Searching for an exotic spin-dependent interaction with a single electron-spin quantum sensor.

ABSTRACT: Searching for new particles beyond the standard model is crucial for understanding several fundamental conundrums in physics and astrophysics. Several hypothetical particles can mediate exotic spin-dependent interactions between ordinary fermions, which enable laboratory searches via the detection of the interactions. Most laboratory searches utilize a macroscopic source and detector, thus allowing the detection of interactions with submillimeter force range and above. It remains a challenge to detect the interactions at shorter force ranges. Here we propose and demonstrate that a near-surface nitrogen-vacancy center in diamond can be utilized as a quantum sensor to detect the monopole-dipole interaction between an electron spin and nucleons. Our result sets a constraint for the electron-n

SUBMITTER: Rong X 

PROVIDER: S-EPMC5821819 | biostudies-literature | 2018 Feb

REPOSITORIES: biostudies-literature