The theory of everything (ToE) is the final theory or the master
theory that can explain every interaction, every force and the origin of all
mass in the universe or simply, a theory to explain everything in the universe
as we know it. In other words,
Well, the possibility of discovery of the ToE rests on the two
fundamental pillars of modern physics- General Relativity and Quantum
Mechanics. Let’s have a brief insight about these two theories.
General Relativity-
It is a theory of gravitation given by Einstein. Modern physics formally came
into existence due to the idea of general relativity and
therefore Einstein is considered as the father of modern
physics. It was indeed a remarkable breakthrough which took physics to a
completely different and bizarre path. Well, this theory states
that two massive bodies face gravitational attraction towards each other or
gravity occurs due to distortions in spacetime caused by massive bodies.
It is the current and the most accurate description of gravity in modern
physics. General relativity generalizes special relativity and Newton's law of
universal gravitation, providing a unified description of gravity as a
geometric property of spacetime. So, general relativity explains the
nature and cause of gravity which is one of the four fundamental forces of
nature.
 |
| High-precision test of general relativity by theCassini space probe (artist's impression): radiosignals sent between the Earth and the probe (green wave) are delayed by the warping ofspacetime (blue lines) due to the Sun's mass. (Source-http://en.wikipedia.org/wiki/File:Cassini-science-br.jpg) |
Quantum Mechanics-
It is
the branch of physics which investigates what happens in the microscopic
levels, where the action is on
the order of the Planck Constant. In brief, quantum mechanics is the world of the very small. It helps
to predict the interactions elementary particles like electrons on the atomic
scale. As quantum mechanics deals with tiny particles and interactions at the
atomic scale, it explains the three other fundamental forces of nature other
than gravity- electromagnetic, weak nuclear and strong nuclear.
 |
| The Standard Model of Elementary Particles
(Source- http://en.wikipedia.org/wiki/File:Standard_Model_of_Elementary_Particles.svg)
|
The Problem-
Now, for a unified theory of all forces, the four fundamental
forces of nature have to be unified into a single force. In other words, we
have to unify quantum mechanics and general relativity in order to get a higher
theory that can explain all the forces and interactions existing in nature
which may prove as the key to the ultimate ToE. But this is where the problem
arises. The world of the tiny is not the same as the world of the large. According
to quantum mechanics The atomic world is chaotic
and nondeterministic. But the world of the large bodies where general
relativity comes into play, the situation is drastically different. It is quite
deterministic and harmonical with very definite and rigid laws governing their
motions. So, the theories of general relativity and quantum mechanics are quite different from each other. And
therefore they couldn't have been combined yet. But if there is any hope of
finding a ToE, this job has to be done first. Why the quantum world is so
different from the world governed by general relativity? Is there any way we
can combine both theories to get a satisfying higher theory that is applicable
in both scenarios? We can proceed in the hunt for ToE only if these questions
are answered. So, rigorous research is currently going on in the field of
quantum gravity. Quantum gravity is a field of theoretical physics that
seeks to describe the force of gravity according to the principles of quantum
mechanics that even gravity can be incorporated into quantum mechanics.
So, if research on quantum gravity can help overcome its limitations and make it a stronger theory, it may be possible that finally we will be able to combine quantum mechanics and general relativity which might give us the key to unlocking the mystery of the universe.
So, if research on quantum gravity can help overcome its limitations and make it a stronger theory, it may be possible that finally we will be able to combine quantum mechanics and general relativity which might give us the key to unlocking the mystery of the universe.
 |
| Albert Einstien (Father of Modern Physics) |
 |
| Max Plank (Father of Quantum Mechanics) |
This comment has been removed by the author.
ReplyDeleteNon of both theories is right, partially in local conditions they seams to be close to Reality. But they are both wrong in general. Quantum axioms made me always uncomfortable, Einsteinian relativity generated several infinities. So in short the answer is in non functional description, time slows with density. Density of what? Best is to accept back aether. More on that you can find on my gDrive account, first link is here:
ReplyDeletehttps://docs.google.com/document/d/143UU6I9c8lNyfwowMNr4IOo-OT6Hxlu-7pzcPkwSAEM/edit?usp=sharing
Strings not mentioned here Quantum Loops and E8 of G.Lisi supergroup concepts are evolutionary to quanta and relativity, so I like both but still they do not explain why we have what they depict. Still you may read all or/and ask me some more.
John.Dabro at gMail