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Please use this identifier to cite or link to this item: http://hdl.handle.net/2289/8153
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dc.contributor.authorYi, Bin-
dc.contributor.authorSinha, Urbasi-
dc.contributor.authorHome, Dipankar-
dc.contributor.authorMazumdar, Anupam-
dc.contributor.authorBose, Sougato-
dc.date.accessioned2023-10-11T06:34:56Z-
dc.date.available2023-10-11T06:34:56Z-
dc.date.issued2023-09-22-
dc.identifier.citationPhysical Review Research, 2023, Vol.5, Article No. 033202en_US
dc.identifier.issn2643-1564-
dc.identifier.urihttp://hdl.handle.net/2289/8153-
dc.descriptionOpen Accessen_US
dc.description.abstractAn open challenge in physics is to expand the frontiers of the validity of quantum mechanics by evidencing nonclassicality of the center of mass state of a macroscopic object. Yet another equally important task is to evidence the essential nonclassicality of the interactions which act between macroscopic objects. Here we introduce a new tool to meet these challenges: massive spatial qubits. In particular, we show that if two distinct localized states of a mass are used as the |0⟩ and |1⟩ states of a qubit, then we can measure this encoded spatial qubit with a high fidelity in the σx,σy, and σz bases simply by measuring its position after different duration of free evolution. This technique can be used reveal the irreducible nonclassicality of the spin and center of mass entangled state of a nanocrystal implying macrocontextuality. Further, in the context of Casimir interaction, this offers a powerful method to create and certify non-Gaussian entanglement between two neutral nano-objects. The entanglement such produced provides an empirical demonstration of the Casimir interaction being inherently quantum.en_US
dc.language.isoenen_US
dc.publisherAmerican Physical Societyen_US
dc.relation.urihttps://arxiv.org/abs/2106.11906en_US
dc.relation.urihttps://doi.org/10.1103/PhysRevResearch.5.033202en_US
dc.relation.urihttps://ui.adsabs.harvard.edu/abs/2021arXiv210611906Y/abstracten_US
dc.relation.urihttps://inspirehep.net/literature/2666456en_US
dc.rights2023 American Physical Societyen_US
dc.subjectnonlocalityen_US
dc.subjectquantum correlations in quantum informationen_US
dc.subjectquantum entanglementen_US
dc.subjectquantum foundationsen_US
dc.subjectquantum measurementsen_US
dc.subjectquantum to classical transactionen_US
dc.titleMassive spatial qubits: Testing macroscopic nonclassicality and Casimir entanglementen_US
dc.typeArticleen_US
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