Institut Néel Grenoble

• Faits marquants 2012
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Superconductivity is due to the condensation of a fraction of the electrons into cooper pairs. A Josephson junction is a short bridge between two superconductors which allows a coherent transfer of cooper pairs. connecting three superconductors in a narrow region realizes a ”bijunc- tion”. In such bijunctions, part of the superconducting currents must flow as correlated cooper pairs, which are referred to as ”electron quartets”. New quantum correlations could be revealed in a bijunction, which is characterized by two phase variables coupled together, instead of one. Full text

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