Ramachandhran, B.Hu, HuiPu, Han2016-04-052016-04-052013Ramachandhran, B., Hu, Hui and Pu, Han. "Emergence of topological and strongly correlated ground states in trapped Rashba spin-orbit-coupled Bose gases." <i>Physical Review A,</i> 87, no. 3 (2013) American Physical Society: 033627. http://dx.doi.org/10.1103/PhysRevA.87.033627.https://hdl.handle.net/1911/88855We theoretically study an interacting few-body system of Rashba spin-orbit-coupled two-component Bose gases confined in a harmonic trapping potential. We solve the interacting Hamiltonian at large Rashba coupling strengths using an exact-diagonalization scheme, and obtain the ground-state phase diagram for a range of interatomic interactions and particle numbers. At small particle numbers, we observe that the bosons condense to an array of topological states with n+1/2 quantum angular momentum vortex configurations, where n=0,1,2,3,.... At large particle numbers, we observe two distinct regimes: at weaker-interaction strengths, we obtain ground states with topological and symmetry properties that are consistent with mean-field theory computations; at stronger-interaction strengths, we report the emergence of strongly correlated ground states.engArticle is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use.Journal articlehttp://dx.doi.org/10.1103/PhysRevA.87.033627