143 citations · 1.1k across the 34 of their papers we have counts for
7 papers · 1 filter
Two-mode entanglement in two-component Bose-Einstein condensates
H. T. Ng, P. T. Leung
We study the generation of two-mode entanglement in a two-component Bose-Einstein condensate trapped in a double-well potential. By applying the Holstein-Primakoff transformation,…
Swapping and entangling qubits of single photons and atoms
T. W. Chen, C. K. Law, P. T. Leung
A scheme is proposed here to achieve swapping and entangling of photonic and atomic qubits with high fidelity. The mechanism is based on the scattering of a single photon from a $Λ…
Generation of entangled states of two atoms inside a leaky cavity
T. W. Chen, C. K. Law, P. T. Leung
An in-depth theoretical study is carried out to examine the quasi-deterministic entanglement of two atoms inside a leaky cavity. Two -type three-level atoms, initially in their…
Effect of collision dephasing on atomic evolutions in a high-Q cavity
T. W. Chen, P. T. Leung
The decoherence mechanism of a single atom inside a high-Q cavity is studied, and the results are compared with experimental observations performed by M. Brune et al. [Phys. Rev. L…
Propagators of the Jaynes-Cummings model in open systems
T. W. Chen, C. K. Law, P. T. Leung
We present a propagator formalism to investigate the scattering of photons by a cavity QED system that consists of a single two-level atom dressed by a leaky optical cavity field.…
Coherent control of spin squeezing
C. K. Law, H. T. Ng, P. T. Leung
We report an interaction that controls spin squeezing in a collection of spin 1/2 particles. We describe how spin squeezing can be generated and maintained in time. Our scheme can…