Physics#Superconductivity, Quantum Transport, Non-Hermitian Physics🔬 ResearchAnalyzed: Jan 3, 2026 17:08
Non-Hermitian Josephson Junctions and Supercurrent
Analysis
This paper explores the electronic transport in a specific type of Josephson junction, focusing on the impact of non-Hermitian Hamiltonians. The key contribution is the identification of a novel current component arising from the imaginary part of Andreev levels, particularly relevant in the context of broken time-reversal symmetry. The paper proposes an experimental protocol to detect this effect, offering a way to probe non-Hermiticity in open junctions beyond the usual focus on exceptional points.
Key Takeaways
- •Investigates Josephson junctions with non-Hermitian Hamiltonians.
- •Identifies a novel current component related to the imaginary part of Andreev levels.
- •Highlights the role of broken time-reversal symmetry.
- •Proposes an experimental protocol for detection.
- •Offers a way to probe non-Hermiticity beyond exceptional points.
Reference
“A novel contribution arises that is proportional to the phase derivative of the levels broadening.”