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7 papers · 2 filters
Factorization and generalized *-products
Youngjai Kiem, Dong Hyun Park, Sangmin Lee
The generalized *-products, or the -products, appear both in the one-loop effective action of noncommutative Yang-Mills theories and in the coupling of a closed string to N op…
Global p-Brane World: A New Approach to Stable Mass Hierarchy
Sei-Hoon Moon, Soo-Jong Rey, Yoon-Bai Kim
We find a class of extremal black hole-like global p-brane in higher-dimensional gravity with a negative cosmological constant. The region inside the p-brane horizon possesses all…
Open string derivation of winding states in thermal noncommutative field theories
Youngjai Kiem, Dong Hyun Park, Haru-Tada Sato
The `winding state' behavior appears in the two-loop nonplanar contribution to the partition function in thermal noncommutative field theories. We derive this feature directly from…
Stretched strings and worldsheets with a handle
Youngjai Kiem, Dong Hyun Park, Haru-Tada Sato
In the presence of the constant background NS two-form gauge field, we construct the worldsheet partition functions, bulk propagators and boundary propagators for the worldsheets w…
Deformed fields and Moyal construction of deformed super Virasoro algebra
R. Kemmoku, H. T. Sato
Studied is the deformation of super Virasoro algebra proposed by Belov and Chaltikhian. Starting from abstract realizations in terms of the FFZ type generators, various connections…
Higher Derivative CP(N) Model and Quantization of the Induced Chern-Simons Term
Taichi Itoh, Phillial Oh
We consider higher derivative CP(N) model in 2+1 dimensions with the Wess-Zumino-Witten term and the topological current density squared term. We quantize the theory by using the a…