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quant-ph2026
Mesoscopic mechanical superpositions by gluing individual quantum systems
Thiago Guerreiro
We propose a protocol for preparing mechanical Schrödinger kittens -- mesoscopic quantum superpositions of coherent motional states of an optically levitated nanoparticle -- by adh…
quant-ph2026
All-optical saddle trap as a platform for mesoscopic quantum experiments
Pedro V. Paraguassú, Luca Abrahão, Daniel Tandeitnik +3
We investigate the quantum dynamics of a levitated nanoparticle in a structured light rotating saddle-like optical potential consisting of a superposition of Gaussian and Laguerre-…
gr-qc2026
On the quantum nature of strong gravity
Felipe Sobrero, Luca Abrahão, Thiago Guerreiro
Belenchia et al. [Phys. Rev. D 98, 126009 (2018)] have analyzed a gedankenexperiment where two observers, Alice and Bob, attempt to communicate via superluminal signals using a sup…