It's not terribly difficult to see why the realms of both science fiction and fantasy are so obsessed with teleportation. If we were to somehow develop such a technology, it'd render most other modes of transportation virtually obsolete, granting us the ability to travel vast distances in the blink of an eye.
Unfortunately, it looks like it's going to remain wholly grounded in the realms of fiction for the time being. The University of Leicester Journal of Special Physics - which covers a whole range of awesomely nerdy topics ranging from whether or not Chocobos can fly, if Mars could be terraformed or the process involved in creating a Death Ray - earlier this month published a piece looking into the science surrounding teleportation.
It doesn't look good.
The article, written by Declan Roberts, James Nelms, Suzanne Thomas and David Starkey, examines teleportation technology based on the amount of data which would theoretically make up a human being, based on the size of the human genome - approximately ten billion bits. Taking this into account, the researchers then calculated it would take somewhere around 2.6 tredecillion bits to download and re-upload all the information. Even using the same bandwidth as Satellite communication, the process of transferring such a colossal amount of data would take nearly five quadrillion years - 350,000 times longer than the existence of the known universe.
Hey, look at it this way - by the time such an upload finishes, maybe we'll have developed time travel!