380 citations · 3.2k across the 80 of their papers we have counts for
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High-frequency transport and zero-sound in an array of SYK quantum dots
A. V. Lunkin, M. V. Feigel'man
We study an array of strongly correlated quantum dots of complex SYK type and account for the effects of quadratic terms added to the SYK Hamiltonian; both local terms and inter-do…
Non-equilibrium Sachdev-Ye-Kitaev model with quadratic perturbation
A. V. Lunkin, M. V. Feigel'man
We consider a non-equilibrium generalization of the mixed SYK+SYK model and calculate the energy dissipation rate that results due to periodic modulation of random q…
Perturbed Sachdev-Ye-Kitaev model: a polaron in the hyperbolic plane
A. V. Lunkin, A. Yu. Kitaev, M. V. Feigel'man
We study the SYK model with a weak SYK term of magnitude beyond the simplest perturbative limit considered previously. For intermediate values of the perturbation stren…
SYK model with quadratic perturbations: the route to a non-Fermi-liquid
A. V. Lunkin, K. S. Tikhonov, M. V. Feigel'man
We study the stability of the SYK model with a large but finite number of fermions with respect to a perturbation, quadratic in fermionic operators. We develop analytic per…
Long-range spin correlations in a honeycomb spin model with magnetic field
A. V. Lunkin, K. S. Tikhonov, M. V. Feigel'man
We consider spin- model on the honeycomb lattice in the presence of weak magnetic field . Such a perturbation treated in the second order over leads to the…
Power-law spin correlations in a perturbed honeycomb spin model
Kostantin S. Tikhonov, Mikhail V. Feigel'man, Alexei Yu. Kitaev
We consider spin- model on the honeycomb lattice~\cite{Kitaev06} in presence of a weak magnetic field . Such a perturbation destroys exact integrability of…