The Experts below are selected from a list of 1168566 Experts worldwide ranked by ideXlab platform
K S Viswanathan - One of the best experts on this subject based on the ideXlab platform.
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conformal Field Theory correlators from classical scalar Field Theory on ads d 1
Physical Review D, 1998Co-Authors: Wolfgang Mueck, K S ViswanathanAbstract:We use the correspondence between scalar Field Theory on $AdS_{d+1}$ and a conformal Field Theory on $R^d$ to calculate the 3- and 4-point functions of the latter. The classical scalar Field Theory action is evaluated at tree level.
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conformal Field Theory correlators from classical scalar Field Theory on anti de sitter space
Physical Review D, 1998Co-Authors: Wolfgang Muck, K S ViswanathanAbstract:We use the correspondence between scalar Field Theory on $AdS_{d+1}$ and a conformal Field Theory on $R^d$ to calculate the 3- and 4-point functions of the latter. The classical scalar Field Theory action is evaluated at tree level.
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conformal Field Theory correlators from classical scalar Field Theory on anti de sitter space
Physical Review D, 1998Co-Authors: Wolfgang Muck, K S ViswanathanAbstract:We use the correspondence between scalar Field Theory on ${\mathrm{AdS}}_{d+1}$ and a conformal Field Theory on ${R}^{d}$ to calculate the first-order contributions to the 3- and 4-point functions of the latter.
Wolfgang Muck - One of the best experts on this subject based on the ideXlab platform.
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conformal Field Theory correlators from classical scalar Field Theory on anti de sitter space
Physical Review D, 1998Co-Authors: Wolfgang Muck, K S ViswanathanAbstract:We use the correspondence between scalar Field Theory on $AdS_{d+1}$ and a conformal Field Theory on $R^d$ to calculate the 3- and 4-point functions of the latter. The classical scalar Field Theory action is evaluated at tree level.
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conformal Field Theory correlators from classical scalar Field Theory on anti de sitter space
Physical Review D, 1998Co-Authors: Wolfgang Muck, K S ViswanathanAbstract:We use the correspondence between scalar Field Theory on ${\mathrm{AdS}}_{d+1}$ and a conformal Field Theory on ${R}^{d}$ to calculate the first-order contributions to the 3- and 4-point functions of the latter.
G Sardanashvily - One of the best experts on this subject based on the ideXlab platform.
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covariant hamiltonian Field Theory path integral quantization
International Journal of Theoretical Physics, 2004Co-Authors: D Bashkirov, G SardanashvilyAbstract:The Hamiltonian counterpart of classical Lagrangian Field Theory is covariant Hamiltonian Field Theory where momenta correspond to derivatives of Fields with respect to all world coordinates. In particular, classical Lagrangian and covariant Hamiltonian Field theories are equivalent in the case of a hyperregular Lagrangian, and they are quasi-equivalent if a Lagrangian is almost-regular. In order to quantize covariant Hamiltonian Field Theory, one usually attempts to construct and quantize a multisymplectic generalization of the Poisson bracket. In the present work, the path integral quantization of covariant Hamiltonian Field Theory is suggested. We use the fact that a covariant Hamiltonian Field system is equivalent to a certain Lagrangian system on a phase space which is quantized in the framework of perturbative quantum Field Theory. We show that, in the case of almost-regular quadratic Lagrangians, path integral quantizations of associated Lagrangian and Hamiltonian Field systems are equivalent.
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covariant hamiltonian Field Theory path integral quantization
arXiv: High Energy Physics - Theory, 2004Co-Authors: D Bashkirov, G SardanashvilyAbstract:The Hamiltonian counterpart of classical Lagrangian Field Theory is covariant Hamiltonian Field Theory where momenta correspond to derivatives of Fields with respect to all world coordinates. In particular, classical Lagrangian and covariant Hamiltonian Field theories are equivalent in the case of a hyperregular Lagrangian, and they are quasi-equivalent if a Lagrangian is almost-regular. In order to quantize covariant Hamiltonian Field Theory, one usually attempts to construct and quantize a multisymplectic generalization of the Poisson bracket. In the present work, the path integral quantization of covariant Hamiltonian Field Theory is suggested. We use the fact that a covariant Hamiltonian Field system is equivalent to a certain Lagrangian system on a phase space which is quantized in the framework of perturbative Field Theory. We show that, in the case of almost-regular quadratic Lagrangians, path integral quantizations of associated Lagrangian and Hamiltonian Field theories are equivalent.
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connections in classical and quantum Field Theory
2000Co-Authors: Luigi Mangiarotti, G SardanashvilyAbstract:Elementary gauge Theory geometry of fiber bundles geometric gauge Theory gravitation topological invariants in Field Theory jet bundle formalism Hamiltonian formalism in Field Theory infinite-dimensional bundles.
Ashoke Sen - One of the best experts on this subject based on the ideXlab platform.
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Background Independence of Closed Superstring Field Theory
Journal of High Energy Physics, 2018Co-Authors: Ashoke SenAbstract:Given a family of world-sheet superconformal Field theories related by marginal deformation, we can formulate superstring Field Theory based on any of these world-sheet theories. Background independence is the statement that these different superstring Field theories are related to each other by Field redefinition. We prove background independence of closed superstring Field Theory.
Alexander Schmidt - One of the best experts on this subject based on the ideXlab platform.
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tame class Field Theory for arithmetic schemes
Inventiones Mathematicae, 2005Co-Authors: Alexander SchmidtAbstract:Takagi's class Field Theory gave a decription of the abelian extensions of a number Field $K$ in terms of ideal groups in $K$. In the 1980s, {\it K. Kato} and {\it S. Saito} [``Global class Field Theory of arithmetic schemes". Applications of algebraic K-Theory to algebraic geometry and number Theory, Proc. AMS-IMS-SIAM Joint Summer Res. Conf., Boulder/Colo. 1983, Part I, Contemp. Math. 55, 255--331 (1986; Zbl 0614.14001)] were able to generalize class Field Theory to higher dimensional Fields, and to describe their abelian extensions using a generalized idele class group whose definition is quite involved. In the case of unramified extensions, however, the class Fields can be described geometrically using Chow groups. For Fields of positive characteristic, a similarly geometric description for tamely ramified extensions was obtained by the author and {\it M.~Spiess} [J. Reine Angew. Math. 527, 13--36 (2000; Zbl 0961.14013)]. In this article, an analogous result is proved for the case of mixed characteristic.
