Journeys from quantum optics to quantum technology

SM Barnett, A Beige, A Ekert, BM Garraway… - Progress in Quantum …, 2017 - Elsevier
Abstract Sir Peter Knight is a pioneer in quantum optics which has now grown to an
important branch of modern physics to study the foundations and applications of quantum …

Giant Kerr nonlinearity induced by interacting dark resonances

Y Niu, S Gong, R Li, Z Xu, X Liang - Optics letters, 2005 - opg.optica.org
A scheme for giant enhancement of the Kerr nonlinearity in a four-level system with double
dark resonances is proposed. Compared with that generated in a single-dark-resonance …

Matched slow optical soliton pairs via biexciton coherence in quantum dots

WX Yang, AX Chen, RK Lee, Y Wu - … Review A—Atomic, Molecular, and Optical …, 2011 - APS
We theoretically investigate the simultaneous formation and stable propagation of slow
optical soliton pairs in semiconductor quantum dots with a four-level biexciton-exciton …

Exchange of optical vortices using an electromagnetically-induced-transparency–based four-wave-mixing setup

HR Hamedi, J Ruseckas, G Juzeliūnas - Physical Review A, 2018 - APS
We propose a scheme to exchange optical vortices of slow light using the phenomenon of
electromagnetically induced transparency in a four-level double-Λ atom-light coupling …

Large Cross-Phase Modulation between Slow Copropagating Weak Pulses in

ZB Wang, KP Marzlin, BC Sanders - Physical review letters, 2006 - APS
We propose a scheme to generate double electromagnetically induced transparency and
optimal cross-phase modulation for two slow, copropagating pulses with matched group …

Enhanced Cross-Phase Modulation Based on a Double Electromagnetically<? format?> Induced Transparency in a Four-Level Tripod Atomic System

S Li, X Yang, X Cao, C Zhang, C Xie, H Wang - Physical review letters, 2008 - APS
We report experimental observations on the simultaneous electromagnetically induced
transparency (EIT) effects for probe and trigger fields (double EIT) as well as the enhanced …

Electromagnetically induced grating via enhanced nonlinear modulation by spontaneously generated coherence

RG Wan, J Kou, L Jiang, Y Jiang, JY Gao - Physical Review A—Atomic …, 2011 - APS
By investigating the third-order nonlinearity of a four-level ladder-type atomic system, it is
found that, with spontaneously generated coherence (SGC) present, the nonlinear …

Cross-Kerr nonlinearity between continuous-mode coherent states and single photons

B He, Q Lin, C Simon - Physical Review A—Atomic, Molecular, and Optical …, 2011 - APS
Weak cross-Kerr nonlinearities between single photons and coherent states are the basis for
many applications in quantum-information processing. These nonlinearities have so far …

Transfer of optical vortices in coherently prepared media

HR Hamedi, J Ruseckas, E Paspalakis, G Juzeliūnas - Physical Review A, 2019 - APS
We consider transfer of optical vortices between laser pulses carrying orbital angular
momentum in a cloud of cold atoms characterized by the Λ configuration of the atom-light …

Coherent control of light-induced torque on four-level tripod atom systems

A Mehdinejad - Scientific Reports, 2023 - nature.com
This paper investigates the manipulation of induced torque on a four-level tripod atom
system through the interaction with two vortex probe beams featuring spatial inhomogeneity …