String and pair creation/annihilation

In summary, string theory explains pair creation and annihilation through string splitting. In a true vacuum, there is no pair creation, but if there are fields present, then it is not a true vacuum. Fields have a source, such as a charged particle, and in string theory, a pair of strings is created from a charged source string. Some argue that there is no true stationary vacuum, as even in a seemingly still state, there are fluctuations that can create energy, leading to the creation of particle pairs or strings according to string theory.
  • #1
touqra
287
0
How does string explains pair creation and annihilation ?
 
Physics news on Phys.org
  • #3
Demystifier said:
By string splitting.

In the first place, vacuum has nothing, only fields. I don't see how strings could suddenly pop out of nowhere? Sorry, just new in these things.
 
  • #4
In the true vacuum, there is no pair creation. If there are fields, then it is NOT nothing, not a true vacuum. Furthermore, a field has its source. For example, a source of a static electric field is a charged particle. Now, in string theory, the pair of strings is created from the charged source string.
 
  • #5
Demystifier said:
In the true vacuum, there is no pair creation. If there are fields, then it is NOT nothing, not a true vacuum. Furthermore, a field has its source. For example, a source of a static electric field is a charged particle. Now, in string theory, the pair of strings is created from the charged source string.
I wouldn't disagree more. It's better we say there is no true stationary vacuum. From what we know of fluctuations even when we consider a space or point mass momentarily at rest, we can say argue that the vacuum itself is fluctuating. The fluctuation creates energy and we all know particle pairs or "string" as in the stirng theory could be created out of energy brought on by this fluctuation.
 

1. What is string creation/annihilation?

String creation/annihilation is a concept in theoretical physics that describes the process by which a string of energy particles, known as a "string", is formed or destroyed. This process is believed to occur in the early universe and is responsible for the creation and destruction of matter and antimatter particles.

2. What is pair creation/annihilation?

Pair creation/annihilation is a fundamental process in quantum mechanics where a particle and its corresponding antiparticle are created or destroyed. This process is governed by the laws of conservation of energy and momentum and is important in understanding the behavior of particles in the microscopic world.

3. How are string creation/annihilation and pair creation/annihilation related?

String creation/annihilation and pair creation/annihilation are both processes that involve the creation and destruction of energy particles. However, string creation/annihilation occurs on a larger scale and is believed to be responsible for the creation of all particles, while pair creation/annihilation occurs on a smaller scale and is responsible for the behavior of particles within the string.

4. What is the significance of string and pair creation/annihilation in the universe?

String and pair creation/annihilation are fundamental processes that play a crucial role in the evolution of the universe. They are responsible for the creation and destruction of matter and antimatter particles, which ultimately determine the composition of the universe. These processes also help scientists understand the behavior of particles and the fundamental laws of physics.

5. Can string and pair creation/annihilation be observed in experiments?

Currently, there is no experimental evidence for string and pair creation/annihilation. These processes occur on a microscopic level and are difficult to observe directly. However, scientists are constantly conducting experiments and using mathematical models to understand these processes and their implications for the universe.

Similar threads

  • Beyond the Standard Models
Replies
11
Views
981
  • Beyond the Standard Models
Replies
26
Views
494
  • Beyond the Standard Models
Replies
1
Views
302
  • Beyond the Standard Models
Replies
31
Views
2K
  • Quantum Physics
Replies
3
Views
780
  • Atomic and Condensed Matter
Replies
8
Views
1K
Replies
10
Views
2K
  • Beyond the Standard Models
Replies
10
Views
1K
  • Classical Physics
Replies
2
Views
707
  • Beyond the Standard Models
Replies
4
Views
1K
Back
Top