String theory predicts ten total spacetime dimensions, but we clearly live in a world with four dimensions (three space and one time)! Thankfully, it is not a problem to get from ten to four. Six of the dimensions predicted by string theory could be wrapped into a small compact shape. T...
One attempt to reconcile quantum mechanics and general relativity into a theory of everything is string theory, which suggests that electrons and quarks are oscillating one-dimensional 'strings'. String theory remains controversial since it requires unobserved additional dimensions and has yet to make ...
In Sect. 2.4, I focused on the importance of solitons. The importance of course depends on what kind of field theory and solitons we consider. Solitons appear in various field theories, and an index characterizing those various solitons is the dimension of the solitons. The kinks, vortices, ...
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Field Theory in 2+ε Dimensions and Critical Dimension in the String Model. II The critical dimension in the string model is analysed in terms of the field theory in the two-dimensional Minkowski space-time which is obtained by transf... Yūichi,Chikashige,Yasunori,... - 《Prog.theor.phys...
december 2, 2012 editor: m. dine language: english paperback isbn: 9780444871022 9 7 8 - 0 - 4 4 4 - 8 7 1 0 2 - 2 ebook isbn: 9780444596055 9 7 8 - 0 - 4 4 4 - 5 9 6 0 5 - 5 ``string theory in four dimensions'' contains a representative collection of papers dealing...
Here Type-IIA/IIB string theory contains the non-BPS D p- branes [125], which have precisely those dimensions which BPS D-branes do not have explicitly. This implies that Type- IIA string theory has non-BPS D p-branes for only odd p and Type-IIB string theory has non-BPS D p-...
Motivated by perturbation theory for free energy, one can define the running coupling constant for the singlet free energy from lattice QCD as [17](26)αQQ¯=3L24dEQQ¯dL. Here L is the separate distance of heavy quark-antiquark, which is given by Eq. (17). The undetermined constant...
In supersymmetric Yang–Mills (SYM) theory a large class of Feynman integrals in four space–time dimensions lives in the subspace of SVMZVs or SVMPs, cf. Refs. [18]. As pointed out by Brown in [13], this fact opens the interesting possibility to replace general amplitudes with their sin...
superstring theory in four dimensions, and for more than thirty years now, the free fermionic formulation (fff) has been a very useful tool to perform explicit calculations and construct models that may serve as a toe. recently, we derived from the fff of superstring theory, a starobinsky ...