Scientists have discovered a revolutionary way to control superconductivity by twisting ultra-thin layers of a superconducting material. This method allows precise tuning of the superconducting gap, a crucial factor for making quantum devices more efficient.
The article from SciTechDaily discusses a groundbreaking discovery in the field of quantum physics and superconductivity. Researchers have found that by introducing a tiny twist between two layers of a superconducting material, specifically a high-temperature superconductor, they can significantly alter its electronic properties. This twist, when applied to materials like bismuth strontium calcium copper oxide (BSCCO), leads to the emergence of new quantum states, including the potential for topological superconductivity. This state is of great interest because it could lead to the development of fault-tolerant quantum computers due to its ability to host Majorana zero modes, which are their own antiparticles. The twist effectively modulates the interlayer coupling, creating conditions where electrons can pair up in ways that are conducive to these exotic quantum phenomena. This discovery not only deepens our understanding of high-temperature superconductors but also opens up new avenues for technological applications in quantum computing and beyond.
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