31 citations · 51 across the 2 of their papers we have counts for
6 papers
Small to large Fermi surface transition in a single band model, using randomly coupled ancillas
Alexander Nikolaenko, Maria Tikhanovskaya, Subir Sachdev +1
We describe a solvable model of a quantum transition in a single band model involving a change in the size of the electron Fermi surface without any symmetry breaking. In a model w…
Excitation spectra of quantum matter without quasiparticles II: random - models
Maria Tikhanovskaya, Haoyu Guo, Subir Sachdev +1
We present numerical solutions of the spectral functions of - models with random and all-to-all exchange and global SU() spin rotation symmetry. The solutions are obtained…
Excitation spectra of quantum matter without quasiparticles I: Sachdev-Ye-Kitaev models
Maria Tikhanovskaya, Haoyu Guo, Subir Sachdev +1
We study the low frequency spectra of complex Sachdev-Ye-Kitaev (SYK) models at general densities. The analysis applies also to SU() magnets with random exchange at large . T…
On 1/N diagrammatics in the SYK model beyond the conformal limit
Irina Aref'eva, Mikhail Khramtsov, Maria Tikhanovskaya
In the present work we discuss aspects of the 1/N expansion in the SYK model, formulated in terms of the semiclassical expansion of the bilocal field path integral. We derive cutti…
Replica-nondiagonal solutions in the SYK model
Irina Aref'eva, Mikhail Khramtsov, Maria Tikhanovskaya +1
We study the SYK model in the large limit beyond the replica-diagonal approximation. First we show that there are exact replica-nondiagonal solutions of the saddle point equati…
Thermalization after holographic bilocal quench
Irina Ya. Aref'eva, Mikhail A. Khramtsov, Maria D. Tikhanovskaya
We study thermalization in the holographic (1+1)-dimensional CFT after simultaneous generation of two high-energy excitations in the antipodal points on the circle. The holographic…