Science

Even or odd numbers: A single molecule makes all the difference in the quantum world

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Based on a feed excerpt; full article content has not been acquired. Source evidence retrieved 16/10/2026, 14:25:25 UTC.

Briefings

Researchers at CIC nanoGUNE and CiQUS demonstrated that adding or removing a single molecule from a quantum chain alters its interaction with a superconductor. This finding highlights how microscopic changes in quantum systems can fundamentally shift macroscopic physical behavior, a critical principle for quantum technologies. The study was conducted in collaboration between the Quantum Detection Microscopy group and chemists at the University of Santiago de Compostela.

Key points

• Adding or removing a single molecule from a quantum chain fundamentally changes its interaction with a superconductor.
• The study involved collaboration between the Quantum Detection Microscopy group at CIC nanoGUNE and chemists at CiQUS of the University of Santiago de Compostela.

Context

This research addresses the fundamental question of how individual quantum components influence macroscopic superconducting properties, providing a new mechanism for controlling quantum states in nanoscale systems.

Limitations

The evidence is limited to a single published article from October 2026. No experimental data, specific numerical values, or additional study results are provided. The findings represent a theoretical demonstration rather than a completed experimental verification.

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