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Please use this identifier to cite or link to this item: http://hdl.handle.net/2289/8522
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dc.contributor.authorRoy, Animesh Sinha-
dc.contributor.authorNamitha, C. V.-
dc.contributor.authorMukerjee, Subroto-
dc.contributor.authorPanigrahi, Prasanta K.-
dc.contributor.authorSinha, Urbasi-
dc.date.accessioned2025-09-03T10:59:40Z-
dc.date.available2025-09-03T10:59:40Z-
dc.date.issued2025-06-18-
dc.identifier.citationFrontiers in Quantum Science and Technology, 2025, Vol. 4, p1592872en_US
dc.identifier.urihttp://hdl.handle.net/2289/8522-
dc.descriptionOpen Accessen_US
dc.description.abstractQuantum correlations between two or more different degrees of freedom of the same particle are sometimes referred to as intraparticle entanglement. In this work, we study these intraparticle correlations between two different degrees of freedom under various decoherence channels, viz. amplitude damping, depolarizing, and phase damping channels. We mainly focus on the amplitude-damping channel for which we obtain an exact analytical expression for the concurrence of an arbitrary initial pure state. In this channel, we observe the unique feature of entanglement arising from a separable initial state. We show that this channel allows for a revival of entanglement with an increasing damping parameter, including from a zero value of the concurrence. We also consider the amplitude-damping channel for interparticle entanglement and show that it does not display any of the above-mentioned interesting features. Further, for comparable parameters, the decay of entanglement in the interparticle system is much greater than in the intraparticle system, which we also find to be true for the phase damping and depolarizing channels. Thus, intraparticle entanglement subjected to damping is much more robust than interparticle entanglement.en_US
dc.language.isoenen_US
dc.publisherfrontiersin.orgen_US
dc.relation.urihttps://doi.org/10.3389/frqst.2025.1592872en_US
dc.rights2025 The Author(s)en_US
dc.subjectintraparticle entanglementen_US
dc.subjectinterparticle entanglementen_US
dc.subjectentanglement decoherenceen_US
dc.subjectrevival of entanglementen_US
dc.subjectamplitude-damping channelen_US
dc.subjectphase damping channelen_US
dc.subjectdepolarizing channelen_US
dc.titleIntraparticle entanglement in noisy quantum channels: degradation and revival through amplitude dampingen_US
dc.typeArticleen_US
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