WORMHOLES AND WHITE HOLES : A JOURNEY TO UNPROVEN THEORIES OF RELATIVITY

Wormholes and white holes: a journey to unproven theories of relativity

It has been a wonderful journey from knowing nothing to knowing something about this universe. Never thought I would dive so deep into this subject’s ocean that it’s hard to come back to shore.

We entered this decade with lots of things which we thought were impossible to prove. We got the proof that dark matter exists from the bullet nebula, proved gravitational lensing exists predicted by Einstein’s relativity and also the most important part of relativity i.e. black holes, we were successful in capturing the image of it and proving that it existed. But, there are some theories of relativity which are yet to be proved and in this blog I’ll take you all to that part of journey with bit of my assumptions and theories on them.

Wormholes:

There are only two theories of relativity that are yet to be proved, one is wormholes and the other is white holes. Wormholes as scientists describe is a shortcut in space-time fabric which can be used to travel from one universe to the other or from one place in the universe to the other place in the same universe. But for me and all other sci-fi geeks these are objects to time travel and explore a different universe. 

To explain wormholes in a simple way I’ll take an example which was shown in the movie interstellar. Consider a sheet of paper as space-time fabric and mark two points ‘a’ and ‘b’ at the two ends of the paper. As you bend the sheet, you will see that the two points are one above the other, if you take a pencil and make hole at both sides, you will get a shortcut connecting these points.

These holes are nothing but wormholes, connecting two points in the same universe or connecting one universe to the other. These have two openings or mouths of spheroidal shape connected by throat which is usually cylindrical or it can also be winded. These are highly unstable and collapse as soon as they form, to stabilize them we need exotic matter or in other words negative energy density matter which is dead opposite to the normal matter we have. We hardly know this kind of matter exists or not and even if exists it would not be sufficient to hold these wormholes. What I think is large rotating supermassive black holes (explained about these in my blog on time travelling, check out that blog to understand what these are) can act as wormholes. Rotating supermassive black holes have less dense singularity because they lose their force due to angular momentum. 

Anyways, there are still no practical evidences for us to prove that these things exist but relativity has mathematical solution that these are present and since almost everything has been proved, it would not be a surprise if this one gets right. 

The interesting thing about wormholes is, they not only connect two points but the objects travelling through them has their speed more than the speed of light. This gives us the chance of time travelling through these but as Nobel Laureate theoretical physicist, Kip Thorne suggests it is highly complicated and it somewhat breaks the laws of physics. As a sci-fi geek I would love to see this come true.

White holes:

Everyone has heard about black holes and know how fascinating they are but the most underrated and less known are white holes. I have never seen anybody show lot of interest in them. I personally find white holes a lot more amusing then black holes, because it has complete opposite characteristics of black holes. A black hole sucks everything which is near to it whereas a white hole emits everything and takes nothing in. Many physicists say that a black hole radiates itself and forms white hole. But I completely disagree with it, I feel black hole and white hole are two faces of a same coin, they have to exist at the same time. If you look closely into the nature everything exists in pair. Positive-negative, good-bad, matter-antimatter, protons-electrons, etc. But why not this?, a very fundamental question.

 A white hole can be defined as time-reversal of black hole, if you reverse everything going on around and inside of the black hole you get wh at a white hole does. As I was reading about these I found out that white hole can be an end to black hole. Everything which gets sucked into a black hole might come out of a white hole. Which is pretty similar to wormhole i.e. two points connected by a path. But a wormhole travels through space whereas in this an object falling into a black hole and coming out of a white hole would travel through time.

It would take quadrillions of times of the age of universe to come out of a white hole. We may not be able to detect them because they maybe at the other end of the black hole, like the second face of a coin. There is lot of quantum physics and correction of relativity equations going on in the research of white holes but in the end it all comes to the fact that these are hypothetical. I don’t know whether to laugh or cry because explaining all this stuff and finally saying its hypothetical is kind of joke and disappointment at the same time. It took 40 years to prove the existence of black holes, maybe we have to wait another 40 years or so to witness this.

I remember an incident of discussing about wormholes and time travelling with my room mate, where we created our own theories and were finding flaws in them. The discussion started from black holes and I still don’t remember how it escalated to these things, it started in the afternoon and ended at night. There is no count how many nights and days I have spent discussing and arguing about these stuff. At a point I was so deeply involved in it that I started dreaming about black holes and wormholes.

I can go on and on, on these topics and write about it but that would make this blog unbearable because of its complexity. So, I will stop it here and get back to dreaming about black holes.