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Topological defects in open string field theory

, Japan 9 Via Pietro Giuria 1 , I-10125 Torino , Italy We show how conformal field theory topological defects can relate solutions of open string field theory for different boundary conditions. To this end ... upon defect action. Surprisingly the fusion algebra of defects is realized on open string fields only up to a (star algebra) isomorphism. Conformal Field Models in String Theory; String Field Theory

Galilean field theories and conformal structure

suggest that in nite enhancement of symmetries in the non-relativistic limit is a generic feature of conformal eld theories in any dimension. Conformal and W Symmetry; Conformal Field Theory; Space-Time ... Quantum Electrodynamics. A very natural avenue to which we would like to extend our work is Supersymmetric gauge theories. In particular, we would like to examine N = 4 Super Yang-MIlls (SYM) theory. This

Matter field Kähler metric in heterotic string theory from localisation

case we are focusing on in this note. One of the next important steps towards realistic particle physics from string theory is to nd models with the correct Yukawa couplings. The calculation of physical ... Yukawa coupings in string theory proceeds in three steps. First, the holomorphic Yukawa couplings, that is, the trilinear couplings in the superpotential have to be determined. As holomorphic quantities

Ultraviolet phenomena in AdS self-interacting quantum field theory

Quantum A.3 Klein-Gordon elds A.4 Chronological propagators eld theory \bulks" and conformal eld theories on their boundaries [1{3]. The interest in spacetimes having positive curvature is older as they ... [INSPIRE]. [25] S.J. Avis , C.J. Isham and D. Storey , Quantum Field Theory in anti-de Sitter Space-Time, Phys. Rev. D 18 ( 1978 ) 3565 [INSPIRE]. [26] C. Kent , Quantum scalar eld theory on anti-de Sitter

Quantum gravity from conformal field theory

theory. In particular this yields much new information on the spectrum of double-trace operators which can then be used, in combination with superconformal symmetry and crossing symmetry, to obtain a ... dimensions. 1/N Expansion; AdS-CFT Correspondence; Conformal Field Theory; Inte- - Quantum 1 Introduction and summary 2 3 4 5 6 7 8 Four-point functions of half-BPS multiplets The operator product

A note on the WGC, effective field theory and clockwork within string theory

)2 with Z ≫ 1). This type of Higgs multiplets play also a key role in clockwork U(1) theories. We study these issues in the context of heterotic string theory and find that, even if there is no new ... physics at the standard magnetic WGC scale Λ ∼ gIRMP , the string scale is just kIRΛ. Here kIR is the level of the IR U(1) worldsheet current. Effective Field Theories; Superstrings and Heterotic Strings

Inverse bootstrapping conformal field theories

AbstractWe propose a novel approach to study conformal field theories (CFTs) in general dimensions. In the conformal bootstrap program, one usually searches for consistent CFT data that satisfy ... CFTs, the 4 Wilson-Fisher CFT, the Lee-Yang CFTs and the Ising CFTs are consistent with the universal relations from the minimal fusion rule Conformal Field Theory; E ective Field Theories - ; 2 are

Weak Adiabatic Limit in Quantum Field Theories with Massless Particles

result applies, for example, to quantum electrodynamics and non-abelian Yang–Mills theories. ... Henri Poincar´e 1. Introduction Relativistically covariant perturbative quantum field theory (QFT) in the Minkowski space is one of the most successful modern physical theories. Its models, especially

6d string chains

singularities in Type IIB string theory. We nd that these bound states of strings admit (0,4) supersymmetric quiver descriptions and show how one can compute their elliptic genera. Duality in Gauge Field ... Theories; F-Theory; Field Theories in Higher Dimen- Chains of strings Partition functions of M5 branes probing ADE Singularities 1 Introduction 2 3 4 5 3.1 3.2 4.1 4.2 M5 branes probing an AN 1

On the BV formalism of open superstring field theory in the large Hilbert space

solutions to the master equation defined by Dirac antibrackets on the constrained string field-antifield space. It is expected that partial gauge-fixing enables us to relate superstring field theories based ... 193 (1987) 31 [INSPIRE]. [10] B. Zwiebach, Closed string field theory: quantum action and the B-V master equation, Nucl. Phys. B 390 (1993) 33 [hep-th/9206084] [INSPIRE]. [11] M.R. Gaberdiel and B

