Lyapunov exponents for the Lorentz transformations

[microresearch]

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We calculate the Lyapunov exponents of the complex stretch factor $f^-(z)=(1-z^2)^{-1/2}$ from the Lorentz transformations and of its reciprocal $f^+(z)=(1-z^2)^{+1/2}$ as well.

https://doi.org/10.31219/osf.io/jsncm

Open Mathematics Collaboration

Op. J. Math. Phys.
Volume 3, Article 239, 2021 [JJ]

Spacetime is entangled in a Bell state

[original idea]

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We propose a connection for the Minkowski’s invariant proper time and one of the Bell states.

https://doi.org/10.31219/osf.io/xc4ys

Open Physics Collaboration

Op. J. Math. Phys.
Volume 1, Article 59, 2019 [CG]

Measuring time in meters

[microreview]

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This is a microreview of the natural system of units for pedagogical purpose.

https://doi.org/10.31219/osf.io/4ntwu

Open Physics Collaboration

Op. J. Math. Phys.
Volume 1, Article 26, 2019 [AZ]