Time-optimized quantum gates on linear three-qubit systems with indirect Ising coupling

Daxiu Wei, Andreas Spörl, Yan Chang, Navin Khaneja, Xiaodong Yang, Steffen J. Glaser

Research output: Contribution to journalArticlepeer-review

2 Scopus citations

Abstract

Optimal control based numerical algorithms were used to explore the minimum duration of a variety of quantum gates between the first and the last spins in a linear spin chain with identical next neighbor Ising couplings. The true SWAP gate, the planar SWAP gate and the generation of an effective direct Ising coupling between the first and the third spin were studied. Pulse sequences with shortest durations were experimentally implemented in a three-qubit NMR system. The experimental results show the accuracy and feasibility of the optimized quantum gates.

Original languageEnglish
Pages (from-to)143-150
Number of pages8
JournalChemical Physics Letters
Volume612
DOIs
StatePublished - 18 Sep 2014

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