[19p-A32-1~17] 3.9 Optical quantum physics and technologies

1:45 PM - 2:00 PM JST(4:45 AM - 5:00 AM UTC)Presentation by Applicant for JSAP Young Scientists Presentation Award

[19p-A32-2] Quantum entanglement generation dynamics of SPDC output lights mediated by electron-phonon systems

〇(M1C)Aoi Okuda¹, Hiroaki Minamide², Kunio Ishida¹ (1.Utsunomiya Univ., 2.RIKEN)

Keywords:

entanglement,nonlinear optics,THz

We theoretically investigated quantum entanglement generation by the spontaneous parametric down-conversion (SPDC), taking into account the electron-phonon degrees of freedom. We numerically solved the time-dependent Schrödinger equation and calculated the generation process of quantum entanglement, and found that the conventional "perturbative" Hamiltonian overestimates the strength of the quantum entanglement. These results are useful for quantitative evaluation of quantum entanglement generation by SPDC.