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hep-th2006★ 37 cited
Noncommutative -brane, Black Holes and Attractor Mechanism
Supriya Kar, Sumit Majumdar
We revisit the 4D generalized black hole geometries, obtained by us [1], with a renewed interest, to unfold some aspects of effective gravity in a noncommutative D3-brane formalism…
hep-th2005
Black Hole Geometries in Noncommutative String Theory
Supriya Kar, Sumit Majumdar
We obtain a generalized Schwarzschild (GS-) and a generalized Reissner-Nordstrom (GRN-) black hole geometries in (3+1)-dimensions, in a noncommutative string theory. In particular,…
hep-th2005
Scattering of Noncommutative Strings: A Note on Signature Change at Planck Scale
Supriya Kar, Sumit Majumdar
We compute the S-matrix, for the scattering of two string states, on a noncommutative D3-brane in a path integral formalism. Our analysis attempts to resolve the issue of ``imagina…