Showing papers on "Non-critical string theory published in 1996"
TL;DR: The Bekenstein-Hawking area entropy relation S BH = A 4 was derived for a class of five-dimensional extremal black holes in string theory by counting the degeneracy of BPS solition bound states.
3,497 citations
TL;DR: In this paper, it was shown that the ten-dimensional E 8 × E 8 heterotic string is related to an eleven-dimensional theory on the orbifold R 10 × S 1 / Z 2.
2,373 citations
TL;DR: In this article, it was shown that the quantum heterotic string has vacua with higher rank than is possible in conformal field theory, and that an extra SU (2) gauge symmetry appears that is supported in the core of the instanton.
961 citations
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TL;DR: The first two thirds of these lectures closely follow the earlier ITP lectures hep-th/9602052, written with S. Chaudhuri and C. Johnson as discussed by the authors.
Abstract: This is an introduction to the properties of D-branes, topological defects in string theory on which string endpoints can live. D-branes provide a simple description of various nonperturbative objects required by string duality, and give new insight into the quantum mechanics of black holes and the nature of spacetime at the shortest distances. The first two thirds of these lectures closely follow the earlier ITP lectures hep-th/9602052, written with S. Chaudhuri and C. Johnson. The final third includes more extensive applications to string duality.
860 citations
TL;DR: In this paper, the implications of T -duality and extended gauge symmetry for the conjectured equivalence of heterotic and Type I superstrings were studied. But the results of the study were limited to the Dirichlet one-brane of Type I string theory.
787 citations
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TL;DR: In this paper, it was shown that many of the p -branes of type II string theory and d = 11 supergravity can have boundaries on other p-branes, and the rules for when this can and cannot occur are derived from charge conservation.
747 citations
TL;DR: In this paper, the nonperturbative superpotential can be calculated in M-theory compactification to three dimensions on a Calabi-Yau four-fold X. The results carry over to certain Type IIB and heterotic string compactifications to four dimensions with N = 1 supersymmetry.
717 citations
TL;DR: In this article, the singularities in the moduli space of string compactifications to six dimensions with N = 1 supersymmetry were studied and shown to arise from either massless particles or non-critical tensionless strings.
602 citations
TL;DR: In this paper, the role played by BPS states in the calculation of threshold corrections of D = 4, N = 2 heterotic string compactifications is clarified, and the relation of their results with string duality is discussed.
513 citations
TL;DR: In this article, Lorentz-invariant expectation values for antisymmetric tensor field strengths in Calabi-Yau compactification of IIA string theory are considered.
462 citations
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TL;DR: In this paper, the authors present a series of remedial lectures on open and unoriented strings for the heterotic string generation, focusing on the interesting features that arise under T-duality.
Abstract: This is a series of remedial lectures on open and unoriented strings for the heterotic string generation. The particular focus is on the interesting features that arise under T-duality---D-branes and orientifolds. The final lecture discusses the application to string duality. There will be no puns. Lectures presented by J. P. at the ITP from Nov. 16 to Dec. 5, 1995.
TL;DR: In this paper, the authors show that the strong/weak coupling duality in D = 6 can be extended to a four-dimensional string/string/string triality in the form of a strong duality and a target space duality acting on the dilaton/axion, complex Kahler form and complex structure fields.
TL;DR: It is shown that to leading order above extremality, this entropy precisely counts the number of string states with the given energy and charges, implying that Hawking decay of the near-extremal black string can be analyzed in string perturbation theory and is perturbatively unitary.
Abstract: A six-dimensional black string is considered and its Bekenstein-Hawking entropy computed. It is shown that to leading order above extremality this entropy precisely counts the number of string states with the given energy and charges. This identification implies that Hawking decay of the near-extremal black string can be analyzed in string perturbation theory and is perturbatively unitary.
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TL;DR: The main purpose of these lecture notes is to explore the moduli space of type IIA, type IIB, and heterotic string compactified on a K3 surface as mentioned in this paper.
Abstract: The primary purpose of these lecture notes is to explore the moduli space of type IIA, type IIB, and heterotic string compactified on a K3 surface. The main tool which is invoked is that of string duality. K3 surfaces provide a fascinating arena for string compactification as they are not trivial spaces but are sufficiently simple for one to be able to analyze most of their properties in detail. They also make an almost ubiquitous appearance in the common statements concerning string duality. We review the necessary facts concerning the classical geometry of K3 surfaces that will be needed and then we review "old string theory" on K3 surfaces in terms of conformal field theory. The type IIA string, the type IIB string, the E8 x E8 heterotic string, and Spin(32)/Z2 heterotic string on a K3 surface are then each analyzed in turn. The discussion is biased in favour of purely geometric notions concerning the K3 surface itself. These are an extended form of the notes from lectures given at TASI 96.
TL;DR: In this paper, the massless sector of boundary states of D-branes, as well as of dy-strings of charge, is constructed, and the string tension formula predicted by duality in the type IIB theory is obtained.
TL;DR: In this paper, a more careful analysis shows that Callan and Maldacena were not fully consistent in their estimates and that their model can not be used to extrapolate to large mass without being in conflict with the Hawking-Bekenstein entropy formula.
TL;DR: In this article, the point particle limit of a particular four dimensional, N = 2 supersymmetric compactification of heterotic strings was obtained using tree-level type II string duality.
