Speaker
Oscar Henriksson
Description
Adherence to a strict top-down framework in holography
imposes tight constraints when computing for example
fermionic spectral weights. I will discuss some holographic
computations in finite density ABJM theory where these
constraints translate into interesting physical properties,
such as Fermi surfaces, without well-defined quasiparticles,
that become gapped when the U(1) charge symmetry is broken.
I then discuss the computation of the static charge
susceptibility in a particular finite density state of ABJM
theory, leading to a quantitative comparison between
fermionic and bosonic correlators made possible by the
top-down setup.
