Tuesday, Nov 15: Quantum sensing, imaging, and interfacing with nitrogen-vacancy centers in diamond

Event Date: 

Tuesday, November 15, 2016 - 4:00pm

Event Date Details: 

Refreshments will be served at 3:40pm

Event Location: 

  • Broida 1640
  • Physics Colloquium

The nitrogen vacancy (NV) center in diamond has emerged as a promising quantum technology in a variety of contexts. Here I discuss our group’s work on diamond NV- based quantum sensing and imaging with a particular emphasis on imaging nanoscale magnetism in condensed matter systems with nontrivial spatial magnetic order. I also present our work on interfacing NV quantum bits with phonons in a hybrid quantum system, with eventual applications in quantum computing and fundamental studies of macroscopic systems in the quantum regime. These distinct research directions share several similar challenges, the biggest of which is maintaining the NV’s excellent quantum properties while intimately interfacing NV centers with either the  system under study or with other quantum elements. I discuss this “quantum interface” problem and present recent work on unraveling the mechanisms of NV decoherence, in particular near interfaces.