The authors introduce a universal criterion of two inequalities evaluated from the bare Hamiltonian to diagnose intrinsic superconducting diode effect and a graph-theoretic method to construct nonreciprocal models.
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Strong correlations in a Josephson junction with odd electrons spontaneously break symmetries to enable zero-field Josephson diode effect without magnetic order.
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Universal Criterion and Graph-Theoretic Construction of Intrinsic Superconducting Diode Effect
The authors introduce a universal criterion of two inequalities evaluated from the bare Hamiltonian to diagnose intrinsic superconducting diode effect and a graph-theoretic method to construct nonreciprocal models.
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Strong Correlation Drives Zero-Field Josephson Diode Effect
Strong correlations in a Josephson junction with odd electrons spontaneously break symmetries to enable zero-field Josephson diode effect without magnetic order.