Quantum Sensors for High Precision Measurements of Spin-dependent Interactions

TL;DR

This paper reviews how spin-based quantum sensors, leveraging recent technological advances, can be used to detect fundamental physics phenomena such as exotic forces, dark matter interactions, and symmetry violations, offering a complementary approach to traditional particle experiments.

Contribution

It surveys recent experimental methods and technological developments in spin-based quantum sensors for probing fundamental physics beyond the Standard Model.

Findings

Quantum sensors enable highly sensitive detection of spin-dependent interactions.

Technological advancements can significantly improve sensitivity to new physics.

Spin-based sensors provide a complementary approach to collider experiments.

Abstract

The applications of spin-based quantum sensors to measurements probing fundamental physics are surveyed. Experimental methods and technologies developed for quantum information science have rapidly advanced in recent years, and these tools enable increasingly precise control and measurement of spin dynamics. Theories of beyond-the-Standard-Model physics predict, for example, symmetry violating electromagnetic moments aligned with particle spins, exotic spin-dependent forces, coupling of spins to ultralight bosonic dark matter fields, and changes to the local environment that affect spins. Spin-based quantum sensors can be used to search for these myriad phenomena, and offer a methodology for tests of fundamental physics that is complementary to particle colliders and large scale particle detectors. Areas of technological development that can significantly enhance the sensitivity of spin-based quantum sensors to new physics are highlighted.