BEGIN:VCALENDAR VERSION:2.0 BEGIN:VEVENT SUMMARY:Single electron spin resonance spectroscopy using microwave photon counting DESCRIPTION:Electron Spin Resonance (ESR) spectroscopy characterizes paramagnetic impurities in a sample for chemistry, biology, and material sciences. We have developed a novel ESR detection method that reaches single spin sensitivity, using a microwave photon counter based on a superconducting qubit at millikelvin temperatures. I will present results obtained with Er3+ ions in a scheelite crystal and discuss applications in quantum sensing and computing. LOCATION: Erwin Schrödinger Saal, Innsbruck DTSTART:20240619T090000 DTEND:20240619T100000 TZID: Europe/Vienna END:VEVENT END:VCALENDAR