The World of Quantum Materials
In the past four decades, with the rapid development of experimental technology, a large number of so-called correlated quantum phenomena, such as quantum Hall effect, high-temperature superconductivity, and Kondo effect, have been discovered. These discoveries have revealed the diversity and complexity of the quantum world. A thorough understanding of the microscopic mechanisms of these phenomena, in particular, the mechanism of high temperature superconductivity, has a potential to change the face of fundamental physics.
The correlated quantum phenomena result from the interplay of microscopic particles. Due to the correlation, the world of macroscopically many particles is more than the sum of each individual particle. The complexity of the many-body world adds value in hard to define our current universe. In other words, complexity has unpredictable value, which was termed as “More Is Different” by the Nobel laureate, P.W. Anderson.
