Recent content by J.Asher

  1. J

    The total sum of forces in circular motion in gravitational field

    Hello, I am now studying centripetal force. and the problem is that centripetal force in gravitational field. Let's talk about Ferris-wheel ride, this ride has some rooms to carry people and fixed to the edge of the wheel. Since it is rotating periodically, its magnitude of net force...
  2. J

    Entanglement and two particle system

    When a two-particle state cannot be written as one product of one-particle states, it is said to be entangled. So if both your coefficients c1 and c2 are non-zero, the two-particle state is entangled. What does it mean? I think if c1 and c2 are non-zero, it does means that the two-particle state...
  3. J

    Entanglement and two particle system

    Hello, I am planning to talk about the entanglement for the presentation but now I am a bit confused of between entanglement and many-particle system. Actually, I have only studied two-particle system when dealing the total angular momentum. let me assume that there are a photon and an electron...
  4. J

    Uncertainty principle between Kinetic energy and Potential energy

    Homework Statement Let's say T is kinetic energy and V is Potential. Then, find a principle between T and V by using dA^2dB^2 (larger or equal) {(1/2i)(<[A,B]>)}^2 3. The Attempt at a Solution First I try to find commutator of T and V, [T,V] then it gives little bit dirty...
  5. J

    How do I determine orthogonal eigenvectors for a repeated eigenvalue?

    The operator we handle is Hermitian since Hamlitonian is real physical operator. it is no doubt that the eigenvectors of the Hermitian is orthogonal. Actually I cannot understand what you are saying. What do you mean by that? ...??
  6. J

    How do I determine orthogonal eigenvectors for a repeated eigenvalue?

    Homework Statement There is an Hamiltonian operation which is given by (2 1 1) (1 2 1) = H ; 3-by-3 matrix (1 1 2) And let's have an arbtrary eigenvector (a) (b) = v ; (3x1) matrix (c) Then, from the characteristic equation, the eigenvalues are 1,4. Here eigenvalue 1 is...
  7. J

    What information will you send to aliens?

    I appreciate your kind regards, then you will be the first one whose address is exposed by aliens.
  8. J

    What information will you send to aliens?

    Do you know guys that every satelites have some note that contains all about the Earth and human? It is to inform our information to aliens. And many people tried to infrom human's culture such as music and some great pictures and a lot of languages including English. And I thought...
  9. J

    Is the particle able to penetrate finite barrier?

    Ah I am sorry... I had a mistake on saying the region in which the potential finite. V=infinity, where x<0 V=-V (negative constant), where 0<x<a V=0, where x>a maybe the problem doesn't give any gurauntee that the particle is in 0<x<a initially. anyway, what I get thru this problem...
  10. J

    Is the particle able to penetrate finite barrier?

    I acknowledge that I had mistaken about which the state particle is under but I didn't ask for the particle in the region x<<0, but x>>a. After I upload this, I got some approaching for this problem that in the region 0<<x<<a, the wave funtion for the particle would have sin and cos and...
  11. J

    Is the particle able to penetrate finite barrier?

    Let's have a kind of step potential, V=infinity, where x\leq0, V=constant, where 0\leqx\leqa, V=zero , where x\geqa. Then, my question is that when the energy of the particle is lesser than zero, which means that the particle is in the bound state, is there a probability of getting...
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