57 citations · 76 across the 9 of their papers we have counts for
11 papers
Topological chirality of dissipative limit cycles in an open Dicke model
Nikolay Yegovtsev, Sayan Choudhury, W. Vincent Liu
In an open, -symmetric Dicke model with chiral atom-cavity couplings, we show that dissipation drives two limit-cycle phases of opposite chirality in the thermodynamic limit,…
Robust continuous symmetry breaking and multiversality in the chiral Dicke model
Nikolay Yegovtsev, Sayan Choudhury, W. Vincent Liu
The Dicke model (DM) serves as a paradigm for understanding collective light-matter interactions. We introduce the chiral Dicke model, a generalization where an atomic ensemble cou…
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…
Heavy Fermi polarons in a one-dimensional harmonic trap
Nikolay Yegovtsev
We provide an analytically tractable toy model of an infinitely heavy impurity interacting with the spin-polarized gas of bath fermions via a contact potential in 1D and placed in…
Fermi polarons with the finite-range fermion-impurity interactions
Nikolay Yegovtsev
We study a problem of an infinitely heavy impurity introduced into a polarized Fermi gas, which can be solved exactly with the help of Fumi's theorem. We consider the regime of fin…
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…