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Probing the quantum...
Probing the quantum vacuum with an artificial atom in front of a mirror
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- Hoi, Io Chun, 1984 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Frisk Kockum, Anton, 1987 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Tornberg, Lars, 1979 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Pourkabirian, Arsalan, 1983 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Johansson, Göran, 1971 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Delsing, Per, 1959 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Wilson, Christopher, 1974 (author)
- University of Waterloo
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(creator_code:org_t)
- 2015
- 2015
- English.
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In: Nature Physics. - 1745-2481 .- 1745-2473. ; 11:12, s. 1045-1049
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http://dx.doi.org/10...
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https://doi.org/10.1...
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Abstract
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- Quantum fluctuations of the vacuum are both a surprising and fundamental phenomenon of nature. Understood as virtual photons, they still have a very real impact, for instance, in the Casimir effects and the lifetimes of atoms. Engineering vacuum fluctuations is therefore becoming increasingly important to emerging technologies. Here, we shape vacuum fluctuations using a superconducting circuit analogue of a mirror, creating regions in space where they are suppressed. Moving an artificial atom through these regions and measuring the spontaneous emission lifetime of the atom provides us with the spectral density of the vacuum fluctuations. Using the paradigm of waveguide quantum electrodynamics, we significantly improve over previous studies of the interaction of an atom with its mirror image, observing a spectral density as low as 0.02 quanta, a factor of 50 below the mirrorless result. This demonstrates that we can hide the atom from the vacuum, even though it is exposed in free space.
Subject headings
- NATURVETENSKAP -- Fysik -- Atom- och molekylfysik och optik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Atom and Molecular Physics and Optics (hsv//eng)
Publication and Content Type
- art (subject category)
- ref (subject category)
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- By the author/editor
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Hoi, Io Chun, 19 ...
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Frisk Kockum, An ...
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Tornberg, Lars, ...
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Pourkabirian, Ar ...
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Johansson, Göran ...
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Delsing, Per, 19 ...
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show more...
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Wilson, Christop ...
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- About the subject
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Physical Science ...
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and Atom and Molecul ...
- Articles in the publication
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Nature Physics
- By the university
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Chalmers University of Technology