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Solving Superconducting Mystery with Supercomputer Computations

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Some of the inner wiring of the Frontera supercomputer.

The researchers used the Frontera supercomputer at the Texas Advanced Computing Center to replicate (in simulation) experiments carried out at the Stanford Synchrotron Radiation Lightsource.

Credit: Texas Advanced Computing Center

A multi-institutional team of researchers has demonstrated that phonons—vibrations discharged from oscillating crystal atoms—contribute to superconductivity in copper-based materials.

Clemson University's Yao Wang used the Texas Advanced Computing Center's Frontera supercomputer to simulate experiments conducted at Stanford University's Synchrotron Radiation Lightsource.

The results relied on variational non-Gaussian exact diagonalization, a mathematical and algorithmic technique for executing matrix multiplications on billions of elements.

Wang said the results describe a method for manipulating Coulomb interactions, the attraction or repulsion of particles due to their electric charge.

"This research gives new insights into the mystery of cuprate superconductivity that may lead to higher temperature superconducting materials and devices," said the National Science Foundation's Daryl Hess. "They may find their way into future cellphones and quantum computers."

From SciTechDaily
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