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n improved laboratory bound on the exotic spin- and velocity-dependentinteraction at micrometer scale is established with a single electron spinquantum sensor. The single electron spin of a near-surface nitrogen-vacancycenter in diamond is utilized as the quantum sensor and a vibrating half-spherelens is taken as the source of the moving nucleons. The exotic interactionbetween the polarized electron and the moving nucleon source is explored bymeasuring the possible magnetic field felt by the electron spin quantum sensor.Our experiment set improved constraints on the exotic spin- andvelocity-dependent interaction within the force range from 1 to 330 $\mu$m. Theupper limit of the coupling $g_A^eg_V^N $ at $200 ~\mu m$ is $| g_A^e g_V^N|\leq 8.0\times10^{-19}$, significantly improving the current laboratory limitby more than four orders of magnitude.

Experimental Constraint on an Exotic Parity-Odd Spin- and Velocity-Dependent Interaction with a Single Electron Spin Quantum Sensor