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IEVref:113-07-12ID:
Language:enStatus: Standard
Term: special Lorentz transformation
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Definition: transformation of four-vectors from one inertial frame S to another inertial frame S′ with parallel coordinate axes xk||xk,k=1,2,3, while moving along one of these axes usually denoted by k=1

Note 1 to entry: The term “special” in "special Lorentz transformation" is used with a different meaning than that in the term “special theory of relativity”.

Note 2 to entry: For a position vector (x0=c0t,x,y,z) and β=(β,0,0) as the velocity of S′ regarding to S, the special Lorentz transformation reads

c0t=γ(c0tβx)x=γ(xβc0t)y=yz=z

For a position vector (x0=jc0t,x1,x2,x3) in a complex form with pseudo-Euclidian metric, and β=(β,0,0) as the velocity of S′ regarding to S, the special Lorentz transformation reads

x0=γx0jβγx1x1=jβγx0+γx1x2=x2x3=x3

showing that the special Lorentz transformation is a rotation in a complex plane (x0;x1) with a complex angle φ where tanφ=β.

Note 3 to entry: Two special Lorentz transformations along the same axis result in a special Lorentz transformation along the same axis. Two special Lorentz transformations along different axes usually result in a general Lorentz transformation.


Publication date:2022-06
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