Photons are made from gravitons

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Discussion Overview

The discussion revolves around the theoretical relationship between photons and gravitons, exploring concepts of spin, mass, and energy in the context of quantum field theory and relativity. Participants propose various models and hypotheses regarding the nature of these particles and their interactions, as well as the implications for understanding mass and energy conservation.

Discussion Character

  • Exploratory
  • Debate/contested
  • Technical explanation
  • Conceptual clarification

Main Points Raised

  • Some participants suggest that photons are formed from gravitons, proposing mechanisms involving angular momentum conservation and particle interactions.
  • Others argue that the concept of spin in quantum physics differs from classical angular momentum, indicating a need for a deeper understanding of quantum field theory.
  • One participant postulates that photons redshift by emitting gravitons, questioning the fate of energy during this process.
  • There are claims regarding the rest mass of photons and gravitons, with some asserting they are zero, while others challenge this by discussing gravitational effects on photons.
  • Participants discuss the implications of mass in the context of special relativity, questioning whether photons can possess inertial mass despite being massless.
  • Some propose that the limiting speed of particles may be influenced by their spin rather than rest mass, suggesting a new kind of mass termed "kinetic mass."
  • There are conflicting views on the nature of energy and mass conversion, particularly in the context of particle-antiparticle interactions.
  • One participant introduces the idea that all masses radiate energy, leading to further speculation about the relationship between photons and gravitons.

Areas of Agreement / Disagreement

Participants express multiple competing views on the relationship between photons and gravitons, the nature of mass, and the implications of quantum mechanics and relativity. The discussion remains unresolved with no consensus on the various hypotheses presented.

Contextual Notes

Participants reference concepts from quantum field theory and special relativity, indicating that a complete understanding may depend on further exploration of these theories. There are unresolved questions regarding the definitions of mass and energy in the context of particle interactions.

kurious
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If a spin 1 photon is made from spin 2 gravitons then when the
gravitons initially formed the photon, they must have reduced their
angular momentum.
They could do this by splitting into two spin 1 particles, one of
which helps form a photon, while the other moves off into space as a
free photon.When a photon is struck at some time by a free graviton in
space,part of the energy in the photon can have its angular momentum
increased and can leave the photon as a spin 2 particle.The free
graviton that caused the increase in the angular momentum of part of
the energy of the photon would have its own angular momentum
decreased.Angular momentum would be conserved.
 
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kurious,

You might have the right idea about underlying structural similarity between photon and graviton but the fact is that spin concept in quantum physics is not the same as angular momentum in classical physics. To know the subtle difference requires a complete understanding of quantum field theory. For your information, this is what my research in progress is all about. Currently, I am studying QFT by reading Steven Weinberg's book: The Quantum Theory of Fields, volume I, Foundation.
 
kurious

You might have the right idea about underlying structural similarity between photon and graviton...

I think that photons redshift by emitting gravitons and this explains what general relativity cannot - where redshifted energy goes.Spin comes from the application of special relativity to quantum mechanics and is a unitless quantity and classical angular momentum has units.But I postulate that every photon and graviton are electromagnetic waves that can be formed from particle-antiparticle pairs which orbit around a common centre of mass (for some reason rest mass is present in the photon and graviton!) and have classical angular momenta.In the photon there is mass associated with the magnetic field and an equal amount of mass associated with the electric field, and the ratio of the angular momenta for the two fields will be unitless and equal to 1.In the graviton, the ratio will be equal to 2.
 
kurious said:
Spin comes from the application of special relativity to quantum mechanics and is a unitless quantity...

The unit of spin is accepted by all quantum field theorists as [itex]\frac{\hbar}{2}[/itex].

kurious said:
for some reason rest mass is present in the photon and graviton

Both rest masses of photon and graviton are zeros. Again, accepted by all quantum field theorists.
 
Antonio Lao

Both rest masses of photon and graviton are zeros. Again, accepted by all quantum field theorists.

Kurious:
Those theorists haven't quantized gravity yet despite all their theories!

It is assumed that a photon is massless but what do we mean by mass.
Inertial mass or gravitational mass?
A photon has gravitational mass because it is deflected by the Sun.
Inertial mass is supposed to be the same as gravitational mass.
So why can't a photon have inertial mass too?
Because special relativity says that it has zero rest mass?
It seems more likely to me that special relativity has got something missing from it.
If positrons and electrons which have rest mass can become photons, why should the rest mass disappear?
When an electron is accelerated it gains relativistic mass and it should take an infinite force to get it to move at the speed of light.But what if the limiting speed of a particle can be determined by its spin.What if an electron has a permanent short-range magnetic field (that exists at constant velocityand has so far eluded experimental detection) and I changed the spin of an electron from 1/2 to 1 by changing the ratio of the electric to magnetic fields so E / Bfor an electron = 10^8 m/s.
 
kurious said:
Those theorists haven't quantized gravity yet despite all their theories!

