报告题目：Atomic Chiral Superfluids in Optical Lattices（光晶格中的原子手征超流）
报 告 人：李晓鹏 教授 (复旦大学)
报告时间：2017年5月15日（周一）10:00
报告地点：校本部G309
邀请人：张永平
报告摘要：Spontaneous chiral symmetry breaking plays a fundamental role in a variety of complex systems in Nature, including physical, chemical and also biological objects. Recently chiral symmetry breaking has attracted considerable interests in quantum many-body physics such as topological superconductivity in strontium ruthenates and exotic atomic Bose-Einstein condensates in optical lattices. This talk will be focusing on the interplay of chirality and spin degrees of freedom. I will present our finding of a chiral spin condensate with generic chirality-spin locking originated from interaction effects for spinor bosons in double-valley optical lattices. Our results are independent of microscopic details. For optical lattices that break the inversion symmetry, the chiral spin condensate exhibits spontaneous spin-Hall effects in spite of absence of bare spin-orbit couplings.
