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hep-th2018★ 1 cited
AC conductivities of a holographic Dirac semimetal
Gianluca Grignani, Andrea Marini, Lorenzo Papini +1
We use the AdS/CFT correspondence to compute the AC conductivities for a (2+1)-dimensional system of massless fundamental fermions coupled to (3+1)-dimensional Super Yang-Mills the…
gr-qc2018★ 15 cited
On the existence of the Blandford-Znajek monopole for a slowly rotating Kerr black hole
Gianluca Grignani, Troels Harmark, Marta Orselli
The Blandford-Znajek monopole is a conjectured solution of force-free electrodynamics in the vicinity of a slowly rotating Kerr black hole, supposedly defined as a perturbation in…