• No results found

Finding Vacua for Non-Perturbative Superpotentials

A new method for finding vacua in string phenomenology

A new method for finding vacua in string phenomenology

... 2.2 Finding Vacua for Non-Perturbative Superpotentials The methods of the previous subsection constitute a powerful tool in the context of locating perturbative vacua in ...

28

Worldsheet instantons, torsion curves and non-perturbative superpotentials

Worldsheet instantons, torsion curves and non-perturbative superpotentials

... the non-perturbative superpotential induced by the worldsheet instantons of a very different class of heterotic string vacua, namely, the “heterotic standard model” compactifications presented in ...

8

Non-vanishing superpotentials in heterotic string theory and discrete torsion

Non-vanishing superpotentials in heterotic string theory and discrete torsion

... the non-perturbative superpotential in E 8 × E 8 heterotic string the- ory on a non-simply connected Calabi-Yau manifold X, as well as on its simply connected covering space ˜ ...the ...

42

Non-perturbative renormalisation for overlap fermions

Non-perturbative renormalisation for overlap fermions

... Even after this our data still contained lattice artefacts, especially at large p 2 . To reduce these we calculated the same Green functions in lattice perturbation theory to one loop. We subtracted off the terms of ...

6

Non perturbative aspects of galileon duality

Non perturbative aspects of galileon duality

... This would appear to map a theory with multiple vacua to one with a unique vacuum state. However, by regulating the duality transformation using external sources, we are able to preserve the full vacuum structure ...

11

Holomorphic Couplings In Non-Perturbative String Compactifications

Holomorphic Couplings In Non-Perturbative String Compactifications

... Chapter 6 Constructions and Calculations in String Dualities In this chapter we present explicit calculations of the effective superpotentials in F-theory and in heterotic/F-theory dual setups, where we mainly ...

305

Multitrace superpotentials vs. matrix models

Multitrace superpotentials vs. matrix models

... forbid non-planar ...single-trace superpotentials in that the field theory effective action is not the derivative of a multi-trace matrix model free ...of finding the field theories whose effective ...

36

An abundance of heterotic vacua

An abundance of heterotic vacua

... Let us begin with a brief review of the compactification of heterotic string theory and, in the non-perturbative regime, heterotic M-theory. This section serves as a reminder of the mathematical ...

28

Non-perturbative aspects of string theory from elliptic curves

Non-perturbative aspects of string theory from elliptic curves

... quantum periods. From a WKB expansion of brane wavefunctions we defined a quantum di fferential on the Riemann surface of the B-model geometry. This can in principle be integrated around the cycles of the respective ...

119

Non-Perturbative Physics from the Picard-Lefschetz Theory of Path Integrals.

Non-Perturbative Physics from the Picard-Lefschetz Theory of Path Integrals.

... for this integral? Providing a clear answer to this question requires a good understanding of the topology of infinite- dimensional manifolds and finding the mathematical means of handling them systematically, ...

202

Non Perturbative Approach for Dust Acoustic Waves in Plasma with Non Thermal Ions and Trapped Electrons

Non Perturbative Approach for Dust Acoustic Waves in Plasma with Non Thermal Ions and Trapped Electrons

... new finding in this study is that, the higher contribution of nonisothermality arises the possibility of occurrence of different solitary wave structures, which are not found in the observations of Freja ...

11

Perturbative and Non-Perturbative Aspects of Orientifold Compactifications

Perturbative and Non-Perturbative Aspects of Orientifold Compactifications

... These non-dynamical objects are localized at the fixed point locus of σ, π O6 , which is a three-cycle in H 3 (M, Z ) and carries tension and charge under the RR seven-form C 7 ...

224

Pair Production in Non Perturbative QCD

Pair Production in Non Perturbative QCD

... a non-abelian background field is introduced. The number of non-perturbative quark-antiquark produced per unit time, per unit volume and per unit transverse momentum from a given constant ...

5

Selected Issues in Non-Perturbative QCD

Selected Issues in Non-Perturbative QCD

... Here we present a short and incomplete list of the topics that have been presented during the meetings of one of the four working groups: the Non Perturbative QCD Working Group 1 . A complete collection of ...

10

Non-perturbative selection rules in F-theory

Non-perturbative selection rules in F-theory

... in non-perturbative string compacti- ...a perturbative and a non- perturbative homological relation for fibral curves wrapped by M2-branes: a set of fibral curves satisfies a ...

57

Probing non-perturbative effects in M-theory

Probing non-perturbative effects in M-theory

... • The obtained results can be compared with the numerical results computed from the TBA equations in section 2 for various (non-integral) values of N f . This comparison gives a highly non-trivial test of ...

35

Non-perturbative models of intermittency in edge turbulence

Non-perturbative models of intermittency in edge turbulence

... Reuse Unless indicated otherwise, fulltext items are protected by copyright with all rights reserved. The copyright exception in section 29 of the Copyright, Designs and Patents Act 1988 allows the making of a single ...

20

Non-perturbative quantum gravity : the loop representation

Non-perturbative quantum gravity : the loop representation

... e non-com pact case, th e wave- functionals m ust also satisfy an additional Schrödinger equation [25, E qn ...involuted non-linearities, not a single explicit solution is ...

121

Conductance from Non-perturbative Methods II

Conductance from Non-perturbative Methods II

... 3. Conclusions and open problems In this section I will present the main conclusions of my talk and also of part I, since the main aim of this work was actually to compare the two theoretical descriptions presented in ...

18

Conductance from Non-perturbative Methods II

Conductance from Non-perturbative Methods II

... Copyright and reuse: City Research Online aims to make research outputs of City, University of London available to a wider audience.. Copyright and Moral Rights remain with the author([r] ...

6

Show all 10000 documents...

Related subjects