So if we split a photon?

[CockerS]

What would happen of string level? Would we rip a sting in two?<br />
<br />
And if we can't split them. What's up with that?"which splits one short-wavelength photon into two longer-wavelength photons"<br />
http//www.laserfocusworld.com/display_article/243219/12/ARCHI/none/Feat/Photonics-Frontiers-Entangled-photons-%E2%80%98spooky-action%E2%80%99-works-at-a-distanc<br />

 

[kasilas]

You can split a photon in two by interacting with it as your link describes.

This causes no deep consequences in the String hypothesis? If the string hypothesis was to be proved it would have to fit with quantum electrodynamics (or QED as it's known). It is QED which perfectly describes the photon interaction you describe.

The splitting works as follows. Basically you shine a photon onto an atom that absorb the photon. The absorption causes the atom's electron to move into a high orbit (or excited state). The atom's electron then falls back into an intermediate state then back to the ground state.

As both atomic transitions release a photon the incident photon has been split into two lower energy photons. (You can also have a single transition that releases two photons.)