Science and Engineering

University of California, Santa Barbara

Andrea Young
Santa Barbara, CA
December 2018


Nonabelian states of matter in two dimensional systems host emergent excitations with fundamentally different quantum statistics than those found in our three-dimensional world.  A young investigator at the University of California, Santa Barbara proposes to build and deploy a scanning probe tool—the Ultra-Low Temperature Magneto-Thermal Microscope (ULT-MTM)—designed to facilitate discovery of nonabelian ground states.  The new instrument integrates an ultra-sensitive scanning superconducting sensor in a superfluid helium-4 immersion cell, providing nanoscale thermal and magnetic imaging at millikelvin temperatures.  The ULT-MTM probe will be used to find signatures of nonabelian order in van der Waals heterostructures, consisting of layered stacks of atomically thin two-dimensional materials in which a wide variety of promising candidate states have been identified.  These experiments will provide unprecedentedly detailed information about the microscopic structure of many-body quantum states, while paving the way for breakthroughs in quantum information science that harness the long-predicted decoherence protection of quantum bits based on braiding of nonabelian quasiparticles.



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