Absorption of Fixed scalars and the D-brane Approach to Black Holes Export

@article{citeulike:4860710, abstract = {We calculate the emission and absorption rates of fixed scalars by the near-extremal five-dimensional black holes that have recently been modeled using intersecting D-branes. We find agreement between the semi-classical and D-brane computations. At low energies the fixed scalar absorption cross-section is smaller than for ordinary scalars and depends on other properties of the black hole than just the horizon area. In the D-brane description, fixed scalar absorption is suppressed because these scalars must split into at least four, rather than two, open strings running along the D-brane. Consequently, this comparison provides a more sensitive test of the effective string picture of the D-brane bound state than does the cross-section for ordinary scalars. In particular, it allows us to read off the value of the effective string tension. That value is precisely what is needed to reproduce the near-extremal 5-brane entropy.}, archivePrefix = {arXiv}, author = {Callan, C. G. and Gubser, S. S. and Klebanov, I. R. and Tseytlin, A. A.}, citeulike-article-id = {4860710}, citeulike-linkout-0 = {http://arxiv.org/abs/hep-th/9610172}, citeulike-linkout-1 = {http://arxiv.org/pdf/hep-th/9610172}, day = {26}, eprint = {hep-th/9610172}, keywords = {absorption, bh, d-branes, scalar}, month = {Dec}, posted-at = {2009-06-15 17:08:46}, priority = {0}, title = {Absorption of Fixed scalars and the D-brane Approach to Black Holes}, url = {http://arxiv.org/abs/hep-th/9610172}, year = {1996} }

TY - JOUR ID - citeulike:4860710 L3 - citeulike-article-id:4860710 N2 - We calculate the emission and absorption rates of fixed scalars by the near-extremal five-dimensional black holes that have recently been modeled using intersecting D-branes. We find agreement between the semi-classical and D-brane computations. At low energies the fixed scalar absorption cross-section is smaller than for ordinary scalars and depends on other properties of the black hole than just the horizon area. In the D-brane description, fixed scalar absorption is suppressed because these scalars must split into at least four, rather than two, open strings running along the D-brane. Consequently, this comparison provides a more sensitive test of the effective string picture of the D-brane bound state than does the cross-section for ordinary scalars. In particular, it allows us to read off the value of the effective string tension. That value is precisely what is needed to reproduce the near-extremal 5-brane entropy. TI - Absorption of Fixed scalars and the D-brane Approach to Black Holes KW - absorption KW - bh KW - d-branes KW - scalar AU - Callan, CG AU - Gubser, SS AU - Klebanov, IR AU - Tseytlin, AA PY - 1996/Dec/26/ UR - http://arxiv.org/abs/hep-th/9610172 ER -