bar Psi* where Psi includes all states with ghost number <= G and describes the spacetinte fields, and Psi* ...
Comments on regularization ambiguities and local gauge symmetries
(World Scientific Publ Co Pte Ltd, 2005-08-20)
We study the regularization ambiguities in an exact renormalized (1 + 1)-dimensional field theory. We show a relation between the regularization ambiguities and the coupling parameters of the theory as well as their role ...
Renormalized new solutions for the massless Thirring model
(World Scientific Publ Co Pte Ltd, 2005-12-10)
We present a nonperturbative study of the (1 + 1)-dimensional massless Thirring model by using path integral methods. The regularization ambiguities - coming from the computation of the fermionic determinant - allow to ...
Field theory actions for ambitwistor string and superstring
(Springer, 2018-09-17)
We analyze the free ambitwistor string field theory action for the bosonic string, heterotic string and both GSO sectors of the Type II string. The spectrum contains non-unitary states and provides an interesting consistency ...
Markovian versus non-Markovian stochastic quantization of a complex-action model
(World Scientific Publ Co Pte Ltd, 2014-03-10)
We analyze the Markovian and non-Markovian stochastic quantization methods for a complex action quantum mechanical model analog to Maxwell-Chern-Simons electrodynamics in Weyl gauge. We show through analytical methods ...
Bosonic sectorized strings and the (DF)(2) theory
(Springer, 2020-01-15)
In this work, we investigate the bosonic chiral string in the sectorized inter- pretation, computing its spectrum, kinetic action and 3-point amplitudes. As expected, the bosonic ambitwistor string is recovered in the ...
Supertwistor description of ambitwistor strings
(2020-01-01)
A new ambitwistor string is constructed based on a ten-dimensional super-twistor model for the massless superparticle. Although covariant quantization is complicated by reducibility issues, a light-cone gauge analysis can ...
On the spectrum and spacetime supersymmetry of heterotic ambitwistor string
(Springer, 2019-08-20)
We analyse the BRST cohomology of the Ramond sector of heterotic ambitwistor theory. We also write the free string field theory action and compute the supersymmetry transformations.