Resources for universal quantum state manipulation and engineering

Details Resources for universal quantum state manipulation and engineering Resources for universal quantum state manipulation and engineering

2009-08-11

arxiv.org/abs/0908.1476v1

Phys. Rev. A 79, 062321 (2009)

Physics

Quantum Physics

Scientific paper

We investigate which non-Gaussian resources are needed, in addition to Gaussian operations and measurements, for implementation of arbitrary quantum gates on multimode quantum states of light. We show that an arbitrary set of states with finite expansion in Fock basis is sufficient for this task. As an illustration we present an explicit scheme for probabilistic implementation of the nonlinear sign gate using resource non-Gaussian states and Gaussian operations.

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