## University COVID-19 update

### Questions about buildings and services? Visit the list of Modified Services.

Please note: The University of Waterloo is closed for all events until further notice.

# Events by date

## Friday, July 3, 2020

### Tutte Colloquium - Peter Selinger

Friday, July 3, 2020 — 3:30 PM EDT

Title: Number-theoretic methods in quantum computing

Speaker: Peter Selinger Affiliation: Dalhousie University Zoom: Please email Emma Watson

Abstract:

An important problem in quantum computing is the so-called \emph{approximate synthesis problem}: to find a quantum circuit, preferably as short as possible, that approximates a given target operation up to given $\epsilon$. For nearly two decades, from 1995 to 2012, the standard solution to this problem was the Solovay-Kitaev algorithm, which is based on geometric ideas. This algorithm produces circuits of size $O(\log^c(1/\epsilon))$, where $c$ is a constant approximately equal to $3.97$. It was a long-standing open problem whether the exponent $c$ could be reduced to $1$.

### July 2020

S M T W T F S
28
29
30
1
4
5
7
8
11
12
14
15
18
19
21
22
25
26
28
29
1
1. 2020 (71)
1. August (4)
2. July (17)
3. June (11)
4. May (6)
5. March (11)
6. February (11)
7. January (11)
2. 2019 (167)
1. December (5)
2. November (15)
3. October (18)
4. September (15)
5. August (9)
6. July (17)
7. June (18)
8. May (16)
9. April (9)
10. March (24)
11. February (13)
12. January (8)
3. 2018 (138)
4. 2017 (103)
5. 2016 (137)
6. 2015 (136)
7. 2014 (88)
8. 2013 (48)
9. 2012 (39)
10. 2011 (36)
11. 2010 (40)
12. 2009 (40)
13. 2008 (39)
14. 2007 (15)