  Strong motivation for investing in quantum sensing arises from the need to
investigate phenomena that are very weakly coupled to the matter and fields
well described by the Standard Model. These can be related to the problems of
dark matter, dark sectors not necessarily related to dark matter (for example
sterile neutrinos), dark energy and gravity, fundamental constants, and
problems with the Standard Model itself including the Strong CP problem in QCD.
Resulting experimental needs typically involve the measurement of very low
energy impulses or low power periodic signals that are normally buried under
large backgrounds. This report documents the findings of the 2023 Quantum
Sensors for High Energy Physics workshop which identified enabling quantum
information science technologies that could be utilized in future particle
physics experiments, targeting high energy physics science goals.
