[Physics Class Notes] on Multiverse Pdf for Exam

Multiverse is a term coined on the pillar of multiple hypotheses. It falls under the broader subject known as cosmology and stands upon some theories. As per the historical aspects, the concept of the multiverse was mentioned in Greek Atomism. There it is termed as infinite worlds and universe. By middle age, it became more and more prominent. Apart from cosmology, multiverse universe concepts have been discussed in physics, astronomy, religious texts, and all types of literature. The scientific approach of the multiverse is discussed here in detail. Generally, the students of astrophysics have to study these concepts and the arguments.

Multiple Universes: A Broader Aspect

In a broader aspect, you can term a multiverse as an infinite multiverse too. As per literature, these can be called parallel universes. These consist of all the abstract terms that define existence like time, space, energy, matter, and information. Each parallel universe also has constants and physical laws by which they can be defined mathematically. 

Many scientists have so far worked on the quantum multiverse and searched for clear evidence of its presence. The most recent example can be of 2010 when Stephen N Feeny analyzed the data of the WMAP (Wilkinson Microwave Anisotropy Probe) and claimed that in the distant past, our universe might have collided with another universe. 

However, the theory of the bubble universe collision was turned down by the findings of the Planck Satellite. Most scientists believed in that because the clarity of the satellite was three times better than the WMAP. The NASA multiverse research, however, is still on where the ANITA setup had come up with the claim in 2016, to have found a parallel universe where the time runs in a reverse direction. 

Before 2016, most scientists did not believe in the multiverse theory as they could not detect any gravitational pull from other universes. 

Types of Multiverses

As many scientists have been working on the concept of the multiverse, they have come up with a few types. Here are some details related to it. Generally, it depends on the degree to which the coexistence of a specific universe concerning one can be framed scientifically. 

• The Common Origin Model: In the case of the common origin model, multiple universes have a single origin. Moreover, they are considered to be interacting with each other.

While giving a base to the multiverse concept, this approach shows that a big bang that leads to the creation of the universe can be the reason for its expansion too. These expansions can lead a baby universe to take the shape of a tree where one universe might not be able to interact with the other. 

As per almost all scientists, the big bang occurs mostly in the interiors of the black holes and that is where a new universe can form (literally from the ashes of a pre-existing universe). 

Arguments Against the Multiverse Theory

There are a lot of arguments against the multiverse theories from experts belonging to different fields like physics and philosophy. In most cases, philosophists do not count the multiverses that are of the disconnected type, and given the subject, it is legitimate. 

In the case of science, most scientists fail to frame the real multiverse meaning as they are still unaware of the reality of life and how it can be framed under the context of the multiverse. Moreover, the basic theory of the cosmological constant falls short when it comes to proving the presence of multiverses. 

The outcomes of the Planck Satellite also show that there are no attractions from other bubble universes. The scientists believe that it should have occurred in case of the presence of a multiverse near our solar system. 

Fun Facts About Multiverse

As per quantum mechanics, there is a multiple-world interpretation where our world can split according to every minute quantum event occurring in every second. So, even our world can be changed into a multiverse.