第11回 物理工学科教室談話会(講師:Prof. Kenneth Burch)

日時: 11月20日(月) 10:30-12:00
場所: 工学部6号館1階107号室(中会議室)
講師: Prof. Kenneth Burch
所属: Boston College
題目: Observing Topology with Light in Magnetic 2D Materials

In recent years there has been considerable excitement about numerous proposals to realize non-Abelian Anyons, particles whose phase upon exchange depends on the path taken. Their observation signals the emergence of new topological phases and offers a new route to quantum computation. I will outline the reasons to expect such particles in a particular quantum spin-liquid, a phase where there is long range entanglement but no magnetic order. I will then describe a particularly promising van-der-Walls material for realizing such particles, RuCl3. I will describe our infrared and Raman results that suggest the material is close to the Kitaev quantum spin liquid and contains fractionalized particles. Time permitting I will also discuss our recent results on exfoliating this material as well as our efforts to manipulate topology in Weyl semimetals optically.