Theory-guided strategy expands the scope of measurable quantum interactions

Researchers at MIT have introduced a novel, theory-guided framework that enables the direct measurement of electron-phonon coupling—a fundamental interaction that influences the electrical, thermal, and superconducting properties of materials. By leveraging a previously overlooked interference effect in neutron scattering, this method allows scientists to probe material properties that were once considered nearly impossible to capture directly.

The study, published in Materials Today Physics, details how the research team reinterpreted neutron scattering mechanisms to isolate signals proportional to the strength of electron-phonon interactions. While current experimental equipment is only sensitive enough to detect weak signals, the authors argue that this approach validates the necessity for next-generation, high-intensity neutron sources, such as the Second Target Station at Oak Ridge National Laboratory. Such advancements could facilitate breakthroughs in designing materials for more efficient semiconductors and high-performance quantum computing components.

Source: news.mit.edu
Publication date: 24.07.2025