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Insulating Bose-Einstein condensates and universal pattern formation in dipole-conserving boson systems

Ethan Lake - Massachusetts Institute of Technology

Vedika Khemani

Event Details:

Thursday, December 1, 2022
3:15pm - 4:30pm PST

Location

Stanford University
476 Lomita Mall
Room 115
Stanford, CA 94305
United States

I will discuss recent work on bosonic models whose dynamics conserves both total charge and total dipole moment, a situation which can be engineered in strongly tilted optical lattices and rotating BECs. I will focus in particular on a dipole-conserving variant of the Bose-Hubbard model, which realizes an unusual phase of matter possessing a Bose-Einstein condensate, but which is nevertheless insulating, and has zero superfluid weight. I will also describe how these models exhibit a universal instability towards `fracturing' into an exotic type of glassy state, and the relation of this phenomena to recent experiments on bosonic quantum Hall systems.
 

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