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cond-mat.str-el2026
Cooper pair charge Kondo effect in a hybrid quantum dot - superconductor device
Luca Gonfiantini, Lorenzo Maffi, Michele Burrello
We consider a tunable hybrid device composed of four quantum dots and a floating superconducting island -- the so-called poor man's tetron -- close to its effective particle-hole s…
cond-mat.mes-hall2026
Cooper quartets and fractional vortices in frustrated Josephson junction dice arrays
Erik Lennart Weerda, Olav F. Syljuåsen, Matteo Rizzi +1
Superconductivity mediated by Cooper quartets of charge 4e is a phenomenon of key importance for both the understanding of certain exotic superconductors and the engineering of qua…