The more we learn about QM the more time seems to be Obsolete. I was wondering though, we have this problem of entropy. Is there, an explanation of entropy that does not involve time? Any ideas?

The more we learn about QM the more time seems to be Obsolete.

 

Oh, really? Yeah, I guess you're right, after all Hamiltonians and time evolutions opreators play a minor, insignificant role.

Well im not a university grad, and hence my knowlege of the subject is far far below yours. However I have read (from more than one reliable source) that entropy is the only time required concept in the universe.

 

Howevre would you like to expand on what you mentioned; in laymans terms of course

The Hamiltonian is one of the most important elementary quantities in quantum mechanics. It arises because of time, and gives the energy of the system, in a round about way.

and the time evolutions opreators?

Time Dependent Schrodinger Equation....

and the time evolutions opreators?

 

It allows one to take some state defined at some particular time and find the state at a further point in time. So one can remove time dependance, which can then be replaced by evolution operators, and makes things a bit easier in places.

You trying to put me out of a job?

You trying to put me out of a job?

 

Officially, no. Off the recod, yes.

"Looks at hands on a clock move"

 

I think the concept of time is far from obsolete, in any field, especially physics.

At the moment of the big Bang, entropy was negative.

 

If most of the material that falls into a septillion-year old black hole is very weak radio wave background radiation, and it explodes into say gamma rays, that would be a reversal of entropy, too.

 

If I'm wrong about this, please tell me how. It seems to me that very intellegent people hold onto the idea of Entropy Uber Alles so strongly that they contort physics beyond all common sence to conform.

At the moment of the big Bang' date=' entropy was negative.

 

If most of the material that falls into a septillion-year old black hole is very weak radio wave background radiation, and it explodes into say gamma rays, that would be a reversal of entropy, too.

 

If I'm wrong about this, please tell me how. It seems to me that very intellegent people hold onto the idea of Entropy Uber Alles so strongly that they contort physics beyond all common sence to conform.[/quote']

 

Why would entropy be negative at the big bang? What does negative entropy even mean, and what evidence for this claim is there?

 

I dont know what the rest of your post is talking about.

If most of the material that falls into a septillion-year old black hole is very weak radio wave background radiation, and it explodes into say gamma rays, that would be a reversal of entropy, too.

That would never happen, because background radiation is dispersed, by definition, so would never just "fall" into a black hole.

Although time does not exist as an entity, the use of time in equations and calculations is still very valuable. The idea of removing time from physics just won't work.