TY - JOUR AU - Klaus von Klitzing AU - Tapash Chakraborty AU - Philip Kim AU - Vidya Madhavan AU - Xi Dai AU - James McIver AU - Yoshinori Tokura AU - Lucile Savary AU - Daria Smirnova AU - Ana Maria Rey AU - Claudia Felser AU - Johannes Gooth AU - Xiaoliang Qi AB - The discovery of the quantum Hall effect (QHE) marked a turning point in condensed-matter physics. The measurement of the Hall resistance showed that electronic resistance could be defined precisely in terms of fundamental constants, even in a disordered and irregular sample. Over the past 40 years, the QHE has inspired new theories and led to experimental discoveries in a range of fields going beyond solid-state electronics to photonics and quantum entanglement. In this Viewpoint, physicists reflect on how the QHE has influenced their research. BT - Nature Reviews Physics DA - 2020-07 DO - 10.1038/s42254-020-0209-1 N2 - The discovery of the quantum Hall effect (QHE) marked a turning point in condensed-matter physics. The measurement of the Hall resistance showed that electronic resistance could be defined precisely in terms of fundamental constants, even in a disordered and irregular sample. Over the past 40 years, the QHE has inspired new theories and led to experimental discoveries in a range of fields going beyond solid-state electronics to photonics and quantum entanglement. In this Viewpoint, physicists reflect on how the QHE has influenced their research. PY - 2020 SE - 397–401 EP - 397–401 T2 - Nature Reviews Physics TI - 40 years of the quantum Hall effect UR - https://www.nature.com/articles/s42254-020-0209-1 VL - 2 ER -