Recent content by ffia

I also have a difficult time believing that this should always be the case. But perhaps this should be viewed as just a "trick"/approximation to "at least be able to calculate something". [For example, I'm pretty sure my lecturer thinks that this is an "ok approach", and I just feel cognitive...

Chestermiller: So, do you know whether the statement holds? And moreover, why does/doesn't it? ["He is saying that, even if a (closed) system experiences an irreversible process, it is possible to identify one or more reversible paths for the surroundings that imposes the exact same...

Yes! Or, rather (the bolded part) irreversible change (I think). Actually quite like you suggested earlier, I think Reiss says that between any two points on the state space one can find the reversible path between them. The most counterintuitive part is that we would be able to always "find"...

Thanks for the fast reply! I'm actually looking at your blog right now. And sorry. But I feel like I can't be more specific with the question before I understand the answer. But I'll try, this is something I read from a book by Reiss. Reiss uses the wording "the environment (surroundings...

Hi! I've read part of the discussion, and I'd have a related question. I believe you can always (?) choose the environment so that its changes occur reversibly. Why is this i.e. why can you choose it that way?

Hi guys! There is something I fail to understand in normalising wave functions to dirac's delta. Let's take the free particle solution as an example. Please note that my question is not about using the solution as much as about undestanding the concept. ----- The situation The general...