Wu Lab

Topological insulators
& superconductors

Science 354, 1124 (2016)

Nat. Phys. 13, 350 (2017)

Nat. Photonics. 12, 73 (2018)

Research Interests

We develop and utilize time-resolved and nonlinear optical techniques in both the terahertz (THz) and optical frequency regimes to study and control properties of materials broadly known as ''quantum materials’’, which are topological and correlated materials. In this class of matter, collective phases and properties defy a classical description, often leading to an exotically rich range of emergent phenomena. We are particular interested in topological materials and quantum magnets. Our ultimate goals are to understand/discover new physics of these materials and to control them by light or strain or electrical gating to apply them to the next generation of quantum computers, solar cells and memory devices.

Recent News

Our work on optical conductivity in CoSi is published in PNAS. (10/2020) See an article in Penn Today.
Our collaborative work on Mn3Sn is published in Science Advances. (08/2020)
Our work on e-h asymmetry in Sb2Te3 is published in Nano Letters 40 days after submission. (05/2020)
Congrats to Adithya Sriram, heading to Graduate School @Stanford, with a NSF GRF. Good luck! (04/2020)
We thank Gordon and Betty Moore Foundation for providing funding to support the EPiQS young investigator network and community build-up at Penn. (02/2020)
An article in Penn today introduced our research. (11/2019)
Xingyue joined the group as a graduate student. (08/2019)
Liang received the 2019 McMillan Award for outstanding contributions in condensed matter physics. (07/2019) See Almanac news.
Liang received the ARO YIP Award. (06/2019)
Graduate student Jonathan joined the group. (05/2019)
Zhuoliang joined the group as the first graduate student. (08/2018)
Liang arrived at Penn. (07/2018)
Liang was recognized as "30 under 30" in Science by Forbes Magazine. (01/2018).
Liang received the APS 2017 Richard Greene Dissertation Award in Experimental Condensed Matter Physics. (03/2017).