Andrew Childs

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Professor and Co-Director
3100F Atlantic Building
(301) 405-2329

Andrew Childs, co-director of QuICS, is a professor in the Department of Computer Science and the Institute for Advanced Computer Studies (UMIACS).

Childs's research interests are in the theory of quantum information processing, especially quantum algorithms.

He has explored the computational power of quantum walk, providing an example of exponential speedup, demonstrating computational universality, and constructing algorithms for problems including search and formula evaluation. Childs has also developed fast quantum algorithms for simulating Hamiltonian dynamics. His other areas of interest include quantum query complexity and quantum algorithms for algebraic problems.

Before coming to UMD, Childs was a DuBridge Postdoctoral Scholar at Caltech from 2004-2007 and a faculty member in Combinatorics & Optimization and the Institute for Quantum Computing at the University of Waterloo from 2007-2014. He is also a Senior Fellow of the Canadian Institute for Advanced Research.

Childs received his doctorate in physics from MIT in 2004.

Courses

Publications

2007

M. Aschbacher, Childs, A. M., and Wocjan, P., The limitations of nice mutually unbiased bases, Journal of Algebraic Combinatorics, vol. 25, no. 2, pp. 111 - 123, 2007.

2006

A. M. Childs, Leung, D. W., and Lo, H. - K., Two-way quantum communication channels, International Journal of Quantum Information, vol. 04, no. 01, pp. 63 - 83, 2006.

2005

2004

A. M. Childs and Goldstone, J., Spatial search by quantum walk, Physical Review A, vol. 70, no. 2, 2004.
A. M. Childs and Goldstone, J., Spatial search and the Dirac equation, Physical Review A, vol. 70, no. 4, 2004.
A. M. Childs, Leung, D. W., and Vidal, G., Reversible simulation of bipartite product Hamiltonians, IEEE Transactions on Information Theory, vol. 50, no. 6, pp. 1189 - 1197, 2004.

2003

2002

2001

A. M. Childs, Farhi, E., and Gutmann, S., An example of the difference between quantum and classical random walks, Quantum Information Processing, vol. 1, no. 1/2, pp. 35 - 43, 2001.