Planck length at high speed

Imagine I had a ruler 1 planck length long, I then send it on a rocket close to the speed of light, does its length contract? It seems to my simple intuition, relativity would say yes and Qm would say no. Is there a simple solution to this ?

kimbyd
Gold Member
Imagine I had a ruler 1 planck length long, I then send it on a rocket close to the speed of light, does its length contract? It seems to my simple intuition, relativity would say yes and Qm would say no. Is there a simple solution to this ?
I don't think making the ruler that short is likely to make a difference. Special relativity and quantum mechanics are perfectly compatible (via Quantum Field Theory). There would be length contraction, regardless of the physical size of the ruler.

phinds