Though only theoretical, wormholes do have equations associated with them. The equations I'm interested in is the theoretical energy requirements for the creation and maintaining of a wormhole. I have a few questions regarding wormholes. I'd be greatful for any replies:

1) What is the relationship between the diameter of a spherical wormhole and the energy required to create it? According to one source, creating a wormhole 3-feet in diameter would require an amount of negative energy similar to the mass of Jupiter. That's not specific enough for me. I'm looking for a more hard-edged figure than 'around Jupiter's mass'. This also doesn't tell me the exact relationship between size and mass (would a 1-foot diameter wormhole require 1/3 Jupiter's mass for instance?).

2) Is wormhole shape related to its energy requirements? Would a circular wormhole (like a portal) with a diameter of 1-foot require a different amount of energy than a spherical wormhole with a diameter of 1-foot?

3) What is the relationship between the distances of the wormhole mouths and the energy required to make a wormhole? Does it take more energy to create a wormhole whose mouths are 1,000 lightyears apart than it does to create a wormhole whose mouths are only 10 feet apart? Does energy factor into distance at all?

4) Do wormholes require constant energy imput? For instance, lightbulbs must have a constant source of energy to shine. If the source is gone, they go out. Do wormholes work like this, or do they only require a set amount of 'activation energy' to be created? Is this activation energy negative (requiring 'exotic matter')?

5) What are the differences in conditions needed to establish an interuniversal (between two universes) and an intrauniversal (between two parts of the same universe) wormhole? How would someone go about creating one type as opposed to the other?