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Relevant bibliographies by topics / Supergravity; Low energy; String theory

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Academic literature on the topic 'Supergravity; Low energy; String theory'

Author: Grafiati

Published: 4 June 2021

Last updated: 15 February 2022

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Journal articles on the topic "Supergravity; Low energy; String theory"

1

SENGUPTA, SOUMITRA, and PARTHASARATHI MAJUMDAR. "STRINGY EFFECTS ON SUPERSYMMETRY BREAKING IN LOW ENERGY SUPERGRAVITY THEORIES." International Journal of Modern Physics A 06, no. 01 (January 10, 1991): 41–58. http://dx.doi.org/10.1142/s0217751x91000046.

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The possibility of soft supersymmetry breaking at the tree level of string-inspired low energy supergravity theory is investigated. It is shown that the stringy quantum effects like the world sheet instanton and string loop effects can induce soft supersymmetry breakings at the tree level of the observable sector. Generic mass terms and trilinear soft breaking terms that arise are calculated.

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DUFF, M. J. "M THEORY (THE THEORY FORMERLY KNOWN AS STRINGS)." International Journal of Modern Physics A 11, no. 32 (December 30, 1996): 5623–41. http://dx.doi.org/10.1142/s0217751x96002583.

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Superunification underwent a major paradigm shift in 1984 when eleven-dimensional supergravity was knocked off its pedestal by ten-dimensional superstrings. This last year has witnessed a new shift of equal proportions: perturbative ten-dimensional superstrings have in their turn been superseded by a new nonperturbative theory called M theory, which describes supermembranes and superfivebranes, which subsumes all five consistent string theories and whose low energy limit is, ironically, eleven-dimensional supergravity. In particular, six-dimensional string/string duality follows from membrane/fivebrane duality by compactifying M theory on S1/Z2×K3 (heterotic/heterotic duality) or S1×K3 (Type IIA/heterotic duality) or S1/Z2×T4 (heterotic/Type IIA duality) or S1×T4 (Type IIA/Type IIA duality).

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Burinskii, A. Ya. "Structure of spinning particle suggested by gravity, supergravity and low-energy string theory." Czechoslovak Journal of Physics 50, S1 (January 2000): 201–6. http://dx.doi.org/10.1007/s10582-000-0026-9.

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4

BELLUCCI, S., and D. O'REILLY. "STRING CORRECTIONS TO THE RIEMANN CURVATURE TENSOR AND THE THIRD-ORDER SOLUTION." Modern Physics Letters A 27, no. 22 (July 18, 2012): 1250122. http://dx.doi.org/10.1142/s0217732312501222.

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The string corrections to the Riemann curvature tensor are found to first-order in the string slope parameter. This is done for D = 10, N = 1 supergravity, the presumed low energy limit of string theory. We then use a related constraint and proceed to find a third-order solution.

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HERRERA-AGUILAR, ALFREDO, and OLEG KECHKIN. "ISRAEL–WILSON–PERJÉS SOLUTIONS IN HETEROTIC STRING THEORY." International Journal of Modern Physics A 14, no. 09 (April 10, 1999): 1345–56. http://dx.doi.org/10.1142/s0217751x99000701.

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We present a simple algorithm to obtain solutions that generalize the Israel–Wilson–Perjés class for the low energy limit of heterotic string theory toroidally compactified from D=d+3 to three dimensions. A remarkable map existing between the Einstein–Maxwell (EM) theory and the theory under consideration allows us to solve directly the equations of motion making use of the matrix Ernst potentials connected with the coset matrix of heterotic string theory.1 For the particular case d=1 (if we put n=6, the resulting theory can be considered as the bosonic part of the action of D=4, N=4 supergravity) we obtain explicitly a dyonic solution in terms of one real 2×2-matrix harmonic function and 2n real constants (n being the number of Abelian vector fields). By studying the asymptotic behavior of the field configurations we define the charges of the system. They satisfy the Bogomol'nyi–Prasad–Sommerfield (BPS) bound.

