174 citations · 839 across the 43 of their papers we have counts for
7 papers · 2 filters
Time-dependent Fröhlich transformation approach for two-atom entanglement generated by successive passage through a cavity
Yong Li, C. Bruder, C. P. Sun
Time-dependent Fröhlich transformations can be used to derive an effective Hamiltonian for a class of quantum systems with time-dependent perturbations. We use such a transformatio…
Decoherence problem in quantum state transfer via an engineered spin chain
Lan Zhou, Jing Lu, Tao Shi +1
A perfect quantum state transfer(QST) has been shown in an engineered spin chain with "always-on interaction". Here, we consider a more realistic problem for such a protocol, the q…
Quantum criticality in a generalized Dicke model
Yong Li, Z. D. Wang, C. P. Sun
We employ a generalized Dicke model to study theoretically the quantum criticality of an extended two-level atomic ensemble interacting with a single-mode quantized light field. Ef…
Analogue of Cavity QED for Coupling between Spin and Nanomechanical Resonator
Fei Xue, Ling Zhong, Yong Li +1
We describe a cavity QED analogue for the coupling system of a spin and a nanomechanical resonator with a magnetic tip. For the quantized nanomechanical resonator, a spin-boson mod…
Electromagnetic manipulation for anti-Zeno effect in an engineered quantum tunneling process
Lan Zhou, F. M. Hu, Jing Lu +1
We investigate the quantum Zeno and anti-Zeno effects for the irreversible quantum tunneling from a quantum dot to a ring array of quantum dots. By modeling the total system with t…
Fractional revivals of quantum state in tight-binding chain
Bing Chen, Z. Song, C. P. Sun
We investigate the time evolution of Gaussian wave packet (GWP) in the tight-binding chain with uniform nearest neighbor (NN) hopping integral. Analytical analysis and numerical si…