Tanabe Takehiko, Odagiri Takeshi, Nakano Motoyoshi, Suzuki Isao H, Kouchi Noriyuki
Department of Chemistry, Tokyo Institute of Technology, Tokyo 152-8551, Japan.
Phys Rev Lett. 2009 Oct 23;103(17):173002. doi: 10.1103/PhysRevLett.103.173002.
The angular distribution of two Lyman-alpha photons, i.e., the probability density that two Lyman-alpha photons are emitted in given directions, in the photodissociation of a hydrogen molecule have been measured at the hydrogen gas pressures of 0.40 and 0.13 Pa. We have found that the experimental angular distributions seem to approach the theoretical one by our group [J. Phys. B 40, 617 (2007)] with decreasing pressure, which indicates the generation of the entangled pair of H(2p) atoms shown in the theory and the role of the reaction of the entangled pair of H(2p) atoms with an H2 molecule that efficiently changes the entanglement.
在0.40和0.13帕的氢气压力下，测量了氢分子光解离过程中两个莱曼α光子的角分布，即两个莱曼α光子在给定方向发射的概率密度。我们发现，随着压力降低，实验角分布似乎趋近于我们团队的理论分布[《物理学报B》40, 617 (2007)]，这表明理论中所示的纠缠H(2p)原子对的产生，以及纠缠H(2p)原子对与H2分子反应的作用，该反应有效地改变了纠缠状态。
