Cavity-Mediated Coherent Coupling between Distant Quantum Dots.
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Nicolí G
Solid State Physics Laboratory, ETH Zürich, 8093 Zürich, Switzerland.
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Ferguson MS
Institute for Theoretical Physics, ETH Zürich, 8093 Zürich, Switzerland.
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Rössler C
Infineon Technologies Austria, Siemensstraße 2, 9500 Villach, Austria.
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Wolfertz A
Solid State Physics Laboratory, ETH Zürich, 8093 Zürich, Switzerland.
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Blatter G
Institute for Theoretical Physics, ETH Zürich, 8093 Zürich, Switzerland.
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Ihn T
Solid State Physics Laboratory, ETH Zürich, 8093 Zürich, Switzerland.
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Ensslin K
Solid State Physics Laboratory, ETH Zürich, 8093 Zürich, Switzerland.
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Reichl C
Solid State Physics Laboratory, ETH Zürich, 8093 Zürich, Switzerland.
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Wegscheider W
Solid State Physics Laboratory, ETH Zürich, 8093 Zürich, Switzerland.
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Zilberberg O
Institute for Theoretical Physics, ETH Zürich, 8093 Zürich, Switzerland.
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Published in:
- Physical review letters. - 2018
English
Scalable architectures for quantum information technologies require one to selectively couple long-distance qubits while suppressing environmental noise and cross talk. In semiconductor materials, the coherent coupling of a single spin on a quantum dot to a cavity hosting fermionic modes offers a new solution to this technological challenge. Here, we demonstrate coherent coupling between two spatially separated quantum dots using an electronic cavity design that takes advantage of whispering-gallery modes in a two-dimensional electron gas. The cavity-mediated, long-distance coupling effectively minimizes undesirable direct cross talk between the dots and defines a scalable architecture for all-electronic semiconductor-based quantum information processing.
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Language
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Open access status
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green
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Identifiers
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Persistent URL
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https://sonar.ch/global/documents/266226
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