DrChinese's latest activity

The existence of the arrow of time is a matter of statistical physics, either classical or quantum. To see how that works in QM from a...

A basic level of understanding of quantum theory is needed for any kind of advancement of the discussion. Fundamentally misunderstanding...

I guess you will get no satisfactory answer. All interpretations of quantum theory (QT), Bohmian mechanics is no exemption, use Born’s...

Or, as in GR, we can impose conditions that lead to a certain arrow of time, but in essence, the field equations are symmetric under...

Still, Maxwell's equations do not require an arrow of time

There is still an initial context and a final context. In between elements of a swap are not significant as to order. So pre- means...

Re/ Bohmian mechanics and entanglement swapping: I'm finding it conceptually straightforward but computationally fiddly. Considering...

It is absolutely essential. Without that you cannot explain the effective collapse of the wave function, and even more importantly, you...

Almost correct, my only correction is that you also have to change the labels 2 and 3 in that case, namely ## (M_A,A)_3 \leftarrow...

Yes, the swap changes the state. By way of ongoing analogy: If I have a single |V> 401 nm photon headed into a suitable PDC crystal...

I agree that as a mathematical exercise, you can go from (1) to (2). There is no physical meaning to it until the swap is executed...

1. You have no idea how funny that sounds - can't use full quote. I'll have to try using partial quotes in the future. :smile: 2...

If you want to say that (2) is pre-swap algebra, and "photons 2 and 3 are actually not entangled in that state": that's what I have been...

Why won't you give the full quote? Now you are doing the cherry-picking thing too. Ma: "...As schematically shown in Fig. 1, if [and...

The 2 and 3 photons emerge from the Bell-state measurement entangled in one of 4 Bell states. Oh, am I making unsubstantiated claims...