Gravity Waves & Gravitons: Exploring the Distortion of Space-Time

In summary, the conversation discusses the relationship between gravity waves and gravitons. It is suggested that the distortion of space-time caused by a mass can be described as a gravity wave, which carries energy. However, the question arises as to why this wave does not create a "graviton" like electromagnetic waves create photons. The conversation also touches upon the concept of quantum gravity and the possibility of space-time being a quantum field, with gravitons being excitations of this field.
  • #1
Gal
5
0
If a mass bends space-time somehow and then I nudge it, the bend changes. This distortion of space-time bend is supposedly expanding at the speed of light and could be called a "gravity wave" that carries energy. Why is this wave not the distortion that creates a "graviton" like EM and photons?
 
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  • #2
Gal said:
Why is this wave not the distortion that creates a "graviton" like EM and photons?

Why do you phrase this in the negative?

We presume that gravity is quantized, although we currently don't have a working theory of quantum gravity. "Graviton" is our name for the quantum of the gravitational field.
 
  • #3
Gal said:
If a mass bends space-time somehow and then I nudge it, the bend changes. This distortion of space-time bend is supposedly expanding at the speed of light and could be called a "gravity wave" that carries energy. Why is this wave not the distortion that creates a "graviton" like EM and photons?
Actually it is. Roughly speaking, a quantum description of gravity wave is called graviton.
 
  • #4
Demystifier said:
Actually it is. Roughly speaking, a quantum description of gravity wave is called graviton.
But is space-time a quantum field? Do gravitons theoretically excite this "field"?
 
  • #5
Gal said:
But is space-time a quantum field? Do gravitons theoretically excite this "field"?
The metric of space-time can be treated as a quantum field, in which case gravitons are excitations of this field.
 

1. What are gravity waves?

Gravity waves are ripples in the fabric of space-time, caused by the acceleration of massive objects. These waves propagate outward at the speed of light, carrying energy and information about the source of the disturbance.

2. How are gravity waves different from electromagnetic waves?

Gravity waves are fundamentally different from electromagnetic waves in that they are a result of the warping of space-time, while electromagnetic waves are disturbances in the electromagnetic field. Additionally, gravity waves are much harder to detect and have a much larger wavelength compared to electromagnetic waves.

3. What are gravitons?

Gravitons are hypothetical particles that are thought to be the carriers of the force of gravity. They are predicted by certain theories, such as string theory, but have not yet been observed or proven to exist.

4. How do scientists detect gravity waves?

Scientists use extremely sensitive instruments, such as interferometers, to detect the extremely tiny distortions in space-time caused by gravity waves. These instruments measure changes in the distance between two points as the waves pass through.

5. What are the potential applications of studying gravity waves?

Studying gravity waves can provide a better understanding of the behavior of massive objects in space, such as black holes and neutron stars. It can also help us to develop new technologies, such as more precise and sensitive instruments, and potentially lead to advancements in our understanding of the universe and its origins.

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