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Quantum physics

Casimir force changes sign

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This quantum attractive force induces measurable effects between ultrasmall mechanical components. New calculations indicate that systems could be engineered in which Casimir forces are repulsive.

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Figure 1: A Casimir-like effect at sea.

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Authors and Affiliations

  1. the Department of Electrical Engineering, Technion, Haifa, 32000, Israel

    Eyal Buks

  2. the Condensed Matter Physics Group, Caltech 114-36, Pasadena, 91125, California, USA

    Michael L. Roukes

Authors
  1. Eyal Buks
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  2. Michael L. Roukes
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Correspondence to Eyal Buks or Michael L. Roukes.

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Buks, E., Roukes, M. Casimir force changes sign. Nature 419, 119–120 (2002). https://doi.org/10.1038/419119a

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