A theoretical preprint on arXiv explores how quantum entanglement appears differently when viewed from perspectival quantum reference frames (QRFs) compared to a global, non-perspectival perspective. The paper establishes sufficient mathematical conditions under which global entanglement decomposes into a combination of entanglement and quantum coherence from a specific observer's viewpoint, a process the authors term 'entanglement transference.'

The authors apply this framework to non-inertial quantum reference frames, such as those experiencing acceleration. They revisit the known phenomenon of entanglement degradation in accelerating frames and find that the apparent loss of entanglement can be offset by an increase in coherence resources. The work suggests this perspective could offer insights into quantum reference frames in curved spacetime.

This is a preprint (arXiv:2603.23601) and has not been peer-reviewed. The methodology is entirely theoretical, relying on mathematical derivations in quantum information theory with no experimental component or sample size. Limitations include the specific assumptions required for the sufficient conditions derived, which may not apply universally, and the lack of direct empirical validation. The source URL is https://arxiv.org/abs/2603.23601.