CM Seminar: Ania Bleszynski Jayich – University of California Santa Barbara
Title: Quantum sensing in the solid-state: from one spin to many spins

Abstract: Sensors that leverage quantum phenomena to measure physical quantities harbor many attractive features beyond classical sensors. Solid-state quantum sensors, with the nitrogen-vacancy (NV) center in diamond a forefront technology, are particularly attractive for their compatibility with biological and condensed matter systems, offering ultra-high spatial resolution and sensitivity over a wide temperature range, while being quantitative and non-invasive. Here I first present our group’s work on NV-center-based scanned probe imaging of electron flow patterns in graphene, revealing the presence of hydrodynamic electron flow. A frontier of quantum sensing is the utilization of entangled quantum sensors for metrological advantage, a goal not yet realized in the solid-state. I also discuss our group’s progress towards realizing novel many-body states of entangled spins, both diamond-based qubits and novel chemically-assembled molecular spin systems.

Speaker Bio: Ania Bleszynski Jayich is a professor of physics at the University of California Santa Barbara, where she holds the Bruker Endowed Chair for Science and Engineering, the Elings Endowed Chair for Quantum Science, and is co-director of the Quantum Foundry, an NSF Q-AMASE-I center. Her research interests include quantum assisted sensing and imaging on the nanoscale, spin-coupled optomechanics, and hybrid quantum systems for sensing and quantum information. Before coming to UCSB, Ania was a postdoctoral researcher at Yale University, and received her PhD in physics from Harvard in 2006 and a B.S. in physics and mathematical and computational science from Stanford in 2000.