156 citations · 323 across the 13 of their papers we have counts for
6 papers · 1 filter
Quantum Spin Current Induced Through Optical Fields
Xiong-Jun Liu, Xin Liu, L. C. Kwek +2
We propose a scheme to generate quantum spin current via optical dipole transition process. By coupling a three-level system based on the spin states of charged particles (electron…
Quantitative conditions do not guarantee the validity of the adiabatic approximation
D. M. Tong, K. Singh, L. C. Kwek +1
In this letter, we point out that the widely used quantitative conditions in the adiabatic theorem are insufficient in that they do not guarantee the validity of the adiabatic appr…
Repeat-Until-Success quantum computing using stationary and flying qubits
Yuan Liang Lim, Sean D. Barrett, Almut Beige +2
We introduce an architecture for robust and scalable quantum computation using both stationary qubits (e.g. single photon sources made out of trapped atoms, molecules, ions, quantu…
Violating Bell Inequalities Maximally for Two -Dimensional Systems
Jing-Ling Chen, Chunfeng Wu, L. C. Kwek +2
We investigate the maximal violation of Bell inequalities for two -dimensional systems by using the method of Bell operator. The maximal violation corresponds to the maximal eig…
Bell inequalities for three particles
Jing-Ling Chen, Chunfeng Wu, L. C. Kwek +1
We present tight Bell inequalities expressed by probabilities for three four- and five-dimensional systems. The tight structure of Bell inequalities for three -dimensional syste…
Quantum Tomographic Cryptography with a Semiconductor Single Photon Source
Dagomir Kaszlikowski, L. C. Kwek, Lim Jenn Yang +2
In this paper we analyze the security of the so-called quantum tomographic cryptography with the source producing entangled photons via an experimental scheme proposed in Phys. Rev…