The name graviton means it is quantized otherwise it is called a gravity wave (a field concept).

kurious said:
A photon has gravitational mass because it is deflected by the Sun.
A massless photon travels along a curved spacetime path caused by the presence of gravitational mass. The path is geodesic, a path of minimum expenditure of energy. So it is the curved path that deflect the photon and not its zero mass.

The mystery of the massless photon and graviton and gluon do beg the question for a new kind of mass. At the moment, i am calling it the kinetic mass.
 
Antonio Lao:

The mystery of the massless photon and graviton and gluon do beg the question for a new kind of mass. At the moment, i am calling it the kinetic mass.

Kurious:

I think the your kinetic mass has kinetic energy because it is moving rest mass!
As I said: why should a positron and electron that have rest mass combine and lose their rest mass in a photon.I don't believe it happens.I think that the limiting speed of all masses is caused not by rest mass but by the ratio of electric field/magnetic field.But the magnetic field of a fermion must be very short range or else it would have been detected by now.
 
kurious said:
But the magnetic field of a fermion must be very short range or else it would have been detected by now.

The magnetic field of fermions are all been detected and all data tabulated. These are the magnetic dipole moments of each particle.
 
kurious said:
why should a positron and electron that have rest mass combine and lose their rest mass in a photon

[tex]E = m c^2[/tex]

This equation is the reason why.
 
  • #10
kurious said:
If a spin 1 photon is made from spin 2 gravitons then when the
gravitons initially formed the photon, they must have reduced their
angular momentum.
They could do this by splitting into two spin 1 particles, one of
which helps form a photon, while the other moves off into space as a
free photon.When a photon is struck at some time by a free graviton in
space,part of the energy in the photon can have its angular momentum
increased and can leave the photon as a spin 2 particle.The free
graviton that caused the increase in the angular momentum of part of
the energy of the photon would have its own angular momentum
decreased.Angular momentum would be conserved.

I don't want to interrupt your conversation, but I just wanted to say that I see the reverse happening. I think of photon1 + photon2 = graviton.

Just my thoughts...stay involved.
 
  • #11
Originally Posted by kurious
why should a positron and electron that have rest mass combine and lose their rest mass in a photon

Antonio Lao:

This equation is the reason why.
E = mc^2

Kurious:

The equation above is only a quantitative relationship that says that a photon of a certain energy can be associated with a certain amount of mass.It does not say what the nature of the energy is.

Force5:

photon1 + photon 2 = graviton

If this is true then why isn't the Sun sending some spin 2 light to us?
 
  • #12
Hi Kurious,

I was thinking of it a little different.

All masses radiate energy(photons). Photon1(earth) + Photon2(sun) = Graviton.

Just my thoughts.
 
  • #13
As a charge is accelerated by a force and increases its speed, it
increases its mass relativistically.Since the ratio of E / B determines
its speed, B could decrease as the mass increases.This B must be a very short range magnetic field which in a photon is equal in magnitude to the
usual magnetic field strength of the photon at a particular point.
To be short range the magnetic field must have very high energy and therefore it must be associated with a lot of mass.When a charge increases its mass relativistically, perhaps it gets the relativistic mass from the
short range magnetic field which gets weaker in strength with increasing speed.
 
Last edited:
  • #14
kurious said:
As a charge is accelerated by a force and increases its speed,

Using the Lorentz force equation, charge can only be accelerated by the electric component of the force. But this electric force depends on the existence of other collective structure of many charged particles, so many in fact that all combined force from each charge merge into a continuous electric field. But if the electric field is constant, still there will be no acceleration (constant electric field is the working principle behind the production of electricity for our industrial consumption). There can be acceleration only if the time rate of change of the field is not zero. But nonzero time derivative creates an induced magnetic field. and the magnetic component of the Lorentz force comes into effect. So that the charges will now be forced to rotates around the magnetic field lines, the stronger the field, the tighter the rotation but then again a changing magnetic field produces an electric field and this will affect the original electric field. So, you see, actions and interactions is continuously going on between the E-field and M-field. The result is electromagnetic radiation such as light or radio waves or other form of waves.
 

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