Strongly Correlated Metal Built from Sachdev-Ye-Kitaev Models

Prominent systems like the high-{T}_{c}cuprates and heavy fermions display intriguing features going beyond the quasiparticle description. The Sachdev-Ye-Kitaev (SYK) model describes a (0+1)\mathrm{D}quantum cluster with random all-to-all four-fermion interactions among Nfermion modes which becomes exactly solvable as N\ensuremath{\rightarrow}\ensuremath{\infty} exhibiting a zero-dimensional non-Fermi-liquid with emergent conformal...