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KITAZAWA, NORIAKI. "GAUGINO CONDENSATION IN HETEROTIC FIVE-BRANE BACKGROUND." Modern Physics Letters A 19, no. 09 (March 21, 2004): 681–92. http://dx.doi.org/10.1142/s0217732304013325.

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The gaugino propagator is calculated by explicitly considering the propagation of a heterotic string between two different points in spacetime using the nontrivial worldsheet conformal field theory for the five-brane background. We find that there are no propagations of gaugino which is in the spinor representation of the nontrivial four-dimensional space of the five-brane background. This result is consistent with the arguments on the fermion zero-modes of the five-brane background in the low-energy heterotic supergravity theory. Furthermore, assuming the continuous limit to the flat spacetime background at the place far away from the five-brane, we suggest an effective propagator which is effective only at the place far away from the five-brane in the flat spacetime limit. From the effective propagator we evaluate a possible gaugino pair condensation. The result is consistent with the suggested scenario of the gaugino condensation in the five-brane background in the low-energy heterotic supergravity theory.

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KECHKIN, OLEG V. "NEW PROGRESS IN STATIONARY D=N=4 SUPERGRAVITY." Modern Physics Letters A 16, no. 34 (November 10, 2001): 2221–30. http://dx.doi.org/10.1142/s0217732301005667.

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A bosonic sector of the four-dimensional low-energy heterotic string theory with two Abelian gauge fields is considered in the stationary case. A new 4× 4 unitary null-curvature matrix representation of the theory is derived and the corresponding formulation based on the use of a new 2 × 2 Ernst type matrix complex potential is developed. The group of hidden symmetries is described and classified in the matrix-valued quasi general relativity form. A subgroup of charge symmetries is constructed and representation which transforms linearly under the action of this symmetry subgroup is established. Also the solution generation procedure based on the application of the total charge symmetry subgroup to the stationary Einstein–Maxwell theory is analyzed.

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OHTA, NOBUYOSHI. "ACCELERATING COSMOLOGIES AND INFLATION FROM M/SUPERSTRING THEORIES." International Journal of Modern Physics A 20, no. 01 (January 10, 2005): 1–40. http://dx.doi.org/10.1142/s0217751x05021257.

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We review the recent developments in obtaining accelerating cosmologies and/or inflation from higher-dimensional gravitational theories, in particular superstring theories in ten dimensions and M-theory in 11 dimensions. We first discuss why it is difficult to obtain inflationary behavior in the effective low-energy theories of superstring/M-theory, i.e. supergravity theories. We then summarize interesting solutions including S-branes that give rise to accelerating cosmologies and inflationary solutions in M-theory with higher order corrections. Other approaches to inflation in the string context are also briefly discussed.

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DANIELSSON, ULF H., GABRIELE FERRETTI, and BO SUNDBORG. "D-PARTICLE DYNAMICS AND BOUND STATES." International Journal of Modern Physics A 11, no. 31 (December 20, 1996): 5463–77. http://dx.doi.org/10.1142/s0217751x96002492.

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We study the low energy effective theory describing the dynamics of D-particles. This corresponds to the quantum-mechanical system obtained by dimensional reduction of (9+1)-dimensional supersymmetric Yang-Mills theory to 0+1 dimensions and can be interpreted as the nonrelativistic limit of the Born-Infeld action. We study the system of two like-charged D-particles and find evidence for the existence of non-BPS states whose mass grows like λ1/3 over the BPS mass. We give a string interpretation of this phenomenon in terms of a linear potential generated by strings stretching from the two D-particles. Some comments on the possible relations to black hole entropy and elevendimensional supergravity are also given.

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West, Peter. "A brief review of E theory." International Journal of Modern Physics A 31, no. 26 (September 20, 2016): 1630043. http://dx.doi.org/10.1142/s0217751x1630043x.

