Author Topic: Quantum Field Theory Made Easy  (Read 2468 times)

Quantum Field Theory Made Easy
« on: April 29, 2014, 07:47:51 AM »
Just posted another blog, The Essential Quantum Field Theory. Needless to say, QFT is perhaps the greatest accomplishment of the human mind. Just about everything that smells electronics owes its existence to this theory.

Any comment would be greatly appreciated.

Enjoy.

Re: Quantum Field Theory Made Easy
« Reply #1 on: April 29, 2014, 08:01:59 AM »
I think we have different definitions of "easy".
Winner of WitchSabrinas Best Advice Award 2012


We can easily forgive a child who is afraid of the dark; the real
tragedy of life is when men are afraid of the light. -Plato

Offline PopeyesPappy

Re: Quantum Field Theory Made Easy
« Reply #2 on: April 29, 2014, 08:06:33 AM »
I think we have different definitions of "easy".
I'm know I do. There are characters in some of those formulas I don't even know how to type.
Save a life. Adopt a Greyhound.


Re: Quantum Field Theory Made Easy
« Reply #3 on: April 29, 2014, 08:43:14 AM »
I think we have different definitions of "easy".

I'll admit the word "easy" is relative. But if you would buy your standard QFT textbook - examples: Peskin & Schroeder(842 pages), Srednicki(641 pages), Weinberg 2 volumes (1098 pages), Zee(518 pages), while my blog is about 20 pages when printed out, and you'll get the necessary topics to go on to the next step, it's relatively easy. :pirate:

Re: Quantum Field Theory Made Easy
« Reply #4 on: April 29, 2014, 09:16:07 AM »
Fuck that shit. I have beers waiting.
We 'new atheists' have a reputation for being militant, but make no mistake  we didn't start this war. If you want to place blame put it on the the religious zealots who have been poisoning the minds of the  young for a long long time."
PZ Myers

Offline stromboli

Re: Quantum Field Theory Made Easy
« Reply #5 on: April 29, 2014, 09:16:27 AM »
I appreciate the effort, JP. But I am a guy that failed Algebra twice. You lost me at "Hilbert Space".   :eek:

Fuck that shit. I have beers waiting.

Coffee here.

Offline aitm

Re: Quantum Field Theory Made Easy
« Reply #6 on: April 29, 2014, 12:38:02 PM »
 :confused:






:think:





 :sad2:





 :wall:





 :vegetasmiley:


New Rule  2431.A  No calling shit easy
Sorry but you are not allowed to view spoiler contents.
A humans desire to live is exceeded only by their willingness to die for another. Even god cannot equal this magnificent sacrifice. No god has the right to judge them.-first tenant of the Panotheust

Offline stromboli

Re: Quantum Field Theory Made Easy
« Reply #7 on: April 29, 2014, 02:18:11 PM »
:confused:






:think:





 :sad2:





 :wall:





 :vegetasmiley:


New Rule  2431.A  No calling shit easy
Sorry but you are not allowed to view spoiler contents.


I've noticed that you tend to take shit kinda personal....

Re: Quantum Field Theory Made Easy
« Reply #8 on: April 29, 2014, 03:20:48 PM »
There is a saying that I heard a quantum mechanics scientist say.  "if you think you understand quantum theory, you don't understand quantum theory '

Sent via your mom


Offline Solitary

Re: Quantum Field Theory Made Easy
« Reply #9 on: April 29, 2014, 03:36:35 PM »
Thanks Joseph! Actually, it is easy to understand if you study the subject and know the mathematical language, but it is just like special relativity and general relativity and even more extremely hard to believe is true because it is not intuitive and abstract. If you don't know the language it is like trying to understand a person speaking Greek. Try infinitesimal calculus where there are infinities of infinities, and the Aleph, if you think this is hard to believe. It all makes sense if you are a mad man.  :doh: :pidu: :borg: :cool: :geek: Solitary
There is nothing more frightful than ignorance in action.

Offline Solitary

Re: Quantum Field Theory Made Easy
« Reply #10 on: April 29, 2014, 03:38:25 PM »
There is a saying that I heard a quantum mechanics scientist say.  "if you think you understand quantum theory, you don't understand quantum theory '

Sent via your mom


Yes! That was Richard Feynman that said that, and he is still correct. Those were his diagrams posted. Solitary
There is nothing more frightful than ignorance in action.

Re: Quantum Field Theory Made Easy
« Reply #11 on: April 29, 2014, 07:02:51 PM »
I'm know I do. There are characters in some of those formulas I don't even know how to type.
LOL.

My next blogs will be on the Path Integral  (Feynman used it to derive the Schroedinger Equation), then Effective Field Theory (a must to understand certain current research) and finally the motherload of all, QFT in Curved Space-Time (what you would need to understand the latest BICEP-2 discovery)

I will try to make them as "easy" as possible.

Re: Quantum Field Theory Made Easy
« Reply #12 on: April 29, 2014, 07:05:40 PM »
There is a saying that I heard a quantum mechanics scientist say.  "if you think you understand quantum theory, you don't understand quantum theory '

Sent via your mom



We understand how some of it works. We still don't understand why it works.

Offline Solitary

Re: Quantum Field Theory Made Easy
« Reply #13 on: April 30, 2014, 04:38:12 PM »
Because God did it? Solitary
There is nothing more frightful than ignorance in action.

Re: Quantum Field Theory Made Easy
« Reply #14 on: April 30, 2014, 05:29:15 PM »