Effect of entanglement on the decay dynamics of a pair of H(2p) atoms due to spontaneous emission

Takehiko Tanabe; Takeshi Odagiri; Motoyoshi Nakano; Yoshiaki Kumagai; Isao H. Suzuki; Masashi Kitajima; Noriyuki Kouchi

doi:10.1103/PhysRevA.82.040101

Effect of entanglement on the decay dynamics of a pair of H(2p) atoms due to spontaneous emission

Takehiko Tanabe, Takeshi Odagiri, Motoyoshi Nakano, Yoshiaki Kumagai, Isao H. Suzuki, Masashi Kitajima, Noriyuki Kouchi

Division of Developmental Research in Education Programs

Research output: Contribution to journal › Article › peer-review

16 Citations (Scopus)

Abstract

We have measured the coincidence time spectra of two Lyman-α photons emitted by a pair of H(2p) atoms in the photodissociation of H₂ at the incident photon energy of 33.66 eV and at the hydrogen gas pressures of 0.40 and 0.02 Pa. The decay time constant at 0.02 Pa is approximately half the lifetime of a single H(2p) atom, 1.60 ns, while the decay time constant at 0.40 Pa is in agreement with the lifetime of a single H(2p) atom. It turns out that the decay faster than the lifetime of a single H(2p) atom originates from the entanglement in the pair of H(2p) atoms. We have demonstrated an effect of entanglement on atomic decay.

Original language	English
Article number	040101
Journal	Physical Review A - Atomic, Molecular, and Optical Physics
Volume	82
Issue number	4
DOIs	https://doi.org/10.1103/PhysRevA.82.040101
Publication status	Published - 2010 Oct 20

ASJC Scopus subject areas

Atomic and Molecular Physics, and Optics

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Effect of entanglement on the decay dynamics of a pair of H(2p) atoms due to spontaneous emission. / Tanabe, Takehiko; Odagiri, Takeshi; Nakano, Motoyoshi; Kumagai, Yoshiaki; Suzuki, Isao H.; Kitajima, Masashi; Kouchi, Noriyuki.

In: Physical Review A - Atomic, Molecular, and Optical Physics, Vol. 82, No. 4, 040101, 20.10.2010.

Research output: Contribution to journal › Article › peer-review

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AU - Tanabe, Takehiko

AU - Odagiri, Takeshi

AU - Nakano, Motoyoshi

AU - Kumagai, Yoshiaki

AU - Suzuki, Isao H.

AU - Kitajima, Masashi

AU - Kouchi, Noriyuki

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