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arXiv · 2506.16621

np spin correlations in the deuteron ground state

Ashutosh Singh·Ankit Kumar Das·Ankit Kumar·P. Arumugam
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Abstract

The deuteron is the simplest atomic nucleus made of two particles - a proton and a neutron. In this work, we study how their spins are quantum entangled with each other. We study two cases: when the deuteron is in a fixed projection of total angular momentum, and when it exists in a superposition of all projections. Our findings show that the spins are most entangled when the total projection is zero, and that strong entanglement still exists even when all spin states are superposed.

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Ashutosh Singh, Ankit Kumar Das, Ankit Kumar, P. Arumugam. 2025-06-19. np spin correlations in the deuteron ground state. https://arxiv.org/abs/2506.16621

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