Holographic spectral functions and diffusion constants for fundamental matter
The holographic dual of large-N c super-Yang-Mills coupled to a small number of flavours of fundamental matter, N f << N c, is described by N f probe D7-branes in the gravitational background of N c black D3-branes. This system undergoes a first order phase transition characterised by...
| Main Authors: | , , |
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| 格式: | Journal article |
| 语言: | English |
| 出版: |
2007
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| 总结: | The holographic dual of large-N c super-Yang-Mills coupled to a small number of flavours of fundamental matter, N f << N c, is described by N f probe D7-branes in the gravitational background of N c black D3-branes. This system undergoes a first order phase transition characterised by the 'melting' of the mesons. We study the high temperature phase in which the D7-branes extend through the black hole horizon. In this phase, we compute the spectral function for vector, scalar and pseudoscalar modes on the D7-brane probe. We also compute the diffusion constant for the flavour currents. © SISSA 2007. |
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