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1091-專題演講-1091223-黃靜瑜（東海應物）
演講活動
張貼人：李明芳 ╱ 公告日期：2020-08-18|
Time：1091223 (Wed.) 14:20~16:20
Speaker：Prof.黃靜瑜(HUANG, Ching-Yu)
東海大學應用物理學系暨研究所/Department of Applied Physics, Tunghai University
Title：Majorana Zero Modes in Two-Dimensional Space
Abstract：In my talk, I will talk the topological properties of spin-polarized fermionic polar molecules loaded in a multilayer structure with the electric dipole moment polarized to the normal direction. When polar molecules are paired by attractive interlayer interaction, unpaired Majorana fermions can be macroscopically generated in the top and bottom layers in dilute density regime. We show that the resulting topological state is effectively composed by a bundle of one-dimensional (1D) Kitaev ladders labeled by in-plane momenta k and -k, and hence belongs to the BDI class characterized by the winding number, protected by the time-reversal symmetry. The Majorana surface modes exhibit a flat band at zero energy, fully gapped from Bogoliubov excitations in the bulk, and hence becomes an ideal system to investigate the interaction effects on quantum degenerate Majorana fermions. If I have time, I will introduce my recent work about 2D Paired Topological Superfluids of Rydberg Fermi Gases.
Place：B101, Gongquan Campuses, NTNU
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最後修改時間：2020-12-16 PM 3:33
