Recent content by venkat

i don't get 'w' as expected..try it!

can somebody help me? i have no one to discuss things with as i am studying physics on my own...that's why i put up the question here

can somebody help me? i have no one to discuss things with as i am studying physics on my own...that's why i put up the question here.

since the transformation matrix R is orthogonal, you get the angular velocity as 'w' in the body frame also, since R' = R inverse

since the transformation matrix R is orthogonal, you get the angular velocity as 'w' in the body frame also, since R' = R^-1

it's true that A diagonalises V . but my question is: since a'Ta = 1 , and not a'a = 1 ,( so that a is not orthogonal) isn't A' not equal to (A inverse)?? ...by the way, how did you write (A inverse )...the mathematical way?!

you said : the angular velocity of what? i mean the angular velocity of the body. also, shouldn't the angular velocity of the body be zero in the body frame?

i was reading goldstein (oscillations) in it, it is said that Va = (lambda)*Ta where V is the potential energy matrix, T is the kinetic eneregy matrix, lambda is an eigenvalue and a is the corresponding eigenvector(of displacement from equilibrium) and it is said that the matrix...

WHAT I MEAN IS THIS: R11= Cos(wt) R12= Sin(wt) R13= 0 R21= -Sin(wt) R22= Cos(wt) R23= 0 R31 = 0 R32 = 0 R33 = 1

sorry about the notation for the rotation matrix it should be R = | cos(wt) Sin(wt) 0 | | -Sin(wt) Cos(wt) 0 | | 0 0 1 |

consider a body rotating with a constant angular velocity 'w' along the z axis of the space reference frame.the centre of mass of the body is at the origin of the space system of coordinates. now since 'w' is a vector, it must transorm according to the rotation matrix R (in this case as...

thanks a lot for the links...but i didn't unerstand the conclusions as well as selfadjoint did. the thing is buried in experimenal details. what i could make out was that the use argon lasers a lot in these experiments...and of course, that the method to produce entangled pairs is SPONTANEOUS...

where can i get an online copy of the original paper of Scully and Druhl ( about the quantum eraser experiment) ? and any other good material on the topic . also where can i get something about Popper's experiment? please help.

entanglement is possible only in systems where some quantity is conserved, isn't it? like, in the singlet state, total spin in the z directoion is conserved.

hey ZapperZ, i visited the webpage you mentioned in the link...but where in that page does the author talk about what a measurement IS ?! i did not find a defenition of measurement there!