The quantum spin hall effect is a quantum phenomenon that occurs in certain materials, characterized by the existence of edge states that conduct spin-polarized currents while the bulk of the material remains insulating. This effect is closely related to topological insulators, where the topological order leads to robust surface states that are protected against impurities and disorders, allowing for potential applications in spintronics and quantum computing.
congrats on reading the definition of quantum spin hall effect. now let's actually learn it.