India, May 26 -- Scientists have found a new way of spotting a property of topological space called topological invariant in quantum materials, that remains unchanged under continuous deformations or transformations.

Topological materials are at the forefront of next-gen technology-quantum computing, fault-tolerant electronics, and energy-efficient systems. But detecting their exotic properties has always been tricky. Topological invariance implies that if you can deform one shape into another without cutting or gluing, any topological invariant will be the same for both shapes. A popular analogy is the wada (or a donut) and a coffee cup. Since both the wada and the coffee cup have one hole, they are topologically equivalent. On the othe...