Snowmass 2021 IF01: Quantum Sensors Topical Group Report

Kavli Affiliate: Kent Irwin

| First 5 Authors: Thomas Cecil, Kent Irwin, Reina Maruyama, Matt Pyle, Silvia Zorzetti

| Summary:

The use of quantum sensors in high energy physics has seen explosive growth
since the previous Snowmass Community Study. This growth extends far beyond
high energy physics (HEP) impacting many areas of science from communications
to cryptography to computing. Quantum sensors have been used in searches for
dark matter – particle and wave, fifth forces, dark photons, permanent electric
dipole moment (EDM), variations in fundamental constants, and gravitational
waves, among others. These sensors come in a wide range of technologies: atom
interferometers and atomic clocks, magnetometers, quantum calorimeters and
superconducting sensors to name a few. Early work with quantum sensors in the
context of particle physics often focused in cosmic and rare and precision
frontiers, but recent concepts seek to expand the use of quantum sensors to the
energy and neutrino frontiers solidifying them as fundamental technologies for
the future of experimental HEP. Based upon input to the Snowmass process our
topical group has identified several key messages necessary to support the
development and use of quantum sensors in HEP.

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