Absence of entanglement effect on the decay dynamics of H(2<i>p</i>) pairs produced by VUV photodissociation of H<sub>2</sub>

Urbain, Xavier; Dochain, Arnaud; Lauzin, Clément; Fabre, B.

doi:10.1088/1742-6596/635/11/112085

Cited by 8 publications

(24 citation statements)

References 6 publications

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“…Our analysis concludes, answering the initial question, that entanglement is actually a key ingredient in the explanation of experiments of the type in [1] and [3]. However, it is not the only physical ingredient involved in the problem.…”

Section: Discussionsupporting

confidence: 58%

“…Finally, and this is the most important result from the practical point of view, we have shown that setups of the type in [1] and [3] provide an experimental verification of the process of disentanglement by spontaneous emission. As we indicated earlier it is, to the best of our knowledge, the first demonstration of the effect.…”

Section: Discussionmentioning

confidence: 72%

“…The phenomenon of disentanglement by spontaneous emission [4,5] enters into the physical picture of the problem providing an elegant explanation of the behavior of the second photon emission. Conversely, setups of the type of [1] and [3] experimentally verify the phenomenon. This is a relevant result because it is its first direct demonstration.…”

Section: Introductionmentioning

confidence: 95%

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Entanglement, identity, and disentanglement in two-atom spontaneous emission

Sancho

2017

Phys. Rev. A

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Two recent experiments studying the potential effect of entanglement on the emission properties of excited atoms produced in molecular photodissociation have been interpreted in conflicting ways. We present a theoretical analysis of the problem, showing that the experimental results can be explained by a combination of three processes: entanglement, exchange effects associated with the identical nature of the atoms and disentanglement by spontaneous emission. According to our approach these experiments provide the first verification of the phenomenon of disentanglement by spontaneous emission.

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Section: Discussionsupporting

confidence: 58%

Section: Discussionmentioning

confidence: 72%

Section: Introductionmentioning

confidence: 95%

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Entanglement, identity, and disentanglement in two-atom spontaneous emission

Sancho

2017

Phys. Rev. A

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“…As signaled in the introduction, the experiments of the type [5,6] provide the first demonstration of disentanglement by spontaneous emission. Similar experiments with identical fermionic atoms and distinguishable ones would provide a verification of the phenomenon for these types of atoms.…”

Section: Discussionmentioning

confidence: 99%

The exponential laws for emission and decaying of entangled atoms

Sancho

2017

Eur. Phys. J. Plus

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The first photon emission and the disentanglement of a pair of identical bosonic atoms in excited entangled states follow an exponential law. We extend the theory to distinguishable and identical fermionic two-atom systems. As a byproduct of the analysis we determine the symmetries of the fermionic wave function. We also derive the emission distributions of excited atoms in product states, which must take into account the presence of simultaneous detections. Comparing both distributions reveals a direct manifestation of the modifications induced by entanglement on the atomic emission properties.

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“…It is based on the absorption properties of two identical atoms generated in the photodissociation of molecules by light in a superposition state. Molecular photodissociation has been previously used to experimentally study the influence of entanglement on the process of spontaneous emission [8,9]. As the identity of the atoms must also be taken into account in order to explain the results of the experiments [10], this process is well suited to carry out tests where entanglement and identity are relevant at once.…”

Section: The Physical Systemmentioning

confidence: 99%

Revisiting entanglement-induced exclusion

Sancho¹

2022

Preprint

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We revisit the problem of absorption by identical atoms with entanglement and symmetrization acting at once. We introduce the recoil of the atoms in the calculations and compare the results with those of distinguishable systems instead of mixtures. These absorption rates have been proposed to test entanglement-induced exclusion. The manifestation of exclusion in this framework is a sharp increase of the absorption rates in its proximity. The control of the superposition coefficients used in this representation is simpler than that of the overlapping degree considered in the initial proposal. Another result of this alternative approach is the inhibition of the entanglement effects for some values of the parameters.

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Absence of entanglement effect on the decay dynamics of H(2p) pairs produced by VUV photodissociation of H₂

Cited by 8 publications

References 6 publications

Entanglement, identity, and disentanglement in two-atom spontaneous emission

Entanglement, identity, and disentanglement in two-atom spontaneous emission

The exponential laws for emission and decaying of entangled atoms

Revisiting entanglement-induced exclusion

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Absence of entanglement effect on the decay dynamics of H(2p) pairs produced by VUV photodissociation of H2

Cited by 8 publications

References 6 publications

Entanglement, identity, and disentanglement in two-atom spontaneous emission

Entanglement, identity, and disentanglement in two-atom spontaneous emission

The exponential laws for emission and decaying of entangled atoms

Revisiting entanglement-induced exclusion

Contact Info

Product

Resources

About

Absence of entanglement effect on the decay dynamics of H(2p) pairs produced by VUV photodissociation of H₂