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DTSTAMP:20261102T111913
DTSTART;TZID=America/Detroit:20261109T120000
DTEND;TZID=America/Detroit:20261109T130000
SUMMARY:Lecture / Discussion:Applied Physics | Atomically Thin Quantum Sensors
DESCRIPTION:Solid-state spin defects have revolutionized quantum sensing by enabling nanoscale measurements with subwavelength spatial resolution and sensitivity to diverse physical signals. To fully harness these capabilities\, one must minimize both the distance between the sensor and the target\, as well as the smallest detectable signal. However\, established systems such as nitrogen-vacancy centers in diamond often face limitations when operated close to surfaces or confined to nanoscale volumes\, motivating the exploration of spin-active defects in novel\, atomically thin materials.\n\nIn this talk\, I will present an experimental framework for studying a new two-dimensional spin ensemble hosted in hexagonal boron nitride (hBN). I will discuss how we probe the spin Hamiltonian\, characterize coherent sensing dynamics\, and identify the noise environment of this2D platform. By precisely mapping hyperfine interactions with nearby nuclear spins\, we demonstrate controllable switching between magnetic and electric field sensing\, as well as develop strategies to build atomic registers. I will also introduce a new method for reconstructing the local noise spectrum that directly accounts for imperfections in quantum control.\n\nOur measurements reveal a coherence time of up to 0.1 milliseconds and AC magnetic sensitivities at the nanotesla level for targets only 10 nanometers away – approaching the regime needed to detect single nuclear spins. These advances\, together with the design flexibility of atomically thin hosts like hBN\, open pathways toward next-generation quantum sensors that combine ultrahigh sensitivity\, tunable noise selectivity\, and reconfigurable quantum functionalities.
UID:154415-21917692@events.umich.edu
URL:https://events.umich.edu/event/154415
CLASS:PUBLIC
STATUS:CONFIRMED
CATEGORIES:Applied Physics,Electrical Engineering And Computer Science,Physics
LOCATION:West Hall - 350
CONTACT:
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DTSTAMP:20261030T121654
DTSTART;TZID=America/Detroit:20261109T120000
DTEND;TZID=America/Detroit:20261109T123000
SUMMARY:Performance:Austin Zhu\, carillon
DESCRIPTION:Economics graduate student Austin Zhu performs on the Charles Baird Carillon\, an instrument of 53 bronze bells located inside the Burton Memorial Tower. The largest bell\, which strikes the hour\, weighs 12 tons\, while the smallest bell\, 4½ octaves above\, weighs just 15 pounds.\n\nThirty-minute recitals are performed on the Charles Baird Carillon at noon every weekday that classes are in session\, followed by visitor Q&A with the carillonist. The bell chamber may be accessed via a combination of elevator and stairs. Take the elevator to the highest floor possible (floor 8)\, and then climb two flights of stairs (39 steps) to the bell chamber (floor 10). Hearing protection earmuffs are provided for visitors. Be prepared to walk on ice and snow in the bell chamber during winter. Built in 1936\, the Charles Baird Carillon is not ADA accessible. Visitors with mobility concerns are invited to visit the Lurie Carillon.
UID:154330-21917556@events.umich.edu
URL:https://events.umich.edu/event/154330
CLASS:PUBLIC
STATUS:CONFIRMED
CATEGORIES:Free,Music
LOCATION:Burton Memorial Tower
CONTACT:
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