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quant-ph2026
Low-energy spectrum of double-junction superconducting circuits in the Born-Oppenheimer approximation
Leo Uhre Jakobsen, Ksenia Shagalov, David Feldstein-Bofill +3
The superconductor-insulator-superconductor Josephson junction is the fundamental nonlinear element of superconducting circuits. Connecting two junctions in series gives rise to hi…
quant-ph2026
Controlled Parity of Cooper Pair Tunneling in a Hybrid Superconducting Qubit
David Feldstein-Bofill, Leo Uhre Jakobsen, Ksenia Shagalov +9
Superconducting quantum circuits derive their nonlinearity from the Josephson energy-phase relation. Besides the fundamental term, this relation can also contain higher Fou…