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

Journal Article · Fri Oct 15 00:00:00 EDT 2010 · Physical Review. A

DOI:https://doi.org/10.1103/PHYSREVA.82.040101· OSTI ID:21450688

Tanabe, Takehiko; Odagiri, Takeshi; Nakano, Motoyoshi; Kumagai, Yoshiaki; Kitajima, Masashi; Kouchi, Noriyuki ^[1]; Suzuki, Isao H ^[2]

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1. Department of Chemistry, Tokyo Institute of Technology, Tokyo 152-8551 (Japan)
2. National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba 305-8568 (Japan)

We have measured the coincidence time spectra of two Lyman-{alpha} photons emitted by a pair of H(2p) atoms in the photodissociation of H{sub 2} 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.

• OSTI ID: 21450688
• Journal Information: Physical Review. A, Vol. 82, Issue 4; Other Information: DOI: 10.1103/PhysRevA.82.040101; (c) 2010 The American Physical Society; ISSN 1050-2947
• Country of Publication: United States
• Language: English

Related Subjects

74 ATOMIC AND MOLECULAR PHYSICS
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
ATOMS
COINCIDENCE SPECTROMETRY
DECAY
DISSOCIATION
EMISSION SPECTRA
EV RANGE
HYDROGEN
LIFETIME
PHOTON EMISSION
PHOTON-ATOM COLLISIONS
PHOTONS
QUANTUM ENTANGLEMENT
ATOM COLLISIONS
BOSONS
COINCIDENCE METHODS
COLLISIONS
COUNTING TECHNIQUES
ELEMENTARY PARTICLES
ELEMENTS
EMISSION
ENERGY RANGE
MASSLESS PARTICLES
NONMETALS
PHOTON COLLISIONS
SPECTRA