Entangled Nitrogen-Vacancy Center Pairs in Diamond Enable Precise Detection of Individual Electron Spins

Researchers have developed a new protocol utilizing entangled nitrogen-vacancy (NV) center pairs in diamond to achieve highly sensitive and precise detection of individual electron spins. This advancement in quantum sensing demonstrates significant improvements in sensitivity and spatial resolution, overcoming traditional challenges such as environmental noise and restricted sensing volumes. The method introduces a novel approach to atomic-scale spin detection, marking progress in nanoscale measurement technologies.

The research highlights the use of entanglement between NV center pairs as a key factor in enhancing the capabilities of spin sensing. Nitrogen-vacancy centers are defects within diamond structures that exhibit unique quantum properties, making them suitable for applications in high-resolution sensing. By employing entangled states, the protocol minimizes interference from external noise while increasing the accuracy of detecting electron spins at atomic scales. This development addresses longstanding limitations in conventional spin-sensing techniques and opens possibilities for advancements in fields requiring precise nanoscale measurements.

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Date: November 27, 2025

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