Energy conservation in String Theory

In summary, the conversation discusses the conservation of energy in relation to string theory and the Noether theorem. It is noted that energy conservation holds in all experiments and there is no experimental evidence of time-dependence.
  • #1
Silviu
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Hello! I read some stuff about "attempts" to test some aspects of string theory at LHC and I was wondering if there is any deep reason behind the conservation of energy in general or it is just based on the fact that it holds in all the experiments (excluding uncertainty principle arguments). Like is there any theoretical reason why energy conservation should hold in multiple dimensions (and eventually at very high energies where stuff that we might not be able to predict can happen)?
 
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  • #2
The Noether theorem guarantees energy conservation in every system where the laws of the universe do not depend on the time.

While we cannot rule out (experimentally) that the fundamental constants of nature could show slight changes over time, no time-dependence has ever been measured.
 
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Related to Energy conservation in String Theory

1. What is energy conservation in String Theory?

Energy conservation in String Theory refers to the principle that energy cannot be created or destroyed, but can only be transformed from one form to another. In String Theory, this principle is applied to the behavior of fundamental particles and their interactions.

2. How does String Theory explain energy conservation?

String Theory proposes that all particles and forces in the universe are made up of tiny, vibrating strings. These strings have a certain amount of energy, and the vibrations of the strings determine the properties and behavior of the particles. Energy is conserved in String Theory through the conservation of string length and the transfer of energy between string vibrations.

3. What is the role of gravity in energy conservation in String Theory?

In String Theory, gravity is not a separate force, but rather an emergent phenomenon caused by the bending and twisting of space-time by the vibrations of strings. As such, energy conservation in String Theory also applies to gravity, as the total energy of the system must remain constant.

4. Can energy be created or destroyed in String Theory?

No, energy cannot be created or destroyed in String Theory. The theory adheres to the principle of energy conservation, which states that the total energy of a system remains constant over time. This means that energy can only be transformed from one form to another, but it cannot be created or destroyed.

5. How does energy conservation in String Theory relate to the concept of "extra dimensions"?

String Theory proposes that there are more than four dimensions in the universe, with some versions of the theory suggesting up to 11 dimensions. Energy conservation in String Theory is not affected by the existence of these extra dimensions, as the total energy of the system must still remain constant, regardless of the number of dimensions.

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