Dear Zapped Z, i have read you article but i completely don' t agree with it.
"I have shown that there’s nothing to prevent anyone from knowing both the position and momentum of a particle in a single measurement that is limited only by our technology. ": you are wrong.
As you know, the...
I am studying Group Theory at the moment and i am not sure about a theorem.
Is it true that a Lie Group G is compact if and only if every finite complex representation of it is unitary?
I know that is true the if, but what about the viceversa?
Same question.
Is it true that a Lie group is...
With "serious references" i was only saying "rigorous from a matematical point of view" (i am Italian and my English could lead to misunderstanding).
Anyway thank you George, but unluckly i can' t find in internet the books that you linked to me, i have found only the Ballantine that linked...
During a course of QFT my teacher said that in this theory is not possible to use the operator X for the position in order to construct with the momentum P and the spin S a set of irreducible operators that charachterize particles, and that we need a different point of wiev: the irreducible...
I am at the last year of specialization in theoretical physics, i have also followed in detail a course in group theory and i need a serious reference in order to study in detail the rappresentations of the Poincarè group
I need to study in detail the rappresentations of the Poincare Group, i am interessed in the idea that particles can be wieved as irriducible representations of it.
Do you have some references about it?
The weak gravitational field, the usual h mu nu, satisfies the simple D' Alemebert equation, so the lagrangian is the one of Klein-Gordon replacing the scalar field with the tensorial one in our theory: this will be valid also for the Hamiltonian so i would say the Hamiltonian that i am looking...
In weak field regime i know that it is possible to quantize the gravitational field obtaining a quantum theory of free particles, called gravitons, which is very similar to the one for the electtromagnetic field.
Do you know some book in wiich i can study this theory?
In anycase what is the...
The dinamic of a light ray in a Schwarzschild' s metric is governed by a lagrangian where the potential is V(x)= a*(1/r)^2-b*(1/r)^3 with a and b positive costants.
The presence of a Lagrangian it means that is possible to apply a first quantization of this sistem; if so which are the...
Suppose to have a hamiltonian with a linear potenzial like z x, where x is the variable and z a parameter. Which is the spectrum of the Hamiltonian of this sistem?