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I begin with some memories of Abdus Salam who was my PhD supervisor. After reviewing the theory of nonlinear realisations and Kac–Moody algebras, I explain how to construct the nonlinear realisation based on the Kac–Moody algebra [Formula: see text] and its vector representation. I explain how this field theory leads to dynamical equations which contain an infinite number of fields defined on a space–time with an infinite number of coordinates. I then show that these unique dynamical equations, when truncated to low level fields and the usual coordinates of space–time, lead to precisely the equations of motion of 11-dimensional supergravity theory. By taking different group decompositions of [Formula: see text] we find all the maximal supergravity theories, including the gauged maximal supergravities, and as a result the nonlinear realisation should be thought of as a unified theory that is the low energy effective action for type II strings and branes. These results essentially confirm the [Formula: see text] conjecture given many years ago.

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Dissertations / Theses on the topic "Supergravity; Low energy; String theory"

1

Stadler, Paul Kevin. "Low energy supergravity from string theory." Thesis, Royal Holloway, University of London, 1999. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.391920.

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Pokorski, Witold. "M-theory phenomenology." Thesis, University of Oxford, 1999. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.300136.

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Roussel, Harold. "Solution generating techniques in low energy effective string theory." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1997. http://www.collectionscanada.ca/obj/s4/f2/dsk2/ftp03/NQ37018.pdf.

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Mavromatos, N. E. "Aspects of the low energy limit of string theories." Thesis, University of Oxford, 1987. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.379937.

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Kunze, Kerstin Elena. "Cosmological solutions of four dimensional low energy effective string theory." Thesis, University of Sussex, 1998. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.390080.

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Coletti, Erasmo. "Low energy effective actions and tachyon dynamics from string field theory." Thesis, Massachusetts Institute of Technology, 2005. http://hdl.handle.net/1721.1/32300.

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Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Physics, 2005.
Includes bibliographical references (p. 133-144).
In this thesis we show how to calculate off-shell low energy effective actions and how to study the dynamics of the tachyon from string field theory. We discuss how to obtain an effective action for the massless field and we explain how to relate it to well known results. We then study the tachyon dynamics both in cubic and in boundary string field theory.
by Erasmo Coletti.
Ph.D.

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Roderick, Christopher. "The thermodynamic first law for black holes in low-energy string theory." Thesis, McGill University, 1995. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=23293.

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The prescription of R. M. Wald for determining a thermodynamic first law for stationary, axisymmetric, asymptotically flat black holes in general theories of gravity is applied to the effective Lagrangian for the bosonic sector of low-energy heterotic super-string theory. It is found that the presence of the gauge fields necessitates an alteration of the prescription. Specifically, the Lie derivatives with respect to the Killing vector of the gauge fields are non-vanishing. This introduces new terms which ensure gauge-invariance of the final result in a natural way.

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Azizi, Azizollah. "On monopoles in low energy string theory and non-abelian particle trajectories." Thesis, Durham University, 1997. http://etheses.dur.ac.uk/4800/.

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This thesis is mainly concerned with monopoles. First, the existence of monopoles and their behaviour in the Yang-Mills-Higgs theories, and in parallel, the instanton solutions of the Yang-Mills fields are explained. One part of this work is about monopoles and instantons in low-energy string theory. A general instanton solution for the heterotic string theory is obtained by using the ADHM construction for the classical subgroups of the string gauge group. In this direction, the embedding of subgroups and a general formula for the dilaton are explained. In the next topic of this part, the i/-monopole and its generalisation to different subgroups of the string gauge group are discussed. In the second part, the motion of the Yang-Mills particles in the Yang-Mills- Higgs fields are studied. Planar orbits are observed for a particle in a monopole field when the Higgs field contribution is neglected. The planar orbits are studied further with some numerical analysis of the equations of motion. By regarding the Higgs field contribution, a complete set of equations are worked out for the particle and fields. In this scenario, the planar motions as well as three-dimensional bounded motions are studied. At the end, the force exerted by the non-abelian Yang-Mills-Higgs fields on a particle with non-abelian charge is explored.

