RE: Possible Big Breakthrough In The Discovery Of Dark Matter

[lemouth]

Points well taken. Perhaps it would have served a better purpose to have better clarified the the constituants of the universe, namely approximately 68% dark energy, 28% dark matter and about 5% normal matter, according to NASA.

In fact, this does not come from NASA but from the results of the Planck mission (see here), that has been managed by the ESA. and not the NASA.

By the way, I came accross an interesting publication by the International Journal of Cosmology, Astronomy and Astrophysics where there's a detailed discussion of dark matter and dark energy. You may find it worth a read.

This does not look a very correct article at all. Mass as a fifth dimension? Really? Just to mention the thing that shocked me the most with this article (that has not been published in a well recognised journal by the way). You can get much better information on CERN, NASA or ESA websites, to be honest.

PS: I may write about this news at some point next week... Just to clarify things deeper.

Comments

[jaalig]

Thanks again for your response and the refence to the Plank mission. I found your post on "Cats and quantum computers" particularly interesting. As a result couple of questions came to mind.

The first question has to do with:

This is where nuclear physics enters into the game. It tells us that our nucleus has a given probability to decay which increases with time.

Therefore, the nucleus can decay at any time, but the decay will always happen after a sufficiently long time.

Could this also be related to entrophy?

My second question envolves:

This means that in no time, its description through a quantum state is not valid anymore. This is what is called quantum decoherence. Decoherence appears at a pace proportional to the number of involved particles, and it has been observed and studied for instance in experiments with simplified pseudo-Schrödinger’s cats made of light.

Does the act of taking a measurment disturb the quantum field surrounding the object and does this possibly have anything to do with quantum electro dynamics?

Hopefully you can to clarify and get me pointed in the right direction. I don't pretend to understand all of the science involved but nevertheless, I find the subject matter extremely facinating.

[lemouth]

Apologies for the delay in my answer.

Could this also be related to entrophy?

The quantum origin of thermodynamics is addressed by a while field called quantum thermodynamics. In this context, thermodynamics quantities like entropy are connected to quantum observables. I am not too sure this is where you want to go. Please provide me more details to see whether I can answer shortly.

Does the act of taking a measurment disturb the quantum field surrounding the object and does this possibly have anything to do with quantum electro dynamics?

Taking a measurement changes the situation and affect the wave function. Quantum electrodynamics is on the other hand a quantum field theory describing electromagnetism.

PS: note that I finally wrote on the topic of your post in greater details. Feel free to have a look ^^