Experimental comparison of two quantum computing architectures

We run a selection of algorithms on two state-of-the-art 5-qubit quantum computers that are based on different technology platforms. One is a publicly accessible superconducting transmon device (www. ibm.com/ibm-q) with limited connectivity, and the other is a fully connected trapped-ion system. Eve...

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Vydané v:Proceedings of the National Academy of Sciences - PNAS Ročník 114; číslo 13; s. 3305
Hlavní autori: Linke, Norbert M, Maslov, Dmitri, Roetteler, Martin, Debnath, Shantanu, Figgatt, Caroline, Landsman, Kevin A, Wright, Kenneth, Monroe, Christopher
Médium: Journal Article
Jazyk:English
Vydavateľské údaje: United States 28.03.2017
Predmet:
quantum computing architecture
quantum information
quantum computing
quantum information science
quantum physics
ISSN:1091-6490, 1091-6490
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Shrnutí:We run a selection of algorithms on two state-of-the-art 5-qubit quantum computers that are based on different technology platforms. One is a publicly accessible superconducting transmon device (www. ibm.com/ibm-q) with limited connectivity, and the other is a fully connected trapped-ion system. Even though the two systems have different native quantum interactions, both can be programed in a way that is blind to the underlying hardware, thus allowing a comparison of identical quantum algorithms between different physical systems. We show that quantum algorithms and circuits that use more connectivity clearly benefit from a better-connected system of qubits. Although the quantum systems here are not yet large enough to eclipse classical computers, this experiment exposes critical factors of scaling quantum computers, such as qubit connectivity and gate expressivity. In addition, the results suggest that codesigning particular quantum applications with the hardware itself will be paramount in successfully using quantum computers in the future.
Bibliografia:ObjectType-Article-1
SourceType-Scholarly Journals-1
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ISSN:1091-6490
1091-6490
DOI:10.1073/pnas.1618020114