Measuring Vacuum Polarization with Josephson Junctions

Abstract

We argue that the vacuum polarization by the virtual electron-positron pairs can be measured by studying a Josephson junction in a strong magnetic field. The vacuum polarization results in a weak dependence of the Josephson constant on the magnetic field strength which is within the reach of the existing experimental techniques.

4 pages, 2 figures, LaTeX

References in corpus (1)

• Quantum Hall Effect in Quantum Electrodynamics

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