Challenges
Datasets
Workspaces
Papers
Discussions
Leaderboard
Log inSign up
Challenges
Datasets
Workspaces
Papers
Discussions
Leaderboard
Blog
Job Board
Q3AS

© 2026 Aqora Quantum S.A.S.

TermsPrivacyLegal Notice

arXiv:quant-ph/0201086 · Physics Letters A

Engineering entanglement between external degrees of freedom of atoms via Bragg scattering

Aeysha Khalique, Farhan Saif

Published Jun 30, 2003• 38 citations
arXivHTMLPDF
DOI
10.1016/s0375-9601(03)00879-x

Related papers

Engineering distant cavity fields entanglement through Bragg diffraction of neutral atoms

Tasawar Abbas, Misbah Qurban, Rameez‐ul Islam +1 more

Optics Communications•Jul 24, 2015•10 citations

Hyperentanglement teleportation through external momenta states

Liaqat Ali, Rameez‐ul‐Islam, Manzoor Ikram +2 more

Abstract The conventional teleportation protocol requires a state entangled in only one degree of freedom (DOF), while hyperteleportation requires more than single DOF to complete the task. The hyperteleportation schematics are demonstrated only for the photonic systems, where in the present paper we extend the idea to a hyperteleportation protocol involving the atomic internal and external states. The protocol is deterministically engineered through resonant and off-resonant atomic Bragg diffraction involving two-level neutral atoms under standard cavity-QED working environment. Moreover, the longer interaction time Bragg’s regime with well separated transverse momenta states as an output of the neutral atoms guarantees the high enough engineering fidelities with reduced decoherence rates. The experimental parameters for the demonstration of the proposed scheme are also elucidated briefly describing the optimistic feasibility for the experimental execution of the proposed schematics.

Journal of Physics B Atomic Molecular and Optical Physics•Dec 8, 2021•20 citations

Scattering of atoms by light waves

Farhan Saif, Shinichi Watanabe

In this chapter we consider the scattering of ultra-cold atoms exposed to a periodic optical potential. We explain Kapitza–Dirac scattering, Bragg diffraction, and Talbot scattering of atoms, and note that the external degrees of freedom or momentum states of the atom play a significant role in the scattering.

Institute of Physics eBooks•Dec 1, 2023•0 citations

Engineering entanglement between atoms and photons in a cavity

S. Haroche

Elsevier eBooks•Jan 1, 1999•0 citations

Engineering statistical transmutation of identical quantum particles

Simone Barbarino, Rosario Fazio, Vlatko Vedral +1 more

A fundamental pillar of quantum mechanics concerns indistinguishable quantum particles. In three dimensions they may be classified into fermions or bosons, having, respectively, antisymmetric or symmetric wave functions under particle exchange. One of the numerous manifestations of this quantum statistics is the tendency of fermions (bosons) to antibunch (bunch). In a two-particle scattering experiment with two possible outgoing channels [C. K. Hong, Z. Y. Ou, and L. Mandel, Phys. Rev. Lett. 59, 2044 (1987)], the probability of the two particles to arrive each at a different terminal is enhanced (with respect to classical particles) for fermions, and reduced for bosons. Here we show that by entangling the particles with an external degree of freedom, we can engineer quantum statistical transmutation, which may cause fermions to bunch. Our analysis may have consequences on the observed fractional statistics of anyons, including non-Abelian statistics, with serious implications for quantum computing operations in the presence of external degrees of freedom.

arXiv:1806.09971•Physical review. B./Physical review. B•Jan 22, 2019•9 citations

Entanglement of two coupled two-level atoms

Suttipong Locharoenrat

•Sep 3, 2014•0 citations
Abstract The conventional teleportation protocol requires a state entangled in only one degree of freedom (DOF), while hyperteleportation requires more than single DOF to complete the task. The hyperteleportation schematics are demonstrated only for the photonic systems, where in the present paper we extend the idea to a hyperteleportation protocol involving the atomic internal and external states. The protocol is deterministically engineered through resonant and off-resonant atomic Bragg diffraction involving two-level neutral atoms under standard cavity-QED working environment. Moreover, the longer interaction time Bragg’s regime with well separated transverse momenta states as an output of the neutral atoms guarantees the high enough engineering fidelities with reduced decoherence rates. The experimental parameters for the demonstration of the proposed scheme are also elucidated briefly describing the optimistic feasibility for the experimental execution of the proposed schematics.
A fundamental pillar of quantum mechanics concerns indistinguishable quantum particles. In three dimensions they may be classified into fermions or bosons, having, respectively, antisymmetric or symmetric wave functions under particle exchange. One of the numerous manifestations of this quantum statistics is the tendency of fermions (bosons) to antibunch (bunch). In a two-particle scattering experiment with two possible outgoing channels [C. K. Hong, Z. Y. Ou, and L. Mandel, Phys. Rev. Lett. 59, 2044 (1987)], the probability of the two particles to arrive each at a different terminal is enhanced (with respect to classical particles) for fermions, and reduced for bosons. Here we show that by entangling the particles with an external degree of freedom, we can engineer quantum statistical transmutation, which may cause fermions to bunch. Our analysis may have consequences on the observed fractional statistics of anyons, including non-Abelian statistics, with serious implications for quantum computing operations in the presence of external degrees of freedom.