Well I mostly work with superconductivity, so I’m going with that. Its when some materials have zero resistance when they are cooled to really low temperatures.
Actually – superfluids are also pretty cool. Same concept but zero thermal resistance. So if you had a swimming pool full of water and you put a heater in at one end, the whole pool would instantly heat up by the same amount, you wouldn’t have to wait for the temperature to be transferred by conduction or convection like with normal liquids. Also, I’m not actually sure why – but if you filled a bowl then the fluid would just flow up the side and out the bowl – making them pretty hard to contain.
Quantum information 😀 I did my master’s dissertation in that area, and still regard myself as being from a QI background. It’s a very abstract way of looking at the world, but I really like it, and quantum computing is *awesomeMATOMO_URL
These days I’m technically working in many-body quantum theory but I still call everything a ‘qubit’ (short for ‘quantum bit’ — a term from QI). This annoys some of my condensed matter physicist colleagues quite a lot 😛
I really like astrophysics, which is closely related to particle physics 🙂 I have never studied it in depth before but I love watching programs about the universe, planet and star formations, cosmic rays and black hole physics. It’s really fascinating! Plus I love that everyone can look up in the night sky and do a bit of astronomy themselves 🙂 It’s such a beautiful subject which everyone can enjoy
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