12 citations · 21 across the 9 of their papers we have counts for
3 papers · 1 filter
Topological bound states in a lattice of rings with nearest-neighbour interactions
Yunjia Zhai, Ayaka Usui, Anselmo M. Marques +2
We study interaction-induced bound states in a system of ultracold bosons loaded into the states with orbital angular momentum in a one-dimensional staggered lattice of rings. We c…
Enhanced strong interaction effect in synthetic spin-orbit coupling with mixed spin symmetry
Ayaka Usui, Abel Rojo-Francàs, James Schloss +1
Synthetic spin-orbit coupling in cold atoms couples the pseudo-spin and spatial degrees of freedom, and therefore the inherent spin symmetry of the system plays an important role.…
Quantum probe spectroscopy for cold atomic systems
Ayaka Usui, Berislav Buča, Jordi Mur-Petit
We study a two-level impurity coupled locally to a quantum gas on an optical lattice. For state-dependent interactions between the impurity and the gas, we show that its evolution…