John Ruhl

John Ruhl is a Professor at Case Western Reserve University specializing in experimental cosmology. His research focuses on the Cosmic Microwave Background Radiation (CMB), utilizing it to study fundamental questions about the universe's composition, dark matter, dark energy, and structure formation. He is actively involved in major projects such as the South Pole Telescope (SPT) and the upcoming CMB-S4 experiment, which aim to advance understanding of cosmological phenomena through precise temperature and polarization measurements.

• Education: B.S. from University of Michigan (1987), Ph.D. from Princeton University (1993).
• Research: Investigates CMB temperature variations, polarization patterns, and gravitational waves from cosmic inflation.
• Projects: South Pole Telescope (SPT-3G camera), CMB-S4 experiment in Chile and South Pole.
• Contact: Email john.ruhl@case.edu, Office: Rockefeller Building, Phone: 216.368.4049.