Characterizing measurement-based quantum gates in quantum many-body systems using correlation functions

Details Characterizing measurement-based quantum gates in quantum many-body systems using correlation functions Characterizing measurement-based quantum gates in quantum many-body systems using correlation functions

2009-04-17

arxiv.org/abs/0904.2609v1

Can. J. Phys., 87, 219 (2009)

Physics

Quantum Physics

7 pages, 2 figures. Proceedings paper for an invited talk at Theory Canada 4 (2008), published in the Canadian Journal of Phys

Scientific paper

10.1139/P08-112

In measurement-based quantum computation (MBQC), local adaptive measurements are performed on the quantum state of a lattice of qubits. Quantum gates are associated with a particular measurement sequence, and one way of viewing MBQC is that such a measurement sequence prepares a resource state suitable for `gate teleportation'. We demonstrate how to quantify the performance of quantum gates in MBQC by using correlation functions on the pre-measurement resource state.

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