activity
20012026
most citedSecurity of Quantum Key Distribution with entangled quNits

124 citations · 476 across the 18 of their papers we have counts for

collaborators

17 papers

quant-ph2026

Dephasing-Enhanced Response and Phase Transitions in Quantum Boltzmann Samplers

Yu-Xuan Zhang, Jing-Ling Chen, Leong-Chuan Kwek +1

Dephasing can drive a quantum Boltzmann sampler into an ordered phase while its programmed probability distribution remains disordered. We trace this transition to an enhanced cond…

quant-ph2025

Exactly Solvable Quantum Model with Spin-Dependent Coulomb Interaction

Jiang-Lin Zhou, Yu-Xuan Zhang, Choo Hiap Oh +1

In this work, we report an exactly solvable quantum model featuring a spin-dependent Coulomb interaction, described by the spin vector potential \(\vec{\mathcal{A}} = k (\vec{r} \t…

quant-ph2023

Two Quantum Entangled Cheshire Cats

Jie Zhou, Leong-Chuan Kwek, Jing-Ling Chen

Quantum entanglement serves as an important resource for quantum processing. In the original thought experiment of the Quantum Cheshire Cat, the physical properties of the cat (sta…

quant-ph2005★ 38 cited

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…

quant-ph2005★ 19 cited

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…

quant-ph2004★ 27 cited

Operator-sum representation of time-dependent density operators and its applications

D. M. Tong, L. C. Kwek, C. H. Oh +2

We show that any arbitrary time-dependent density operator of an open system can always be described in terms of an operator-sum representation regardless of its initial condition…