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![[Figure 2]](vv5082fig2mag.jpg)
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Figure 2
Experimental (a) and theoretical (b) spectral function of doped graphene. The bare band structure in this cut of momentum space [yellow lines in (b)] consists of two linear bands crossing at a single point, the so-called Dirac crossing. The actual ARPES spectral function in (a) is far more complicated, consisting of four branches (two indicated by black dashed lines) indicating that there are multiple excitations created by the ARPES optical transition. These modes are described as propagating holes either undressed or dressed with plasmons. Ultimately these modes are a consequence of the electron–electron interaction as predicted by GW theory in (b). [Results adapted from Bostwick et al. (2010  ). Science, 328, 999–1002. Reprinted with permission from AAAS.] |
![[Figure 2]](vv5082fig2.jpg)
 | JOURNAL OF SYNCHROTRON RADIATION |
ISSN: 1600-5775
