Introduction

Welcome Mad Scientist,

Nice artist that Nikola Tesla, a true genius. What do you think about moisture?

It makes things sticky.

what do you think about anti-humidity paint mr. scientist?

Welcome! 
 

...and read the rules!

(im sorry i had to be THAT guy)

  On 8/26/2020 at 6:35 PM, Tim_J said:

what do you think about anti-humidity paint mr. scientist?

Too basic.

  On 8/26/2020 at 6:41 PM, xox said:

Welcome! 
 

...and read the rules!

(im sorry i had to be THAT guy)

No problem, there is always such guy in science conventions. I understand you are sorry to be that guy and I will happily forgive you.

Most achievements are not because great man followed all the rules, in science great achievements are based on rules that did not comply.

On the other hand, I do not know what rule I have broken. I searched for an introduction topic but did not find one.

Read the rules

Please read the following rules of quantum mechanics:

1. A quantum system is described using a Hilbert space H. Often, this Hilbert space is assumed to be separable.

2. A pure state of a quantum system is represented by a normalized vector |ψ〉 in H; state vectors differing only by a phase factor of absolute value 1 represent the same state. In the position representation, where the Hilbert space is the space of square integrable functions of a position vector x, ψ(x) is called the wave function of the system.

3. The time evolution of an isolated quantum system represented by the state vector |ψ(t)〉 is given by iℏddt|ψ(t)〉=H|ψ(t)〉 where H is the Hamilton operator and ℏ is Planck’s constant. This is the Schrödinger equation. This rule is valid in the formulation of quantum mechanics called the Schrödinger picture. There are other, equivalent formulations of the time evolution, especially the Heisenberg picture and the Dirac (interaction) pictures, where time evolution is entirely or partially shifted from the state vector to the operators.

4. An observable of a quantum system is represented by a Hermitian operator A with real spectrum acting on a dense subspace of H.

5. The possible measured values of a measurement of an observable are the spectral values of the corresponding operator A. In case of a discrete spectrum, these are the eigenvalues a satisfying A|a〉=a|a〉.

6. Let {|a〉} be a complete set of (generalized) eigenvectors of the self-adjoint operator A with spectral values a. Let the quantum system be prepared in a state represented by the state vector |ψ〉. If a measurement of the observable corresponding to A is performed, the probability  pψ(a) to find the measured value a is given by pψ(a)=|〈a|ψ〉|2 This is the Born rule, in a formulation that assumes that all eigenvalues are nondegenerate.

7. For successive, non-destructive projective measurements with discrete results, each measurement with measuring value a can be regarded as preparation of a new state whose state vector is the corresponding eigenvector |a〉, to be used for the calculation of subsequent time evolution and further measurements. This is the von Neumann projection postulate.


 

Any chance you're going to solve that quantum entanglement mess any time soon?

  On 8/27/2020 at 6:42 AM, Braintree said:

Any chance you're going to solve that quantum entanglement mess any time soon?

Mess?

Any chance you're going to solve the issue of the rules not being read any time soon?