MEGHÍVÓ
a Szilárd Leó-Kollokvium előadására:

Klaus von Klitzing (MPI FKF)
“From the Silicon Transistor to Quantum Metrology: An Unexpected Journey of Basic Research"

Kivonat: On 6 October 2026, as the physics community awaits the announcement of this year’s Nobel Prize, I will begin by recalling a very different Nobel day: the moment, more than four decades ago, when my own life was unexpectedly changed by that announcement. The story, however, began five years earlier, with a very different question. While investigating the behaviour of electrons in the silicon field-effect transistor—the key device of modern microelectronics—I observed an entirely unexpected phenomenon: the quantum Hall effect. What started as basic research motivated by the physics of a semiconductor device revealed a new and remarkably precise manifestation of quantum mechanics. 
The consequences reached far beyond condensed-matter physics. The quantized Hall resistance became a fundamental reference for electrical metrology. This ultimately contributed to a profound transformation of the International System of Units, now founded on fixed values of fundamental constants.
This journey illustrates the unpredictable and often extraordinary path by which fundamental science changes our understanding of nature and, sometimes, the way we measure it.

Helye: kivételesen a BME Q épület, Simonyi terem
Budapest, Magyar Tudósok Körútja 2.

Ideje: 2026. október 6. (kedd), 14:30. 
Regisztráció: https://regisztracio.bme.hu/a-talk-by-nobel-laureate-klaus-von-klitzing  

Minden érdeklődőt örömmel várunk!

Dóra Balázs, a BME FI képviseletében