Lorentz transformation

Lorentz transformations form the group of linear isometries of Minkowski space.

In physics, a Lorentz transformation is the conversion of space and time between two different inertial frames of reference.

According to Einstein the principles of Special Relativity are mathematically expressed by Lorentz transformations owing to which it is possible to transform equations for mechanical and electromechanical phenomena between inertial systems.[1]

## Contents

* 1 Mathematics of the Transforms
* 1.1 Displacement and Time
* 1.2 Velocity Transforms
* 2 See also
* 3 References
* 4 External links

## Mathematics of the Transforms[edit]

### Displacement and Time[edit]

The transformation from one coordinate system  to another system, , moving past this one at speed u, and with  and  axes colinear is:

where  is the Lorentz factor[2].

### Velocity Transforms[edit]

The velocity transforms can be found by differentiating the displacement transforms with respect to time. For the above coordinate systems, we find:

Note how the transformations for velocity in the y and z directions also depend on the velocity of the particle in the x direction, not just the relative speed between the frames of reference. This is different to the displacement transformations, in which y and z are independent of x.

## See also[edit]

* Albert Einstein
* Hendrik Lorentz
* Relativity

## References[edit]

1. ↑ Michal Andrle. Whitheadova Filosofie Přírody (in Czech). Prague: Charles University, 155\. ISBN 978-80-87378-22-9.
2. ↑ Bradley W. Carroll, Dale A Ostlie. An Introduction to Modern Astrophysics (in English). London: Pearson.

## External links[edit]

* Deriving Lorentz transformation by Minkowski geometry