arXiv subjects

Xin Yu Zhao

Publications and source records attributed to Xin Yu Zhao.

2 recordsLinked to original sources

arXiv2009

An effective spin-1 Heisenberg chain in coupled cavities

A coupled array of $N$ identical cavities, each of which contains a five-level atom is investigated. The results show that the atoms via the exchange of virtual photons can be effectively equal to spin 1 Heisenberg model under certain conditions. By tuning the laser fields, the parameters of the effective Hamiltonian can be controlled individually.

quant-ph↗

arXiv2008

Entanglement generation in double-$Λ$ system

In this paper, we study the generation of entanglement in a double-$Λ$ system. Employing standard method of laser theory, we deduce the dynamic evolution equation of the two-mode field. We analyze the available entanglement criterion for double-$Λ$ system and the condition of entanglement existence. Our results show that under proper parameters, the two-mode field can entangled and amlified.

quant-ph↗