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Nano-diamond qubits and photonic crystals: Milestone reached on the path to integrated quantum technology

Date:
December 1, 2010
Source:
American Institute of Physics
Summary:
Researchers in Germany have successfully fabricated a rudimentary quantum computing hybrid system using electronic excitations in nano-diamonds as qubits and optical nanostructures, so-called photonic crystals with tailored optical properties. This architecture may allow integration of multi-qubit systems on a single micrometer-sized chip for future quantum computers.

Quantum information processing is arguably one of the most fascinating facets of modern quantum physics. A quantum computer operates with quantum bits (qubits) as units of information. Obeying the laws of quantum mechanics, such a computer would be capable of addressing several of the most difficult computational tasks unsolvable with present technology. In the past few decades, scientists learned to perform room-sized experiments to optically control and read out a small number of qubits.

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Now, researchers in Germany have successfully fabricated a rudimentary quantum computing hybrid system using electronic excitations in nano-diamonds as qubits and optical nanostructures, so-called photonic crystals with tailored optical properties. This architecture may allow integration of multi-qubit systems on a single micrometer-sized chip for future quantum computers.

"Our results suggest a strategy for scaling up quantum information to large-scale systems, which has yet to be done," says Janik Wolters, researcher, at Humboldt Universität in Berlin. "We regard our experiment as a milestone on the long road toward on-chip integrated quantum information processing systems, bringing the dream of a quantum computer closer to reality."

Wolters and colleagues present their research in the American Institute of Physics' Applied Physics Letters.


Story Source:

The above story is based on materials provided by American Institute of Physics. Note: Materials may be edited for content and length.


Journal Reference:

  1. Janik Wolters, Andreas W. Schell, Günter Kewes, Nils Nüsse, Max Schoengen, Henning Döscher, Thomas Hannappel, Bernd Löchel, Michael Barth, Oliver Benson. Enhancement of the zero phonon line emission from a single nitrogen vacancy center in a nanodiamond via coupling to a photonic crystal cavity. Applied Physics Letters, 2010; 97 (14): 141108 DOI: 10.1063/1.3499300

Cite This Page:

American Institute of Physics. "Nano-diamond qubits and photonic crystals: Milestone reached on the path to integrated quantum technology." ScienceDaily. ScienceDaily, 1 December 2010. <www.sciencedaily.com/releases/2010/11/101130100403.htm>.
American Institute of Physics. (2010, December 1). Nano-diamond qubits and photonic crystals: Milestone reached on the path to integrated quantum technology. ScienceDaily. Retrieved March 4, 2015 from www.sciencedaily.com/releases/2010/11/101130100403.htm
American Institute of Physics. "Nano-diamond qubits and photonic crystals: Milestone reached on the path to integrated quantum technology." ScienceDaily. www.sciencedaily.com/releases/2010/11/101130100403.htm (accessed March 4, 2015).

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