Quantum Gravity and Special Relativity

In summary, special relativity and general relativity handle different cases of gravitational effects, with special relativity being limited to no significant gravitational effects. Therefore, there is no equation that links quantum gravity and special relativity as special relativity is not valid when gravity is involved. However, it is expected that a similar relation may exist in quantum gravity, but it is not certain.
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Meruem
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TL;DR Summary
How do quantum gravity and special relativity are linked?
is there a equation that links quantum gravity and special relativity?
 
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Special relativity applies the special case in which there are no significant gravitational effects (that's why it's called "special") while general relativity handles the more general case in which gravitational effects may be present (that's why it's called "general").

So no, there is no equation that links quantum gravity and special relativity because if gravity is involved special relativity is not.
 
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In the presence of classical gravity, special relativity is valid locally, for any local inertial observer. One expects that a similar relation should also be valid in quantum gravity, but no one knows for certain.
 

1. What is the difference between Quantum Gravity and Special Relativity?

Quantum Gravity and Special Relativity are both theories that attempt to explain the behavior of the universe on a fundamental level. However, Quantum Gravity focuses on the behavior of gravity at a very small scale, such as at the level of subatomic particles, while Special Relativity deals with the behavior of matter and energy at high speeds.

2. Can Quantum Gravity and Special Relativity be unified?

Currently, there is no unified theory that combines Quantum Gravity and Special Relativity. Many scientists are working on developing a theory of quantum gravity that can reconcile the two theories, but it remains a major challenge in the field of physics.

3. How does Quantum Gravity affect our understanding of the universe?

Quantum Gravity plays a crucial role in our understanding of the universe, as it helps explain the behavior of gravity at a very small scale, where classical theories of gravity break down. It also helps us understand the behavior of black holes and the early stages of the universe.

4. What are some current theories of Quantum Gravity?

Some current theories of Quantum Gravity include String Theory, Loop Quantum Gravity, and Causal Dynamical Triangulations. These theories attempt to reconcile the principles of quantum mechanics and general relativity to provide a unified understanding of the universe.

5. How can Quantum Gravity and Special Relativity be tested?

Due to the complex and abstract nature of these theories, it is difficult to directly test Quantum Gravity and Special Relativity. However, scientists can indirectly test these theories through experiments that examine the behavior of matter and energy at high speeds or in extreme conditions, such as near black holes.

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