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Proceedings Paper

Pulse-controlled quantum gate sequences on a strongly coupled qubit chain
Author(s): Holger Frydrych; Michael Marthaler; Gernot Alber
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Paper Abstract

We propose a selective dynamical decoupling scheme on a chain of permanently coupled qubits, which is capable of dynamically suppressing any coupling in the chain by applying sequences of local pulses to the individual qubits. We demonstrate how this pulse control can be used to implement the two-qubit CNS gate on any two neighboring qubits. A sequence of these CNS gates is then applied on the chain to entangle all the qubits in a GHZ state. We find that high entanglement fidelities can be achieved as long as the total number of coupled qubits is not too large.

Paper Details

Date Published: 7 May 2015
PDF: 9 pages
Proc. SPIE 9505, Quantum Optics and Quantum Information Transfer and Processing 2015, 95050G (7 May 2015); doi: 10.1117/12.2178545
Show Author Affiliations
Holger Frydrych, Technische Univ. Darmstadt (Germany)
Michael Marthaler, Karlsruher Institut für Technologie (Germany)
Gernot Alber, Technische Univ. Darmstadt (Germany)

Published in SPIE Proceedings Vol. 9505:
Quantum Optics and Quantum Information Transfer and Processing 2015
Konrad Banaszek; Christine Silberhorn, Editor(s)

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