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Scalable Quantum Integrated Circuits on Superconducting Two-Dimensional Electron Gas Platform
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Green's function methods for computing supercurrents in Josephson junctions.

Eduardo R Mucciolo1, Jouko Nieminen2, Xiao Xiao3

  • 1Department of Physics, University of Central Florida, 4111 Libra Drive, Orlando, FL 32816-2385 , USA, Orlando, Florida, 32816-8005, United States.

Reports on Progress in Physics. Physical Society (Great Britain)
|June 11, 2026
PubMed
Summary
This summary is machine-generated.

This review details a Green

Keywords:
Green's functionsJosephson junctionsatomistic modeling

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Area of Science:

  • Condensed Matter Physics
  • Quantum Computing

Background:

  • Josephson junctions (JJs) are crucial for quantum devices and exhibit unique physics.
  • Novel quantum materials enable new functionalities in JJs, increasing their importance.
  • Accurate modeling is essential for predictive control and atomistic understanding of JJs.

Purpose of the Study:

  • To present an in-depth discussion of a Green's function-based formalism for computing supercurrents in JJs.
  • To provide a comprehensive reference for researchers and practitioners interested in modeling JJs.

Main Methods:

  • A Green's function-based formalism is presented for calculating supercurrents.
  • The formulation is designed for large-scale atomistic simulations.
  • It covers both direct current (dc) and alternating current (ac) supercurrents.

Main Results:

  • The review details a Green's function formalism for supercurrent computation in JJs.
  • The method is suitable for large-scale, atomistic simulations.
  • Both dc and ac supercurrents can be computed using this formalism.

Conclusions:

  • The Green's function formalism offers a powerful tool for modeling JJs.
  • This approach facilitates predictive control and atomistic understanding of JJ behavior.
  • The review serves as a timely resource for advancing JJ research and applications.