Draft schedule for Maissam Barkeshli'svisit in the week Mon, 11/30, to Thu, 12/3 ahead of the Q-meeting.
Please add a timeslot in this 4-day period by editing this wiki-page:
Monday, 11/30
Tuesday, 12/1
10:30 am, Matt Hastings, Elings 2235
11.30am Simon Trebst, Elings 2231
12:30pm Q-Seminar
3:00pm Parsa Bonderson, Elings 2233
5:00pm Ribhu Kaul Elings 2229
7:00pm Speaker Dinner
Wednesday, 12/2
3:30pm Xiao-Liang Qi, Elings 2239
Thursday, 12/3
10:30am, Zhenghan Wang, Elings 2237
Talk / Q-seminar Continuous Topological Phase Transitions in Non-Abelian Quantum Hall States
Abstract: Topological phases of matter cannot be characterized by any
pattern of symmetry-breaking, and as a result, describing phase
transitions between them is a significant theoretical challenge. In
the case of non-Abelian phases, there are only a few examples of phase
transitions that are theoretically understood. In this talk I will
describe a possible continuous quantum phase transition from a
(p,p,p-3) bilayer fractional quantum Hall (FQH) state to the Z_4
parafermion non-Abelian state, driven by increasing interlayer
tunneling and/or interlayer repulsion. Previously used methods have
failed because the transition from the (p,p,p-3) state appears to be
driven by the condensation of anyons. After presenting a recently
developed effective field theory for the Z_4 parafermion state, I will
explain how it can be used, along with other methods, to shed light on
the nature of this transition.
Please add a timeslot in this 4-day period by editing this wiki-page:
Monday, 11/30
Tuesday, 12/1
10:30 am, Matt Hastings, Elings 2235
11.30am Simon Trebst, Elings 2231
12:30pm Q-Seminar
3:00pm Parsa Bonderson, Elings 2233
5:00pm Ribhu Kaul Elings 2229
7:00pm Speaker Dinner
Wednesday, 12/2
3:30pm Xiao-Liang Qi, Elings 2239
Thursday, 12/3
10:30am, Zhenghan Wang, Elings 2237
Talk / Q-seminar
Continuous Topological Phase Transitions in Non-Abelian Quantum Hall States
Abstract: Topological phases of matter cannot be characterized by any
pattern of symmetry-breaking, and as a result, describing phase
transitions between them is a significant theoretical challenge. In
the case of non-Abelian phases, there are only a few examples of phase
transitions that are theoretically understood. In this talk I will
describe a possible continuous quantum phase transition from a
(p,p,p-3) bilayer fractional quantum Hall (FQH) state to the Z_4
parafermion non-Abelian state, driven by increasing interlayer
tunneling and/or interlayer repulsion. Previously used methods have
failed because the transition from the (p,p,p-3) state appears to be
driven by the condensation of anyons. After presenting a recently
developed effective field theory for the Z_4 parafermion state, I will
explain how it can be used, along with other methods, to shed light on
the nature of this transition.