survey of theoretical physics

How does science work? And what's all this about quantum mechanics?

Moderators: AMod, iMod

Post Reply
User avatar
Kuznetzova
Posts: 583
Joined: Sat Sep 01, 2012 12:01 pm

survey of theoretical physics

Post by Kuznetzova » Sat Jul 27, 2013 1:18 am

Below is a historical roadmap of theoretical physics from 1930 to 1997.
This particular history details how theorists tried to find a foundation for uniting gravity with quantum mechanics.

http://i.imgur.com/kfyDnCN.png

User avatar
socratus
Posts: 628
Joined: Sat Oct 24, 2009 7:00 am
Location: Israel
Contact:

Re: survey of theoretical physics

Post by socratus » Sat Jul 27, 2013 8:48 am

Kuznetzova wrote:Below is a historical roadmap of theoretical physics from 1930 to 1997.
This particular history details how theorists tried to find
a foundation for uniting gravity with quantum mechanics.

http://i.imgur.com/kfyDnCN.png
It takes two to tango.
It takes two : quantum matter / gravity ( kT ) and
quantum energy ( h*f) to create Existence.
Do these two have a common foundation ?
====…

jinx
Posts: 154
Joined: Fri May 04, 2012 10:32 am

Re: survey of theoretical physics

Post by jinx » Sat Jul 27, 2013 9:38 am

You forgot to add my contribution

2014-2018

Sam (my last name kept secret) comes up with GUT (rewrites SR in process). Keep an eye out!

User avatar
Kuznetzova
Posts: 583
Joined: Sat Sep 01, 2012 12:01 pm

Re: survey of theoretical physics

Post by Kuznetzova » Sun Jul 28, 2013 3:41 am

This diagram was provided by Carlo Rovelli in his article, " Notes for a Brief History of Quantum Gravity. "

http://www.physics.drexel.edu/~vkasli/p ... ovelli.pdf

User avatar
socratus
Posts: 628
Joined: Sat Oct 24, 2009 7:00 am
Location: Israel
Contact:

Re: survey of theoretical physics

Post by socratus » Mon Jul 29, 2013 1:18 am

Kuznetzova wrote:This diagram was provided by Carlo Rovelli in his article,
" Notes for a Brief History of Quantum Gravity. "

http://www.physics.drexel.edu/~vkasli/p ... ovelli.pdf
A historical roadmap of theoretical physics
Nowadays: 1995-2000
Spin Foams , Nonperturbative strings,
BH radiation from strings, BH radiation from loops,
Strings-noncommutative Geometry.
Eigenvalues of area and volume
Null Surface Formulation . . . . . .
And « Quantum gravity phenomenology »
=============… ====….
Concluding remarks
So, where are we, after 70 years of research?
There are well-developed tentative theories, in particular strings and loops,
and several other intriguing ideas.
There is no consensus, no established theory, and no theory
that has yet received any direct or indirect experimental support.
/ Carlo Rovelli /
====….

About “ strings theories”
There are many string theories. And the growing catalogue
of string theories evokes trouble. Because one theory is better
than the other one, but at the same time each new theory brings
new problems. Therefore Lee Smolin wrote:
‘ . . . at least one big idea is missing.
How do we find that missing idea?’
/ Book: ‘ The trouble with Physics’ Page 308. by Lee Smolin. /

My conclusion:
It is impossible to find a foundation for uniting gravity
with quantum mechanics using string theories.
=================….

Post Reply

Who is online

Users browsing this forum: No registered users and 4 guests