Department of Physics, National University of Singapore
Condensed Matter Seminar Series
To receive email notifications of this seminar series, please send an email to zouliujun@gmail.com to request.
Condensed Matter Seminar Series
To receive email notifications of this seminar series, please send an email to zouliujun@gmail.com to request.
Upcoming Seminars
(Both online and in-person seminars will be broadcast via Zoom.)
(Click the upper right corner of this page to see the previous seminars and their recordings.)
Time: 9am, September 19 2025, GMT+8
Location: Online
Zoom: https://nus-sg.zoom.us/j/89675000481?pwd=tDWM5CXGfAdPYd3ZexIpWwXx2Nx6bP.1
Password: 546550
Speaker: Yimu Bao
Title: Designs from magic-augmented Clifford circuits
Abstract: In this talk I will introduce magic-augmented Clifford circuits -- architectures in which Clifford circuits are preceded and/or followed by constant-depth circuits of non-Clifford ("magic") gates -- as a resource-efficient way to realize approximate k-designs. We prove that shallow Clifford circuits, when augmented with constant-depth circuits of magic gates, can generate approximate unitary and state k-designs with bounded relative error. The total circuit depth for these constructions improves upon previous results for small k>=4. The required number of magic gates is further reduced when considering k-designs with bounded additive error. We show that shallow Clifford circuits followed by O(k^2) single-qubit magic gates can generate an additive-error state k-design. I will also provide classical statistical mechanics understanding of our results and discuss the no-go theorems on design generation.
There is no seminar during the week of September 22 2025 because it is the reading week at NUS.
Time: 9am, October 3 2025, GMT+8
Location: Online
Zoom: https://nus-sg.zoom.us/j/89675000481?pwd=tDWM5CXGfAdPYd3ZexIpWwXx2Nx6bP.1
Password: 546550
Speaker: Tomotaka Kuwahara
Title: TBA
Abstract: TBA
Time: 11am, October 10 2025, GMT+8
Location: Online
Zoom: https://nus-sg.zoom.us/j/89675000481?pwd=tDWM5CXGfAdPYd3ZexIpWwXx2Nx6bP.1
Password: 546550
Speaker: Ethan Lake
Title: TBA
Abstract: TBA
Time: 9am, October 10 2025, GMT+8
Location: Online
Zoom: https://nus-sg.zoom.us/j/89675000481?pwd=tDWM5CXGfAdPYd3ZexIpWwXx2Nx6bP.1
Password: 546550
Speaker: Leonardo Lessa
Title: TBA
Abstract: TBA