Physicists Discover Strange Array of Links and Knots in Quantum Matter

May 27, 2022

"As physicists dig deeper into the quantum realm, they are discovering an infinitesimally small world composed of a strange and surprising array of links, knots, and winding. Some quantum materials exhibit magnetic whirls called skyrmions — unique configurations sometimes described as “subatomic hurricanes.” Others host a form of superconductivity that twists into vortices.

Now, in an article published in the journal Nature, a Princeton-led team of scientists has discovered that electrons in quantum matter can link one another in strange new ways. The work brings together ideas in three areas of science – condensed matter physics, topology, and knot theory – in a new way, raising unexpected questions about the quantum properties of electronic systems."

Physicists Discover Strange Array of Links and Knots in Quantum Matter by Princeton University.

Reference: “Observation of a linked-loop quantum state in a topological magnet,” by Ilya Belopolski, Guoqing Chang, Tyler A. Cochran, Zi-Jia Cheng, Xian P. Yang, Cole Hugelmeyer, Kaustuv Manna, Jia-Xin Yin, Guangming Cheng, Daniel Multer, Maksim Litskevich, Nana Shumiya, Songtian S. Zhang, Chandra Shekhar, Niels B. M. Schröter, Alla Chikina, Craig Polley, Balasubramanian Thiagarajan, Mats Leandersson, Johan Adell, Shin-Ming Huang, Nan Yao, Vladimir N. Strocov, Claudia Felser and M. Zahid Hasan, 27 April 2022, Nature.
DOI: 10.1038/s41586-022-04512-8