TY - BOOK

T1 - Enhancement of optical nonlinearities with stationary light

AU - Iakoupov, Ivan

PY - 2016

Y1 - 2016

N2 - Stationary light arises in atomic ensembles with certain energy levelconfigurations, when two counter-propagating classical drives (lasers) areapplied. Probe light coupled to a different energy level transition than theclassical drives can be completely stopped, while still retaining its lightcharacter. We will be interested in the regime of stationary light, where theprobe light still propagates through the atomic ensemble, but extremely slowly.In other words, probe field has a very low group velocity, which increases itsinteraction time with any optical nonlinearity. The enhancement of theeffective nonlinear strength by stationary light is then used to propose atwo-qubit (controlled-phase) quantum gate for the optical photons, which can inprinciple work deterministically. Before discussing stationary light and itsapplication, we also analyse the different fidelity measures that could beapplied to the proposed gate (and related proposals).

AB - Stationary light arises in atomic ensembles with certain energy levelconfigurations, when two counter-propagating classical drives (lasers) areapplied. Probe light coupled to a different energy level transition than theclassical drives can be completely stopped, while still retaining its lightcharacter. We will be interested in the regime of stationary light, where theprobe light still propagates through the atomic ensemble, but extremely slowly.In other words, probe field has a very low group velocity, which increases itsinteraction time with any optical nonlinearity. The enhancement of theeffective nonlinear strength by stationary light is then used to propose atwo-qubit (controlled-phase) quantum gate for the optical photons, which can inprinciple work deterministically. Before discussing stationary light and itsapplication, we also analyse the different fidelity measures that could beapplied to the proposed gate (and related proposals).

UR - https://soeg.kb.dk/permalink/45KBDK_KGL/fbp0ps/alma99122314274805763

M3 - Ph.D. thesis

BT - Enhancement of optical nonlinearities with stationary light

PB - The Niels Bohr Institute, Faculty of Science, University of Copenhagen

ER -