Large pressure effect on the angular distribution of two Lyman-alpha photons emitted by an entangled pair of H(2p) atoms in the photodissociation of H2.
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.
Tanabe
Takehiko
T
Department of Chemistry, Tokyo Institute of Technology, Tokyo 152-8551, Japan.
Odagiri
Takeshi
T
Nakano
Motoyoshi
M
Suzuki
Isao H
IH
Kouchi
Noriyuki
N