Speaker: Rusuke Hamazaki (RIKEN)

Date: Aug. 3rd, 17:00-

Style: Webinar by ZOOM

Title: Family-Vicsek Scaling of Roughness Growth in a Strongly Interacting Bose Gas

Abstract:

Family-Vicsek scaling is one of the most essential scale-invariant laws emerging in surface-roughness growth of classical systems. In this talk, we theoretically demonstrate that the Family-Vicsek scaling emerges even in a strongly interacting quantum bosonic system from nonequilibrium initial states. We introduce a surface-height operator, which is comprised of a summation of local particle-number operators at a simultaneous time. The surface roughness defined from this operator shows Family-Vicsek scalings driven by purely quantum fluctuations with exponents that depend on the filling of the system.