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New Quantum State Unveiled: 'Anomalous Metallic Regime' Discovered

10/15/2025

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Summary

Story summary

Researchers at the Niels Bohr Institute, University of Copenhagen, led by Saulius Vaitiekenas of the Niels Bohr Institute, created an intermediate state between superconductivity and insulation, called the 'anomalous metallic regime'.
The team built a 'switchboard' of tiny superconducting islands to control their interactions.
The findings show quantum fluctuations drive this behavior.
The study, published in Physical Review Letters, includes contributions from Satyaki Sasmal and Maria Efthymiou-Tsironi.

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Story summary

Researchers at the Niels Bohr Institute, University of Copenhagen, led by Saulius Vaitiekenas of the Niels Bohr Institute, created an intermediate state between superconductivity and insulation, called the 'anomalous metallic regime'.
The team built a 'switchboard' of tiny superconducting islands to control their interactions.
The findings show quantum fluctuations drive this behavior.
The study, published in Physical Review Letters, includes contributions from Satyaki Sasmal and Maria Efthymiou-Tsironi.