bound states of D4-branes with D8-branes. A special case of the general phenomenon of Dp-D(p+4)-brane bound states.
As a black brane supergravity solution: Brandhuber-Oz 99, Nastase 03, Sec. 2 and 3, BSU 09, Van Pol 15, Sec 5, Dibitetto-Petri 18
The D4-D8 system is the intersecting D-brane model underlying the Witten-Sakai-Sugimoto model for holographic QCD
graphics grabbed from Erlich 09, section 1.1
graphics grabbed from Rebhan 14
Generally, due to the higher WZW term in the Green-Schwarz sigma model for D(p+4)-branes, Yang-Mills instantons in the Chan-Paton gauge field on -branes are equivalently Dp-D(p+4)-brane bound states (see e.g. Polchinski 96, 5.4, Tong 05, 1.4).
In terms of holographic QCD as above these instantons correspond to baryon-bound states (Sakai-Sugimoto 04, 5.7).
graphics grabbed from Sugimoto 16
brane intersections/bound states/wrapped branes/polarized branes
D-branes and anti D-branes form bound states by tachyon condensation, thought to imply the classification of D-brane charge by K-theory
intersecting D-branes/fuzzy funnels:
Dp-D(p+6) brane bound state
As black brane supergravity-solutions:
Andreas Brandhuber, Yaron Oz, The D4-D8 Brane System and Five Dimensional Fixed Points, Phys.Lett. B460:307-312, 1999 (arXiv:hep-th/9905148)
Horatiu Nastase, Sections 2, 3 of: On Dp-Dp+4 systems, QCD dual and phenomenology (arXiv:hep-th/0305069)
Pierre Binetruy, Misao Sasaki, Kunihito Uzawam, Dynamical D4-D8 and D3-D7 branes in supergravity, Phys. Rev. D80:026001, 2009 (arXiv:0712.3615)
Oren Bergman, Diego Rodriguez-Gomez, Section 2.3 of: 5d quivers and their duals, J. High Energ. Phys. (2012) 2012: 171 (arXiv:1206.3503)
Bert Van Pol, Section 5 of: Aspects of D-branes in supergravity, thesis 2015 (pdf, pdf)
Giuseppe Dibitetto, Nicolò Petri, Surface defects in the D4-D8 brane system, J. High Energ. Phys. (2019) 2019: 193 (arXiv:1807.07768)
Minwoo Suh, D4-D8-branes wrapped on a manifold with non-constant curvature (arXiv:2108.08326)
blackD4-D8-brane bound states in massive type IIA string theory, with defect D2-D6-brane bound states inside them realizing AdS3-CFT2 “inside” AdS7-CFT6:
Giuseppe Dibitetto, Nicolò Petri, Surface defects in the D4 − D8 brane system, JHEP 01 (2019) 193 (arxiv:1807.07768)
Giuseppe Dibitetto, Nicolò Petri, vacua and surface defects in massive IIA (arxiv:1904.02455)
With application to geometric engineering of QCD (“holographic QCD”, such as the Witten-Sakai-Sugimoto model):
David Morrison, Nathan Seiberg, Extremal Transitions and Five-Dimensional Supersymmetric Field Theories, Nucl. Phys.B483:229-247, 1997 (arXiv:hep-th/9609070)
Hee-Cheol Kim, Sung-Soo Kim, Kimyeong Lee, 5-dim Superconformal Index with Enhanced En Global Symmetry, JHEP 1210 (2012) 142 (arXiv:1206.6781)
Chiung Hwang, Joonho Kim, Seok Kim, Jaemo Park, General instanton counting and 5d SCFT (arxiv:1406.6793)
Review:
As a model for baryons:
Among review of the Witten-Sakai-Sugimoto model:
Joshua Erlich, How Well Does AdS/QCD Describe QCD?, Int. J. Mod. Phys.A25:411-421,2010 (arXiv:0908.0312)
Anton Rebhan, The Witten-Sakai-Sugimoto model: A brief review and some recent results, 3rd International Conference on New Frontiers in Physics, Kolymbari, Crete, 2014 (arXiv:1410.8858)
The argument that Yang-Mills instantons in the Chan-Paton gauge field on a D(p+4)-brane are equivalent to Dp-D(p+4) brane bound states goes back to
Edward Witten, Small Instantons in String Theory, Nucl. Phys. B460:541-559, 1996 (arXiv:hep-th/9511030)
Michael Douglas, Gauge Fields and D-branes, J. Geom. Phys. 28 (1998) 255-262 (arXiv:hep-th/9604198)
Review is in:
Joseph Polchinski, Section 5.4 of: TASI Lectures on D-Branes (arXiv:hep-th/9611050)
David Tong, Section 1.4 of TASI Lectures on Solitons (hep-th/0509216)
Discussion specifically of D0-D4-brane bound states:
with emphasis to the resulting configuration spaces of points, as in
Discussion specifically of D1-D5-brane bound states
Last revised on August 30, 2021 at 12:30:39. See the history of this page for a list of all contributions to it.