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Emergent fractons in Elusive Bose Metal --- When IR theory blend with UV physics
Add to Calendar 2021-09-27T19:30:00 2021-09-27T20:30:00 UTC Emergent fractons in Elusive Bose Metal --- When IR theory blend with UV physics https://psu.zoom.us/j/94777536024?pwd=Y09idXJSMmorRUJPV3VhalJMTFFVZz09 Password: 342891
Start DateMon, Sep 27, 2021
3:30 PM
to
End DateMon, Sep 27, 2021
4:30 PM
Presented By
Yizhi You, Princeton University
Event Series: CAMP Seminar

In this talk, I will show that the defects of the valence plaquette solid(VPS) order parameter, in addition to possessing non-trivial quantum numbers, have fracton mobility constraints in the VPS phase. The spinon inside a single vortex cannot move freely in any direction, while a dipolar pair of vortices with spinon pairs can only move perpendicular to its dipole moment. These mobility constraints, while they persist near QCP, can potentially inhibit the condensation of spinons and preclude a continuous transition from the VPS to the Néel antiferromagnet. Instead, the VPS melting transition can be driven by the proliferation of spinon dipoles. In particular, we argue that a 2d VPS can melt into a stable gapless phase in the form of an algebraic bond liquid with algebraic correlations and long-range entanglement. Such a bond liquid phase yields a concrete example of the elusive 2d Bose metal with symmetry fractionalization.