Novel string field theory with also negative energy constituents/objects gives Veneziano amplitude

quantum eld theory! From the previous works of ours it is important to remember: we develop a formalism for description of an arbitrary number of strings (String Field Theory) by means of a Hilbert space ... indicates that our novel string eld theory is indeed string theory. Bosonic Strings; Lattice Integrable Models; String Field Theory - 1 Introduction 1.1 1.2 1.3 1.4 1.5 1.6 1.8 1.9 2.1 2.2 6.1 6.2 7.1 7.2

Open superstring field theory based on the supermoduli space

AbstractWe present a new approach to formulating open superstring field theory based on the covering of the supermoduli space of super-Riemann surfaces and explicitly construct a gauge-invariant ... , Quantization of Gauge Theories with Linearly Dependent Generators, Phys. Rev. D 28 (1983) 2567 [Erratum ibid. D 30 (1984) 508] [INSPIRE]. [12] B. Zwiebach, Closed string field theory: Quantum action and the B-V

The effective supergravity of little string theory

In this work we present the minimal supersymmetric extension of the five-dimensional dilaton-gravity theory that captures the main properties of the holographic dual of little string theory. It is ... context of the so-called clockwork models [6–8] which address the exponential scale separation in field theory in a new way [9, 10]. Little string theory (LST) corresponds to a non-trivial weak coupling

Quantum deformation of planar amplitudes

Grassmannian that are invariant with respect to the torus action. (This Grassmannian was constructed in the framework of quantum group theory.) We come to the idea that the theory of [1] can be quantized (more ... simultaneously; if this is the case the U(N ) gauge theory should interact with constant B-field. (Interaction with B-field can explain the violation of Lorentz invariance that should be present in U(N ) gauge

Wrapping rules (in) string theory

In this paper we show that the number of all 1/2-BPS branes in string theory compactified on a torus can be derived by universal wrapping rules whose formulation we present. These rules even apply to ... -brane in Type IIB string theory are charged under the RR potentials C9 and C10, respectively. For maximal theories, all (D − 1) and D-form potentials have been determined using various methods. In the

One loop tadpole in heterotic string field theory

We compute the off-shell 1-loop tadpole amplitude in heterotic string field theory. With a special choice of cubic vertex, we show that this amplitude can be computed exactly. We obtain explicit and ... Introduction Quantum closed string eld theories Closed bosonic string eld theory Heterotic string eld theory One loop tadpole in closed bosonic string eld theory General construction of cubic and tadpole

Extended Riemannian geometry II: local heterotic double field theory

theories, in Proceedings of Nonperturbative quantum field theory, Carg`ese France (1987), [NATO Sci. Ser. B 185 (1988) 101]. (1999) 819 [hep-th/9907189] [INSPIRE]. Categor. 12 (2004) 492 [math/0307263 ... that the B-field of bosonic and type II string theory is part of the connective structure of an abelian gerbe [38, 39]. It turns out that the fields ω, A and B form part of the connective structure of a

A Cohomological Perspective on Algebraic Quantum Field Theory

Algebraic quantum field theory is considered from the perspective of the Hochschild cohomology bicomplex. This is a framework for studying deformations and symmetries. Deformation is a possible ... construct mathematical models of interacting quantum field theories such as the Standard Model or whatever may supplant it. Algebraic Quantum Field Theory (AQFT) [19] does provide a framework for describing

Worldline quantization of field theory, effective actions and L∞ structure

a symmetry that characterizes many (classical) field theories, including closed string field theory (a good introduction to L∞ algebras and field theory is [28]). In section 2 we will carry out the ... (more general) symmetry are not yet clear. It characterizes a large class of perturbative field theories [28], but certainly not all. For instance, it is not present in the open string field theory `a la

Non-Abelian black holes in string theory

"gauge" D5-branes do contribute to the mass in the expected form. The correct interpretation of the 5-dimensional charges in terms of the string-theory objects solves the non-Abelian hair puzzle, allowing ... -Abelian black holes that can be obtained by adding an instanton eld to the well-known D1D5W Abelian black holes. Naively, Black Holes in String Theory; Black Holes - the non-Abelian elds seem to