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A new laboratory bound on the axial-vector mediated interaction betweenelectron spins at micrometer scale is established with single nitrogen-vacancy(NV) centers in diamond. A single crystal of $p$-terphenyl dopedpentacene-$d_{14}$ under laser pumping provides the source of polarizedelectron spins. Based on the measurement of polarization signal vianitrogen-vacancy centers, we set a constraint for the exotic electron-electroncoupling $g_A^eg_A^e$, within the force range from 10 to 900 $\mu$m. Theobtained upper bound of the coupling at 500 $\mu$m is $|g_A^eg_A^e / 4\pi\hbarc |\leq 1.8\times 10^{-19} $, which is one order of magnitude more stringentthan a previous experiment. Our result shows that the NV center can be apromising platform for searching for new particles predicted by theories beyondthe standard model.

Constraints on a Spin-Dependent Exotic Interaction between Electrons with Single Electron Spin Quantum Sensors