Time：Mar 25 2021 10:30-11:30
Tencent Meeting：ID：821202474 Password：0325
Title：Trotterization and Trotter Error 

Host：Dong Liu，Department of Physics， Tsinghua University

Abstract：

The Lie-Trotter formula, together with its higher order generalizations, provides a simple approach to decomposing the exponential of a sum of operators, commonly known as Trotterization in quantum computation. This talk will present our recent results on the application of these formulas to digital quantum simulation. Topics to be covered include the  implementation of Trotterization in the quantum circuit model, traditional bound on the Trotter error with 1-norm scaling, faster Trotterization using randomization and symmetry protection, and improved analysis of Trotter error with commutator scaling.

Based on arXiv:1711.10980, arXiv:1805.08385, arXiv:1901.00564, arXiv:1912.08854, arXiv:2006.16248, arXiv:2012.09194.

About the Speaker：

Yuan Su is a Postdoctoral Scholar Research Associate working on quantum computing at the Institute for Quantum Information and Matter, California Institute of Technology. He obtained his doctorate degree in Computer Science from the University of Maryland, under the supervision of Dr. Andrew Childs. His research focuses mainly on the theoretical side of quantum simulation, with the purpose of understanding and optimizing the performance of quantum algorithms for simulating quantum physics. He is a recipient of the 2019 Google PhD Fellowship in quantum computing.