39 citations · 233 across the 13 of their papers we have counts for
13 papers
Equilibrium dynamics of infinite-range quantum spin glasses in a field
Maria Tikhanovskaya, Subir Sachdev, Rhine Samajdar
We determine the low-energy spectrum and Parisi replica symmetry breaking function for the spin glass phase of the quantum Ising model with infinite-range random exchange interacti…
Universality of the cross entropy in symmetric monitored quantum circuits
Maria Tikhanovskaya, Ali Lavasani, Matthew P. A. Fisher +1
The linear cross-entropy (LXE) has been recently proposed as a scalable probe of the measurement-driven phase transition between volume- and area-law-entangled phases of pure-state…
Critical metallic phase in the overdoped random - model
Maine Christos, Darshan G. Joshi, Subir Sachdev +1
We investigate a model of electrons with random and all-to-all hopping and spin exchange interactions, with a constraint of no double occupancy. The model is studied in a Sachdev-Y…
Maximal quantum chaos of the critical Fermi surface
Maria Tikhanovskaya, Subir Sachdev, Aavishkar A. Patel
We investigate the many-body quantum chaos of non-Fermi liquid states with Fermi surfaces in two spatial dimensions by computing their out-of-time-order correlation functions. Usin…
Electronic spectra with paramagnon fractionalization in the single band Hubbard model
Eric Mascot, Alexander Nikolaenko, Maria Tikhanovskaya +3
We examine the spectral properties of a recently proposed theory of the intermediate temperature pseudogap metal phase of the cuprates. We show that this theory can be obtained fro…
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…
Holographic Dual to Conical Defects III: Improved Image Method
I. Ya. Aref'eva, M. A. Khramtsov, M. D. Tikhanovskaya
The geodesics prescription in holographic approach in Lorentzian signature is valid only for geodesics which connect spacelike-separated points at the boundary, since there are no…
Holographic Dual to Conical Defects: I. Moving Massive Particle
D. S. Ageev, I. Ya. Aref'eva, M. D. Tikhanovskaya
We study correlation functions of scalar operators on the boundary of the space deformed by moving massive particles in the context of the AdS/CFT duality. To calculate two…