Ash

Research Summary

Floating Electron Qubits

I work on attempting to using electrons floating on liquid helium for quantum computation. Unlike all other elements which freeze, helium remains liquid even at absolute zero. Very close to absolute zero, it becomes superfluid, exhibiting no friction. As a noble gas, helium has a full outer shell of electrons. This means that free electrons cannot penetrate into liquid helium, instead they will just float in a vacuum just above the surface. These electrons can be easily controlled and moved along the frictionless surface, and an electron floating in vacuum above the ultra-clean superfluid surface should have a very long spin coherence time, making a single floating electron a promising qubit candidate.

Cryogenic Electronics

I also work on developing cryogenic readout and control for qubit applications in 100 MHz to 1 GHz range.