(As with electrons and photons, in a lot of cases their individuality isn't meaningful, so we talk of light wavefronts and bandgaps and so on)
Assuming gravitons exist, then that would mean that they are constantly being exchanged between objects of mass. This would imply that objects containing mass at a fixed distance would spontaneously become entangled due to their gravitational interaction.
A bit of googling reveals [0], which I believe describes such an experiment.
In fact, mathematically, General Relativity can be understood as the classical field theory of a massless, self-interacting, spin-2 field. In the same way that electromagnetism is the classical field theory of a massless, non-interacting, spin-1 field.
I wonder if the Higgs particle could be a candidate for the force carrier in the QM representation of GR (e.g. the resulting higgs field interacts with and causes space-time curvature instead of energy-momentum doing it directly). That is speculation on my part from a lay-person perspective, so could be completely wrong.
It couldn't. The Higgs boson is a scalar particle (spin 0), the graviton (if it exists) must have spin 2.
However, this sort of stuff i.e. the above article, makes me so curious about the universe and fills me with joy just reading about it. Would you possibly have any suggestions as to what resources one can read preferably books as it allows a journey or at the very least a concrete thing to study. ( I get distracted with wikipedia like websites becuase I jump from link to link and then get completely lost ).
I'm asking because you don't learn these things over night. Gravity & geometry in particular take quite some time to digest and then there's quantum field theory which, in my opinion, takes even more time and is even harder to digest.
Also, how mathematically inclined are you? Does it bother you when things are not clearly and precisely defined?
If you want to learn more, something to google would be quantum electrodynamics. There are some nice introductory talks about it, but be warned. In order to really understand this, you'll need to study physics, more specifically quantum field theory.
The electric field and magnetic field are tied together in the manner described by Maxwell's equations. This results in "electromagnetic waves", which are indeed carried by photons in free space.
It is often helpful to look at the fields as being the real "electricity", or at least use the lumped approximation we call "current", and this brings various charge carriers along with it. Electrons are the common charge carrier, but ions can carry charge (e.g. in batteries), and in semiconductors we use "holes", which are the absence of an electron. Not an anti-electron, just the space where it's supposed to be.
Couple of weeks ago there was post on HN about it.
What's the temperature of the cosmic neutrino background now and at decoupling?
No experimental detection and none expected any time soon.
[1] https://en.wikipedia.org/wiki/Graviton#Experimental_observat...