2011/12/31 by Ping Xiang, Marina Litinskaya, Roman V. Krems
Chemistry · Physics and Astronomy · #Biexciton #Cold Atom Physics and Bose-Einstein Condensates #Condensed matter physics #Electric field #Electron #Excitation #Exciton #Lattice (music) #Molecular physics #Optical lattice #Pairing #Physics #Polar #Polaron #Quantum mechanics #Quantum optics and atomic interactions #Quasiparticle #Spectroscopy and Laser Applications #cond-mat.mes-hall #quant-ph
paper · pdf · doi:10.1103/physreva.85.061401
published as Phys. Rev. A 85, 061401(R) (2012) · Some typos have been corrected in this version
arxiv created 2012/06/19 · openalex publication_date 2012/06/19 · arxiv updated 2012/06/20 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
Rotational excitation of polar molecules trapped in an optical lattice gives rise to rotational excitons. Here we show that nonlinear interactions of such excitons can be controlled by an electric field. The exciton-exciton interactions can be tuned to induce exciton pairing, leading to the formation of biexcitons. Tunable nonlinear interactions between excitons can be used for many applications ranging from the controlled preparation of entangled quasiparticles to the study of polaron interactions and the effects of nonlinear interactions on quantum energy transport in molecular aggregates.