Topic: quantum theory

Mathematicians and physicists will investigate how topological structures constrain quantum fields and quantum gravity. Properties unchanged by local deformation can impose strong restrictions on microscopic physical theories. The programme brings together expertise in topology and quantum theory to study broader classes of these structures and their implications for physics at very short distance scales.

Sean Carroll examines quantum mechanics on its own terms and asks how the familiar everyday world emerges from its formalism. The episode explores the tension between quantum theory and classical intuition, including how competing interpretations approach measurement and physical reality.

Daniel Harlow discusses what attempts to reconcile gravity and quantum mechanics reveal about quantum theory itself. The conversation follows black-hole radiation, information loss, the wave function of the universe, the AdS/CFT correspondence and quantum information. It then connects these developments to quantum cosmology and questions about the structure of quantum mechanics.

Anders Kvellestad discusses the success of quantum theory and the unresolved questions surrounding its interpretation. Conversation in Norwegian.

Sean Carroll discusses interpretations of quantum theory and what physical explanations imply for consciousness and free will. Conversation in English.