Two-dimensional cluster-state preparation with linear ion traps
Journal Article
·
· Physical Review. A
- Fachbereich Physik, Universitaet Siegen, 57068 Siegen (Germany)
We present schemes to prepare two-dimensional cluster states [H. J. Briegel and R. Raussendorf, Phys. Rev. Lett. 86, 910 (2001)] with atomic ions confined in a microstructured linear ion trap and coupled by an engineered spin-spin interaction. In particular, we show how to prepare a nx2 cluster state by creating a linear cluster state and adding third-neighbor entanglement using selective recoupling techniques. The scheme is based on the capabilities provided by segmented linear Paul traps to confine ions in local potential wells and to separate and transport ions between these wells. Furthermore, we consider creating three- and four-qubit cluster states by engineering the coupling matrix such that through the periodicity of the time evolution unwanted couplings are canceled. All entangling operations are achieved by switching of voltages and currents and do not require interaction with laser light.
- OSTI ID:
- 21300832
- Journal Information:
- Physical Review. A, Journal Name: Physical Review. A Journal Issue: 5 Vol. 79; ISSN 1050-2947; ISSN PLRAAN
- Country of Publication:
- United States
- Language:
- English
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