Well, i know how the values of <x> and <E> are calculated and that energy is quantized but the position for example is not , but to be honest i don't understand why the conjugate ψ* has different index. The only thing i can think is that we lose the factors A12 and A21 when calculating <A> (what...
Thanks a lot for your reply.
it bothers me for some time
So for example,(ψ=c1ψ1 + c2ψ2) when calculating the average position (or any other Item A) of a particle, if we had the same summation index we wouldn't have the terms X_12 and X_21. But when we calculate the energy we don't have...
Hi there.
A quick question: When calculating the average energy (or any value) of a particle which is in superposition, why the sums have different summation index (n,m)?
Thanks!
Hi
Can someone please explain me what is the symmetry energy?
I know asymmetry energy in the weizsacker semiempirical mass formula which is the gap between a nucleus and it's isobar with Z=N.
Homework Statement
\int e^{-\frac{2Zr}{a}}*r^{-1}dr Boundaries:[0,R]
Homework Equations
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The Attempt at a Solution
I tried to solve this with lower incomplete gamma function and got \gamma(0,\frac{2ZR}{a}) which is infinite i think.
Z=81,a:Bohr radius,R=r0*A^(1/3)...
Solved!
Abstract the n-1 column from the n column, then the n-2 from the n-1, then the n-3 from the n-2 etc.You get:
|x+L -L 0 0 . . .0 0 0 |
| x L -L 0 . . .0 0 0|
| x 0 L -L . . .0 0 0|
| x 0 0 L . . .0 0 0 |
| . . . . . . . . . . . |
| . . . . . ...
Can someone help me proove this one please?
If M is an nxn matrix
_____|x+L x x . . . x |
_____| x x+L x . . . x |
|M|= | x x x+L. . . x | = [L^(n-1)]*(nx+L)
_____| : : : : : : : : |
_____| x x x . . . x+L|
Hi there
First of all excuse my English.
My question is:
Why a nucleus with more neutrons than these in the valley of nuclear stability are not stable
and are beta(-)?
I know that a nucleus with high mass number have more neutrons than protons because the more the protons the...