Theoretical_Physics

How should we interpret physical theories, and especially quantum theory, if we drop the assumption that we should treat it as an exact description of the whole Universe? I expound and develop the...

Useful mathematical concepts, like the number line, can linger for millennia before they are rigorously defined.

How are scientists able to crack fundamental questions about nature and life? How does math make the complex cosmos understandable? In this episode, the physicist Nigel Goldenfeld and co-host Steven Strogatz explore the deep foundations of the scientific process.

We show that quantum circuit complexity for the unitary time evolution operator of any time-independent Hamiltonian is linear in time at early times, independent of any choices of the fundamental...

Observing gravitational-wave memory may help physicists test general relativity predictions about large-scale symmetries in the fabric of spacetime.

We review observational, experimental and theoretical results related to Dark Matter.

We describe a summer outreach program developed to cultivate interest in physics in particular and physical sciences more broadly among high school and early college students using small projects...

Spacetime wormholes are evidently an essential component of the construction of a time machine. Within the context of general relativity, such objects require, for their formation, exotic matter...