What is the string theory in physics?

What is the string theory in physics?

string theory, in particle physics, a theory that attempts to merge quantum mechanics with Albert Einstein’s general theory of relativity. The theory envisions that a string undergoing a particular mode of vibration corresponds to a particle with definite properties such as mass and charge.

Is string theory mathematically rigorous?

The string models are a TREMENDOUS framework of structures connected to each other and to almost every aspect of mathematics but are not rigorous enough because even Interacting Quantum Field Theory is not rigorous mathematically.

What is string theory in physics?

String theory is one of the most famous ideas in modern physics, but it is also one of the most confusing. At its heart is the idea that the fundamental particles we observe are not point-like dots, but rather tiny strings that are so small that our best instruments cannot tell that they are not points.

Can string theory explain the expansion of the universe?

In its early days, the universe is thought to have expanded extremely rapidly through a process called “inflation”. This is well accepted in physics, but it turns out that string theory has trouble producing inflation. It could be a problem for string theory – or for inflation.

What are some of the most recent challenges to string theory?

The most recent challenges to string theory have come from the framework itself, which predicts the existence of a potentially huge number of unique universes, as many as 10^500 (that’s the number 1 followed by 500 zeroes).

How can string theorists verify their ideas?

Faced with accusations that their mathematical models cannot be tested, string theorists are retaliating with a host of thoughts on how to verify their ideas. These include looking for gravitational waves and scrutinising the results from particle accelerators. One of string theory’s most dramatic predictions is that we should find cosmic strings.