There is small scale project had been done on transportation subject. They only manage to teleport small quantum of light. Nevertheless, more test has to be conducted with more budget to invest. If human was teleported, the body had to be separated into small part (not sure how smaller is it micropart hehe) and will travel through another space. Upon destination, the whole part of pcs will be assembled together. You know if they calculate wrongly, the body would assemble in wrong manner. Just image the head become upside down.