中国物理B ›› 2008, Vol. 17 ›› Issue (10): 3549-3552.doi: 10.1088/1674-1056/17/10/004
周晓祺, 杨 涛
Zhou Xiao-Qi(周晓祺)† and Yang Tao(杨涛)
摘要: We propose a scheme to effectively generate a four-photon path-entangled number state [the NOON state i.e. $\dfrac{1}{\sqrt{2}}(\vert N,0\rangle+\vert 0,N\rangle)$] for the demonstration of four-photon de Broglie wavelength. Our scheme requires only linear optical elements, photon detectors and post-selections which are all within the reach of current technology.
中图分类号: (Quantum state engineering and measurements)