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9

Gubay, Finn. "Higher derivative corrections to the low-energy effective action of type IIA/B string theory and M-theory." Thesis, King's College London (University of London), 2012. https://kclpure.kcl.ac.uk/portal/en/theses/higher-derivative-corrections-to-the-lowenergy-e-ective-action-of-type-iiab-string-theory-and-mtheory(775e2c55-d7de-4d43-89f4-b995fa13b640).html.

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The type IIA and type IIB supergravity actions in d = 10 dimensions are the low-energy effective theories of type IIA and IIB string theory. In addition, the unique eleven dimensional supergravity theory is the low-energy effective action of M-theory. Higher order corrections to the low-energy effective actions of these supergravity theories contain perturbative and non-perturbative effects of the corresponding string theories and, as such, understanding the structure of the higher order terms provides an insight into the perturbative and non-perturbative formulations of string theory. The U-duality groups of type IIA/B string theory and M-theory compactified on a torus to d < 10 dimensions puts powerful constraints on the higher derivative terms in the effective actions of these theories. In particular, the higher derivative terms in d = 10 - n dimensions are required to possess coefficient functions that transform as En+1 (Z) automorphic forms. These automorphic forms are complex mathematical objects that encode all the perturbative and non-perturbative features of type II string theory and M-theory compactified on an torus to d dimensions. We investigate the structure of the higher derivative terms and their associated automorphic forms in the effective actions of type IIA/B string theory and M-theory. Constraints on automorphic forms appearing in d dimensions by dimensional reduction of arbitrary higher derivative terms in the type IIA, type IIB and M-theory effective actions to d dimensions are obtained. The behaviour of higher derivative terms in the d dimensional type II effective action in specic limits of various parameters is analysed. We derive a group theoretical interpretation for each limit. A general formula is given for a class of automorphic forms in these limits.

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10

Taylor, Stephen M. "On Stability and Evolution of Solutions in General Relativity." Diss., CLICK HERE for online access, 2007. http://contentdm.lib.byu.edu/ETD/image/etd2033.pdf.

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Books on the topic "Supergravity; Low energy; String theory"

1

Waldram, Daniel John. Charged stringlike solutions in low-energy heterotic string theory. 1993.

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Book chapters on the topic "Supergravity; Low energy; String theory"

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Blumenhagen, Ralph, Dieter Lüst, and Stefan Theisen. "String Scattering Amplitudes and Low Energy Effective Field Theory." In Basic Concepts of String Theory, 585–639. Berlin, Heidelberg: Springer Berlin Heidelberg, 2012. http://dx.doi.org/10.1007/978-3-642-29497-6_16.

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DERENDINGER, J. P., L. E. IBÁŃEZ, and H. P. NILLES. "On the Low Energy d = 4, N = 1 Supergravity Theory Extracted from the d = 10, N = 1 Superstring." In Current Physics–Sources and Comments, 467–72. Elsevier, 1988. http://dx.doi.org/10.1016/b978-0-444-87100-8.50039-2.

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Conference papers on the topic "Supergravity; Low energy; String theory"

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Dine, Michael. "String theory: Lessons for low energy physics?" In Proceedings of the XXVI International Conference on High Energy Physics. Vol. II. AIP, 1992. http://dx.doi.org/10.1063/1.43432.

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2

Kobayashi, Tatsuo. "Symmetries and vanishing couplings in string-derived low energy effective field theory." In GUT2012. AIP, 2012. http://dx.doi.org/10.1063/1.4742099.

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Reports on the topic "Supergravity; Low energy; String theory"

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Preitschopf, Christian Richard. Two Exercises in Supersymmetry: A Low-Energy Supergravity Model and Free String Field Theory. Office of Scientific and Technical Information (OSTI), June 2018. http://dx.doi.org/10.2172/1454020.

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Preitschopf, C. R. Two exercises in supersymmetry: a low-energy supergravity model and free string field theory. Office of Scientific and Technical Information (OSTI), September 1986. http://dx.doi.org/10.2172/5213163.

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