Magic state distillation and gate compilation in quantum algorithms for quantum chemistry
Journal Article (Review;Journal)
Quantum algorithms for quantum chemistry map the dynamics of electrons in a molecule to the dynamics of a coupled spin system. To reach chemical accuracy for interesting molecules, a large number of quantum gates must be applied which implies the need for quantum error correction and fault-tolerant quantum computation. Arbitrary fault-tolerant operations can be constructed from a small, universal set of fault-tolerant operations by gate compilation. Quantum chemistry algorithms are compiled by decomposing the dynamics of the coupled spin-system using a Trotter formula, synthesizing the decomposed dynamics using Clifford operations and single-qubit rotations, and finally approximating the single-qubit rotations by a sequence of fault-tolerant single-qubit gates. Certain fault-tolerant gates rely on the preparation of specific single-qubit states referred to as magic states. As a result, gate compilation and magic state distillation are critical for solving quantum chemistry problems on a quantum computer. We review recent progress that has improved the efficiency of gate compilation and magic state distillation by orders of magnitude.
Full Text
Duke Authors
Cited Authors
- Trout, CJ; Brown, KR
Published Date
- October 1, 2015
Published In
Volume / Issue
- 115 / 19
Start / End Page
- 1296 - 1304
Electronic International Standard Serial Number (EISSN)
- 1097-461X
International Standard Serial Number (ISSN)
- 0020-7608
Digital Object Identifier (DOI)
- 10.1002/qua.24856
Citation Source
- Scopus