Quantum Information Processing with Delocalized Qubits under Global Control
- 18 July 2007
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 99 (3), 030501
- https://doi.org/10.1103/physrevlett.99.030501
Abstract
Conventional quantum computing schemes are incompatible with nanometer-scale “hardware,” where the closely packed spins cannot be individually controlled. We report the first experimental demonstration of a global control paradigm: logical qubits delocalize along a spin chain and are addressed via the two terminal spins. Using NMR studies on a three-spin molecule, we implement a globally clocked quantum mirror that outperforms the equivalent swap network. We then extend the protocol to support dense qubit storage and demonstrate this experimentally via Deutsch and Deutsch-Jozsa algorithms.This publication has 28 references indexed in Scilit:
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