Light can be emitted from the atom but light is not part of the atom. Electron can be emitted from the atom but electron is not part of the atom.
The distance between two poles at different locations on the ground never changes. For an accelerating observer, both poles move in the rest frame of the observer. The locations of each pole can be calculated with the definition of acceleration and velocity. The calculation shows that the distance between two poles is identical in both the observer frame and the pole frame. Therefore, the Lorentz transformation does not match the actual positions. It is not a valid description of physics. Any theory based on the Lorentz transformation cannot be literally correct in describing actual physics.