01 Mar 1996
TL;DR: Some relationships between string theories and eleven-dimensional supergravity are discussed and reviewed in this article, where some relationships can be derived from others, and the cases of N = 2 supersymmetry in nine dimensions and N = 4 supersymmetric in four dimensions are discussed in some detail.
Abstract: Some relationships between string theories and eleven-dimensional supergravity are discussed and reviewed. We see how some relationships can be derived from others. The cases of N = 2 supersymmetry in nine dimensions and N = 4 supersymmetry in four dimensions are discussed in some detail. The latter case leads to consideration of quotients of a K3 surface times a torus and to a possible peculiar relationship between eleven-dimensional supergravity and the heterotic strings in ten dimensions.
TL;DR: In this paper, a chiral open-string vacua with N = 1 supersymmetry in four dimensions was constructed, and a comparison was drawn with a heterotic vacuum with non-standard embedding, and some properties of the low energy effective field theory were discussed.
01 Mar 1996
TL;DR: In this article, a simple adiabatic argument and by considering the heterotic string counterpart of certain symmetries of Type II superstrings such as (-1) FL and orientation reversal, they construct orbifold candidates for dual pairs of heterotic and Type II string theories with N = 2 and N = 1 supersymmetry.
Abstract: Based on a simple adiabatic argument and by considering the heterotic string counterpart of certain symmetries of Type II superstrings such as (-1) FL and orientation reversal, we construct orbifold candidates for dual pairs of heterotic and Type II string theories with N = 2 and N = 1 supersymmetry. We also analyze from a similar point of view the K3 fibrations that enter in recently proposed N = 2 candidates and use this structure together with certain orientation-reversing symmetries to construct N = 1 dual pairs. These pairs involve generalizations of Type I vacua which can be equivalent to E 8 × E 8 heterotic strings, while standard Type I vacua are related to SO (32).
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TL;DR: In this article, a local geometric description of how charged matter arises in type IIA, Mtheory, or F-theory compactifications on Calabi-Yau manifolds is provided.
Abstract: We provide a local geometric description of how charged matter arises in type IIA, M-theory, or F-theory compactifications on Calabi-Yau manifolds. The basic idea is to deform a higher singularity into a lower one through Cartan deformations which vary over space. The results agree with expectations based on string dualities.
TL;DR: In this article, the spontaneous breaking of Lorentz and CPT invariance in the open bosonic string using a truncation scheme to saturate the string-field action at successively higher levels is studied.
TL;DR: In this paper, it was shown that extremal dyonic black holes in the 4-dimensional low energy, classical field theory limit of toroidally compactified heterotic string theory represent largely degenerate classes of states in the quantum theory.
TL;DR: In this paper, a general class of exact solutions of low-energy supergravity that correspond to all these states was presented, which can be interpreted as supersymmetric black holes with a degeneracy related to the degeneracy of the string states.
TL;DR: This work considers low energy, non-relativistic scattering of two Dirichlet zero-branes as an ex-ercise in quantum mechanics, providing evidence for the role of scales shorter than the string length in the weakly coupled dynamics of type IIA strings.
Abstract: Daniel Kabat and Philippe PouliotDepartment of Physics and AstronomyRutgers UniversityPiscataway, NJ 08855–0849kabat, pouliot@physics.rutgers.eduWe consider low energy, non-relativistic scattering of two Dirichlet zero-branes as an ex-ercise in quantum mechanics. For weak string coupling and sufficiently small velocity, thedynamics is governed by an effective U(2) gauge theory in 0+1 dimensions. At low ener-gies, D-brane scattering can reliably probe distances much shorter than the string scale.The only length scale in the quantum mechanics problem is the eleven dimensional Plancklength. This provides evidence for the role of scales shorter than the string length in theweakly coupled dynamics of type IIA strings.
TL;DR: In this paper, the general case of N = 2 dual pairs of type IIA/heterotic string theories in four dimensions was considered and it was shown that if a string in this pair can be viewed as having been compactified on a Calabi-Yau manifold in the usual way then this manifold must be of the form of a K3 fibration.
TL;DR: In this paper, polarization-dependent string-string scattering provides new evidence for the identification of the Dabholkar-Harvey (DH) string solution with the heterotic string itself.
TL;DR: In this paper, the authors construct the open string boundary states corresponding to various time-dependent deformations of the Dirichlet-brane and explore several ways in which they may be used to study stringy soliton collective coordinate quantum dynamics.
TL;DR: In this paper, Kikkawa et al. considered conformal sigma models which describe string configurations corresponding to various extreme dyonic black holes in four and five dimensions and suggested a universal relation between the black hole entropy (area) and the statistical entropy of BPS-saturated oscillation states of solitonic string.
Abstract: Supersymmetric extreme dyonic black holes of toroidally compactified heterotic or type II string theory can be viewed as lower-dimensional images of solitonic strings wound around a compact dimension. We consider conformal sigma models which describe string configurations corresponding to various extreme dyonic black holes in four and five dimensions. These conformal models have regular short-distance region equivalent to a WZW theory with level proportional to magnetic charges. Arguments are presented suggesting a universal relation between the black hole entropy (area) and the statistical entropy of BPS-saturated oscillation states of solitonic string.[Extended version of a talk at the Workshop "Frontiers in Quantum Field Theory", in honor of the 60th birthday of K. Kikkawa (Osaka, Japan, 14-17 December 1995)]
TL;DR: In this article, the effective action of N = 2 Yang-Mills theory with adjoint matter is shown to be governed by an integrable spin model with spectral parameter on an elliptic curve.