Evidencing Macroscopic Quantum Coherence using Confined Uniform Magnetic Field

Abstract:A previously unexplored scheme is devised for creating and certifying coherent quantum superposition of distinctly separated states of a spin-tagged massive object passing through a confined uniform magnetic field. This results in entangling the spatial and spin parts of a two-component Pauli wavefunction such that the entailed coherence can be conveniently certified by spin measurements alone. The implementability of this scheme is analysed using NV-centre nanodiamonds of masses $\sim 10^{10}$ amu based on the current technological capabilities.

arXiv:2609.12124 [quant-ph]

(or arXiv:2609.12124v1 [quant-ph] for this version)

https://doi.org/10.48550/arXiv.2609.12124 Focus to learn more arXiv-issued DOI via DataCite (pending registration)

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