I am not expert of physics, But i think, electron and photons are different things. Speed of light is concerned/related with photons. During the process of de-exciation of electrons, photons are released.  Spin is a 4th quantum number to explain the individual behaviour of electrons inside orbital.  

I think, communication is not the right word, its called paired, if one is up other must be down.  Please correct me, if i wrote wrong.. thanks

Dear  Alamgir Khan !

In atomic scales  we do not  have things like orbits. Because you cant measure   due to the fact that heisenberg uncertainty . we just predict probability density of  electrons  around the nuclei .  Other thing   is   wave particle  duality explained both electrons  and photons  are  can be  consider as   waves or particles (please  reffer  comptone effect in X radiation )      

Dear  Mehboob Alam !

I respect your  answer  and  arguments !

Dear Manoj:

You put your hand on a deep riddle. I hope my paper on lifeboat is and RG is not too much confusing the issue: https://lifeboat.com/blog/2015/05/an-homage-to-cerns-john-bell

 Dear

There are, in fact, several ways to travel faster than light:

1. The Big Bang itself expanded much faster than the speed of light. But this only means that "nothing can go faster than light." Since nothing is just empty space or vacuum, it can expand faster than light speed since no material object is breaking the light barrier. Therefore, empty space can certainly expand faster than light.

2. If you wave a flashlight across the night sky, then, in principle, its image can travel faster than light speed (since the beam of light is going from one part of the Universe to another part on the opposite side, which is, in principle, many light years away). The problem here is that no material object is actually moving faster than light. (Imagine that you are surrounded by a giant sphere one light year across. The image from the light beam will eventually hit the sphere one year later. This image that hits the sphere then races across the entire sphere within a matter of seconds, although the sphere is one light year across.) Just the image of the beam as it races across the night sky is moving faster than light, but there is no message, no net information, no material object  that actually moves along this image.

3. Quantum entanglement moves faster than light. If I have two electrons close together, they can vibrate in unison, according to the quantum theory. If I then separate them, an invisible umbilical cord emerges which connects the two electrons, even though they may be separated by many light years. If I jiggle one electron, the other electron "senses" this vibration instantly, faster than the speed of light. Einstein thought that this therefore disproved the quantum theory, since nothing can go faster than light.

But actually this experiment (the EPR experiment) has been done many times, and each time Einstein was wrong. Information does go faster than light, but Einstein has the last laugh. This is because the information that breaks the light barrier is random, and hence useless. (For example, let's say a friend always wears one red sock and one green sock. You don't know which leg wears which sock. If you suddenly see that one foot has a red sock, then you know instantly, faster than the speed of light, that the other sock is green. But this information is useless. You cannot send Morse code or usable information via red and green socks.)

4. Negative matter. The most credible way of sending signals faster than light is via negative matter. You can do this either by:

a) compressing the space in front of your and expanding the space behind you, so that you surf on a tidal wave of warped space. You can calculate that this tidal wave travels faster than light if driven by negative matter (an exotic form of matter which has never been seen.)

b) using a wormhole, which is a portal or shortcut through space-time, like the Looking Glass of Alice.

In summary, the only viable way of breaking the light barrier may be through General Relativity and the warping of space time. However, it is not known if negative matter exists, and whether the wormhole will be stable. To solve the question of stability, you need a fully quantum theory of gravity, and the only such theory which can unite gravity with the quantum theory is string theory (which is what I do for a living). Sadly, the theory is so complex that no has been able to fully solve it and give a definitive anwer to all these questions. Maybe someone reading this blog will be inspired to sovle string theory and answer the question whether we can truly break the light barrier.

regards

I am not expert in this field but always keen to understand and the question is so interesting. 

I found an article in which they are saying speed of light was faster in early universe

http://www.dailygalaxy.com/my_weblog/2016/11/-speed-of-light-was-much-faster-in-the-early-universe-theory-soon-to-be-tested.html?utm_source=feedburner&utm_medium=feed&utm_campaign=Feed%3A+TheDailyGalaxyNewsFromPlanetEarthBeyond+%28The+Daily+Galaxy+--Great+Discoveries+Channel%3A+Sci%2C+Space%2C+Tech.%29&utm_content=FeedBurner

The Big Bang hypothesis was ruled out by the return to the original global constancy of the speed of light in the vacuum, c, discovered and adhered-to by the less than 32 years old Einstein.

I would because of the importance of this result if true be very grateful for criticism. See my paper in Progress in Physics last year, http://www.ptep-online.com/index_files/2015/PP-43-09.PDF

November 28, 2016

Dear Manoj,

Your question has two parts:

Let me answer:

1.Light is a wave called electromagnetic (EM) despite its frequency and other attributes.All kind of EM radiation can be considered as 'light', starting from 1 Hz to 300 EHz, see link.

The problem is that Maxwell's equations with dissipation (non-zero electric conductivity

of empty space = \sigma_{0} \neq 0) have been forgotten and the simplified version of \sigma_{0} =0 is presented on textbooks. See second link for a solution and estimation of \sigma_{0}  for empty space. It is found that

\sigma_{0} \approx (2.85+-0.15)x(10^(-29)) S/m

It is rather irrational to accept that light can propagate for ever without any kind of losses...

2.For this part I suggest you to read my Appendix C of publication.

Regards,

Demetris

https://en.wikipedia.org/wiki/Electromagnetic_radiation

http://www.k1man.com/Cowan130128B.pdf

Data 111 years of Magic are enough: Let us return to Science now

Dear  friends  !

The thing is more complex  , If we think that  Gravity  also  propagate  same as speed of light . In  General theory of relativity  the speed of gravitational waves  also same  as speed of  light !!

Referring to the starting question, the two electrons are parts of the same entity. This means that when we measure a measurable (e.g. spin) of one electron, we actually measure the one part of the "average" measurable and we guess about the opposite (in respect to average) part of the other electron.

The same could be extended for any entity of our Universe, as all are derived from the first singularity. But because so many entanglements have occurred since then, it is impossible to detect any relation between any two of ordinary entities.