i think you can. A very simple one - an optical based one, one qubit. Several thousand dollars of equipment of a typical university photon quantum entanglement

i think you can. A very simple one - an optical based one, one qubit. Several thousand dollars of equipment of a typical university photon quantum entanglement lab. https://en.wikipedia.org/wiki/KLM_protocol https://en.wikipedia.org/wiki/KLM_protocol