Lorentz transformation Definition and 371 Threads

  1. A

    Is the Lorentz Transformation responsible for Quantum Weirdness

    I visited this web site; http://www.electrodynamics-of-special-relativity.com that suggests that there is no contradiction between quantum mechanics and special relativity. The argument is that the full implications of the Lorentz Transformation have never been fully developed. The basic theory...
  2. N

    Lorentz Transformation: What Is It and How To Use It?

    I'm reading Einstein's "Relativity, the Special and General Theory" And it just talked about the Lorentz transformations, but I don't quite understand what it's used for. I understand how the time dilation and length contraction equations are derived from it but I don't understand how to use the...
  3. M

    Calculating Force in System S' Using Lorentz Transformation

    Consider an object of mass m at rest in S acted upon by a force F with components Fx and Fy. Sys tem S' moves with instantaneousvelocity v in teh x direction. Defining the force with F=d/dt (gamma mv), and using the Lorentz velocity transformation, show that a0 F'x=Fx,b0 F'y=Fy/gamma I show my...
  4. Y

    Is T = T^-1 in Lorentz Transformations for 4 Vectors?

    I am not sure wheather matrix T^v_u = {T^u_v}^-1 or T^v_u = {T^v_u} is true? T is a lorentz transformation for 4 vector~ Yuk
  5. E

    QFT Lorentz transformation question

    Hi, Today in QFT class, we examined an infinitesimal Lorentz transformation. From this we showed that a LT is represented by an anti-symmetric matrix. But this means that the diagonal elements should all be zeros. My question is how this reduces to the standard LT with gamma, gamma...
  6. A

    Time in the Lorentz transformation

    where does t`=(t-vx/c^2)/(1-v^2/c^2)^1/2 come from?
  7. H

    Derives the following Lorentz Transformation

    Can someone derive or direct me towards a site that derives the following Lorentz Transformation: t = \gamma t' + \frac{v}{c^2}\gamma x'
  8. quantumdude

    Lorentz Transformation of the De Broglie Relation

    Here is a little puzzle that I'm sure I should know the answer to, but my brain is failing me. Consider a particle with moving with speed u along the x-axis in some frame S. So its (relativistic) momentum is p_x=\gamma_umu. Its DeBroglie wavelength is \lambda=h/p. Now consider the same...
  9. A

    Need help with Lorentz Transformation equations

    A red light flashes at position xr = 3.00 m and time tr = 1.00*10^-9s, and a blue light flashes at xb = 5.00 m and tb = 9.00*10^-9s, all measured in the S reference frame. Reference frame S' has its origin at the same point as S at t = t' = 0; frame S' moves uniformly to the right. Both...
  10. B

    Why does the Lorentz transformation only affect the x axis?

    I am now studying the Lorentz transformation which shares some commonality with the Galiliean transformation. What I'm confused about is how they only seem to transform the x axis. It will help if I write it out. The Galilean transformation looks like: x' = x-vt y' = y z' = z t' = t...
  11. C

    What is the Limits of Lorentz Transformation when (v/c->1)?.

    Is the limit for lorentz transformation when v/c -> 1 known? or Is there a proof which says that such a limit doesn't exist? Please throw light on the above questions.
  12. P

    Harmless Lorentz transformation question

    I have a harmless question which involves using the Lorentz transformations. Suppose that I am an observer in reference frame S, which is stipulated to be an inertial reference frame, and i am located at the origin of the frame (0,0,0). A laser also located at (0,0,0) suddenly fires a photon...
  13. P

    Generalized Lorentz Transformation for an Accelerated Frame of Reference

    This paper by Robert A. Nelson derives an exact, explicit coordinate transformation between an inertial frame of reference and a frame of reference having an arbitrary time-dependent, nongravitational acceleration and an arbitrary time-dependent angular velocity...
  14. G

    Lorentz Transformation - Exponential factor, why not Proportional?

    Lorentz Transformation --- Exponential factor, why not Proportional? When using the Lorentz Transformation, the increase in mass, or the decrease in space-time is an Exponential, why can't it be Proportional? What is the logic behind that? For instance, if SR had a proportional decrease in...
  15. F

    Doing a Lorentz Transformation in the X-Direction

    how does one do a lorentz transformation in the x-direction with v = c/sqrt2. I thought i knew what i was doing with lorentz transformations but now i am confused. While we're at it. Can someone give me a good definition of lorentz transformation. Thanks :confused:
  16. W

    Calculating Time Dilation: A Lorentz Transformation

    Can someone help me with this, How fast, or should I say near the speed of light would someone have to be to see in their time only 6 days go by, but to someone at rest relative to them see 15 billion years. You don't have to work it just give me the equation. Is it just the lorentz...
  17. D

    Understanding the Lorentz Transformation: Unpacking the Mathematical Steps

    I don't know which math forum to put this in but perhaps someone here could help out. I want to figure out the mathematics behind the Lorentz Transformation so I can understand it better. I've got a copy of Einstein's Relativity which was reprinted by Three Rivers Press a few years ago...
  18. H

    The Derivative of Lorentz Transformation

    Lorentz Transformation says x'=\frac{x-ut}{\sqrt{1-u^2/c^2}} Does its derivative \frac{dx'}{dt}=\frac{dx/dt-u}{\sqrt{1-u^2/c^2}} give the velocity addition equation?
  19. S

    Invariant under Lorentz transformation

    HI guys first post :cool: I need to show that B^2-E^2/C^2 is invariant under Lorentz transformation (E and B are electromagnetic fields) now: B^2-E^2/C^2=B^2_x+B^2_y+B^2_z-E^2_x/C^2-E^2_y/C^2-E^2_z/C^2) and E'_x=E_x E'_y=\gamma(E_y-\frac{v}{c}B_z)...
  20. C

    Applying the lorentz transformation

    I am trying to understand how to use the lorentz transformation to calculate things and I have a few questions about it. Suppose I have a circle of radius 1 in frame K which is at rest. Frame k' is moving at velocity v relative to frame k. What would the circle look like to someone in frame...
  21. marcus

    The cosmological redshift is not the result of a Lorentz transformation

    We have a theoretical issue here. There is a misconception floating around PF about the relation of the cosmological redshift to present and past recession velocity. If a redshift is Doppler in origin then in the context of Special Relativity one has Einstein's correction of the Doppler...
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