Josephson effect

Target entity: Josephson effect
Context triple: [Giaever tunneling, relatedTo, Josephson effect]

• A. Meissner effect
  The Meissner effect is the phenomenon in which a superconductor expels magnetic fields from its interior when cooled below its critical temperature, leading to perfect diamagnetism.
• B. Josephson constant
  The Josephson constant is a fundamental physical constant that relates frequency to voltage in superconducting Josephson junctions and underpins the quantum standard of voltage.
• C. BCS theory of superconductivity
  The BCS theory of superconductivity is a fundamental microscopic theory that explains superconductivity through the formation of Cooper pairs of electrons and their collective quantum behavior in a solid.
• D. de Haas–van Alphen effect
  The de Haas–van Alphen effect is a quantum oscillatory phenomenon in metals where the magnetization varies periodically with applied magnetic field, allowing precise mapping of the electronic structure and Fermi surface.
• E. Bardeen–Stephen model of flux flow in superconductors
  The Bardeen–Stephen model of flux flow in superconductors is a theoretical framework that describes how magnetic vortices move and dissipate energy in type-II superconductors under applied currents and fields.
• F. None of above. chosen
• G. Unsure - the case is ambiguous/there is not enough information to decide.

Target entity: Josephson effect
Target entity description: The Josephson effect is a quantum mechanical phenomenon in which a supercurrent flows between two superconductors separated by a thin insulating barrier, enabling devices like SQUIDs and superconducting qubits.

• A. Meissner effect
  The Meissner effect is the phenomenon in which a superconductor expels magnetic fields from its interior when cooled below its critical temperature, leading to perfect diamagnetism.
• B. Josephson constant
  The Josephson constant is a fundamental physical constant that relates frequency to voltage in superconducting Josephson junctions and underpins the quantum standard of voltage.
• C. BCS theory of superconductivity
  The BCS theory of superconductivity is a fundamental microscopic theory that explains superconductivity through the formation of Cooper pairs of electrons and their collective quantum behavior in a solid.
• D. de Haas–van Alphen effect
  The de Haas–van Alphen effect is a quantum oscillatory phenomenon in metals where the magnetization varies periodically with applied magnetic field, allowing precise mapping of the electronic structure and Fermi surface.
• E. Bardeen–Stephen model of flux flow in superconductors
  The Bardeen–Stephen model of flux flow in superconductors is a theoretical framework that describes how magnetic vortices move and dissipate energy in type-II superconductors under applied currents and fields.
• F. None of above. chosen