More Second Laws of Thermodynamics. Oscar Dahlsten is visiting the Centre for Quantum Technologies, so we’re continuing some conversations about entropy that we started last year, back when the Entropy Club was active. But now Jamie Vicary and Brendan Fong are involved in the conversations. I was surprised when Oscar told me that for a large class of random processes, the usual second law of thermodynamics is just one of infinitely many laws saying that various kinds of disorder increase. I’m annoyed that nobody ever told me about this before! It’s as if they told me about conservation of energy but not conservation of schmenergy, and phlenergy, and zenergy… So I need to tell you about this. Here’s the basic idea. . • Tim van Erven and Peter Harremoës, Rényi divergence and majorization. Let me state this fact precisely, and then say a word about how this is related to quantum theory and ‘the collapse of the wavefunction’.
How do we make precise the concept that one probability distribution is flatter than another? And majorizes. 0610027.pdf (application/pdf Object) 10-3.pdf (application/pdf Object) Fetch.php. Superoperator quantum. Sghosh2.pdf (application/pdf Object) Slides5.pdf (application/pdf Object)