Zobrazeno 1 - 10
of 113
pro vyhledávání: '"Ovrut, B."'
Publikováno v:
Advances in Theoretical and Mathematical Physics 19 (2015) 531-611
In this paper we work out some basic results concerning heterotic string compactifications on stacks and, in particular, gerbes. A heterotic string compactification on a gerbe can be understood as, simultaneously, both a compactification on a space w
Externí odkaz:
http://arxiv.org/abs/1307.2269
Autor:
Brelidze, T., Ovrut, B.
Publikováno v:
JHEP 1007:077,2010
E_{8} X E_{8} heterotic string and M-theory, when compactified on smooth Calabi-Yau manifolds with SU(4) vector bundles, can give rise to softly broken N=1 supersymmetric theories with the exact matter spectrum of the MSSM, including three right-hand
Externí odkaz:
http://arxiv.org/abs/1003.0234
Autor:
Komatsu, E., Afshordi, N., Bartolo, N., Baumann, D., Bond, J. R., Buchbinder, E. I., Byrnes, C. T., Chen, X., Chung, D. J. H., Cooray, A., Creminelli, P., Dalal, N., Dore, O., Easther, R., Frolov, A. V., Gorski, K. M., Jackson, M. G., Khoury, J., Kinney, W. H., Kofman, L., Koyama, K., Leblond, L., Lehners, J. -L., Lidsey, J. E., Liguori, M., Lim, E. A., Linde, A., Lyth, D. H., Maldacena, J., Matarrese, S., McAllister, L., McDonald, P., Mukohyama, S., Ovrut, B., Peiris, H. V., Raeth, C., Riotto, A., Rodriguez, Y., Sasaki, M., Scoccimarro, R., Seery, D., Sefusatti, E., Seljak, U., Senatore, L., Shandera, S., Shellard, E. P. S., Silverstein, E., Slosar, A., Smith, K. M., Starobinsky, A. A., Steinhardt, P. J., Takahashi, F., Tegmark, M., Tolley, A. J., Verde, L., Wandelt, B. D., Wands, D., Weinberg, S., Wyman, M., Yadav, A. P. S., Zaldarriaga, M.
A new and powerful probe of the origin and evolution of structures in the Universe has emerged and been actively developed over the last decade. In the coming decade, non-Gaussianity, i.e., the study of non-Gaussian contributions to the correlations
Externí odkaz:
http://arxiv.org/abs/0902.4759
Publikováno v:
Int.J.Mod.Phys.A18:2995-3014,2003
It is shown that the twisted sector spectrum, as well as the associated Chern-Simons interactions, can be determined on M-theory orbifold fixed planes that do not admit gravitational anomalies. This is demonstrated for the seven-planes arising within
Externí odkaz:
http://arxiv.org/abs/hep-th/0011031
Publikováno v:
Int.J.Mod.Phys.A18:3273-3314,2003
We analyze the structure of heterotic M-theory on K3 orbifolds by presenting a comprehensive sequence of M-theoretic models constructed on the basis of local anomaly cancellation. This is facilitated by extending the technology developed in our previ
Externí odkaz:
http://arxiv.org/abs/hep-th/0010087
Publikováno v:
Nucl.Phys.B572:112-130,2000
We obtain new solutions where a string and a pp-wave lie in the common worldvolume directions of the non-standard intersection of two gauge 5-branes in the heterotic string. The two 5-branes are supported by independent SU(2) Yang-Mills instantons in
Externí odkaz:
http://arxiv.org/abs/hep-th/9909184
Publikováno v:
Nucl.Phys.B569:247-261,2000
We obtain new intersecting 5-brane, string and pp-wave solutions in the heterotic string on a torus and on a K3 manifold. In the former case the 5-brane is supported by Yang-Mills instantons, and in the latter case both the 5-brane and the string are
Externí odkaz:
http://arxiv.org/abs/hep-th/9903001
Akademický článek
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Autor:
Buchbinder, I. L., Ovrut, B. A.
This paper is a brief review of background field method and some of its applications in N=2 super Yang-Mills theories with a matter within harmonic superspace approach. A general structure of effective action is discussed, an absence of two-loop quan
Externí odkaz:
http://arxiv.org/abs/hep-th/9802156
Publikováno v:
Phys.Lett. B417 (1998) 61-71
The background field method for N=2 super Yang-Mills theories in harmonic superspace is developed. The ghost structure of the theory is investigated. It is shown that the ghosts include two fermionic real omega-hypermultiplets (Faddeev-Popov ghosts)
Externí odkaz:
http://arxiv.org/abs/hep-th/9704214