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Family-Vicsek Scaling of Roughness Growth in a Strongly Interacting Bose Gas
Kazuya Fujimoto, Ryusuke Hamazaki, Yuki Kawaguchi
Family-Vicsek scaling is one of the most essential scale-invariant laws emerging in surface-roughness growth of classical systems. In this Letter, we theoretically elucidate the em…
Scale-invariant relaxation dynamics in two-component Bose-Einstein condensates with large particle-number imbalance
Kazuya Fujimoto, Kazunori Haneda, Kazue Kudo +1
We theoretically study the scale-invariant relaxation dynamics in segregating two-component Bose-Einstein condensates with large particle-number imbalance, and uncover that random…
Theory of Josephson Current on a Magnetically Doped Topological Insulator
Tsubasa Toki, Sho Nakosai, Yukio Tanaka +1
Proximity induced superconducting states in the surface of magnetically doped topological insulators can host chiral Majorana modes. We consider a Josephson junction in that system…
Generalized Berry phase for a bosonic Bogoliubov system with exceptional points
Terumichi Ohashi, Shingo Kobayashi, Yuki Kawaguchi
We discuss the topology of Bogoliubov excitation bands from a Bose-Einstein condensate in an optical lattice. Since the Bogoliubov equation for a bosonic system is non-Hermitian, c…