Docentship lecture: Interplay between light and matter – from the origins of quantum mechanics to modern applications

  • Date: –11:15
  • Location:, Passcode: 515791
  • Lecturer: Tekn dr Oscar Grånäs
  • Website
  • Organiser: Division of Materials Theory, Department of Physics and Astronomy
  • Contact person: Oscar Grånäs
  • Phone: 0736403402
  • Docentföreläsning

The Department of Physics and Astronomy hereby invite all interested to a docentship lecture in the subject of Physics.

How does a new theory describing our physical world evolve? One of the major driving forces is when established theories are unable to describe new experimental observations. In the late 19th century, the fundamentals of classical physics were well understood. However, with measurements of how heat radiates from a hot object one could show fundamental inconsistencies in the classical understanding of physics and observations, which gave new insights in the inner workings of matter and light.

During this lecture, we review the basics of the “old quantum mechanics”, that was postulated ad hoc in order to solve the apparent inconsistencies between classical physics and experimental observations. The attempts to create a consistent theory, in the transition to modern quantum mechanics, revealed several insights that forms the basis of current research. One example is stimulated emission of light. Light generated via stimulated emission enables new observation that generates a need for new theoretical understandings in the evolving interplay between theory and observations.

The lecture is an obligatory teaching test for those applying for admittance as docent and it should be possible for students and others with basic academic education in the relevant field to follow it. The lecture lasts 40-45 minutes with subsequent discussion. The lecture will be given in Swedish.