545 citations · 4.7k across the 79 of their papers we have counts for
80 papers
Unified theory of attractive and repulsive polarons in one-dimensional Bose gas
Nikolay Yegovtsev, T. Alper Yoğurt, Matthew T. Eiles +1
We present a unified description of attractive and repulsive polarons, formed in a one-dimensional Bose gas hosting an impurity particle, by obtaining all ground and excited state…
Nontrivial saddle points for spectral form factors of flat band superconductors
Sankalp Gaur, Emil A. Yuzbashyan, Victor Gurarie
We derive the spectral form factor of a flat band superconductor in two different ways. In the first approach, we diagonalize the Hamiltonian of this system exactly and numerically…
Exact results for heavy unitary Bose polarons
Nikolay Yegovtsev, Grigori E. Astrakharchik, Pietro Massignan +1
We consider the problem of unitary Bose polarons, i.e., impurities interacting via a potential with infinite scattering length with a bath of weakly interacting bosons. We provide…
Effective mass and interaction energy of heavy Bose polarons at unitarity
Nikolay Yegovtsev, Victor Gurarie
We study the motion of a heavy impurity immersed in a weakly interacting BEC using the Gross-Pitaevskii equation (GPe). We construct a perturbative solution to the GPe in powers of…
Spectral form factors of unconventional superconductors
Sankalp Gaur, Victor Gurarie
We show that spectral form factors of unconventional gapped superconductors have singularities occurring periodically in time. These are the superconductors whose gap function vani…
Singularities in the Loschmidt echo of quenched topological superconductors
Sankalp Gaur, Victor Gurarie, Emil A. Yuzbashyan
We study the Loschmidt echo in the quenched two-dimensional -wave topological superconductor. We find that if this superconductor is quenched out of the critical point separatin…