Timeline for What is the meaning of complex distances in relativity?
Current License: CC BY-SA 4.0
4 events
| when toggle format | what | by | license | comment | |
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| Dec 12, 2022 at 22:34 | comment | added | asmaier | "Since proper time is the time measured on the wristwatch of an inertial observer who is present at both events, an imaginary proper time means that it is impossible for an observer to be present at both events. In other words, nothing could move fast enough to be present at both events. Not even light. And if light isn't fast enough to be present at both events, then there can be no causal connection between them." (phys.libretexts.org/Courses/Skidmore_College/…) | |
| Sep 18, 2021 at 21:09 | comment | added | J.G. | @asmaier No, it means a proper distance of $\sqrt{d\vec{x}^2-c^2dt^2}$. | |
| Sep 18, 2021 at 20:50 | comment | added | asmaier | I'm wondering, does a complex proper time then maybe have the same physical meaning as a complex speed of light (I mean like a complex phase velocity, which means the amplitude of a wave will decay)? | |
| Sep 16, 2021 at 19:54 | history | answered | J.G. | CC BY-SA 4.0 |