Progress and applications of quantum precision measurement based on SERF effect

Abstract

With the development of quantum precision measurement technology, measurement methods based on magnetic, optical and atomic interactions have started to receive widespread attention. Among them, quantum precision measurement based on the spin-exchange relaxation-free (SERF) effect shows great potential by its ultra-high measurement sensitivity. This paper introduces the basic operation principles of the magnetic field and inertia measurement based on the SERF effect, and focuses on the research progress and applications of SERF quantum precision measurement in fundamental physics, inertial navigation and biomedicine. Finally, we propose a prospect for the directions of SERF quantum precision measurement.

Phase estimation via multi-photon subtraction inside the SU(1,1) interferometer

“…Quantum precision measurement, leveraging the unique properties of quantum states, offers a highly accurate approach that has the potential for widespread utilization in diverse fields [1][2][3][4][5][6][7][8][9], such as quantum computing and quantum communication. Remarkable achievements in quantum measurement technologies have been made, including simultaneous measurement and coherent measurement using quantum entanglement states.…”