It seems that space is not rigid and could be folded, given proof it can warp. The power needed tough could not possibly be generated on earth, something like a supernova may do.
The only way to control this would be to control that vast power,,maybe like focusing to some distant point and bringing those points together. It wouldn't be a wormhole per se, just the space between two points removed.
A sci fi series, 'Terra Nova' based on this notion used a form of cosmic energy concentration to create a hypergate. but a one way ticket. A movie used some rare element where a stargate was employed with a dial up address to a companion stargate. created your wormhole between the two. A bit more far fetched and note, this was all science fiction. Another movie even suggested a form of time travel, a detective going back in time to save the life of a dead partner and girl before the events leading to their death. very entertaining bit still fantasy.
>>Yea, 'Stargate' was the name of the one movie.