Einstein-Rosen Bridge Creation

It might help to check out the Wormhole FAQ (at wwwDOTwebfilesuci.org/wormholeFAQ.html).

It's an excerpt from The Physics of Stargates --Parallel Universes, Time Travel, and the Enigma of Wormhole Physics by Enrico Rodrigo.
(wwwDOTamazon.com/Physics-Stargates-Parallel-Universes-Wormhole/dp/0984150005)

According to the book (based on a bunch of peer-reviewed physics papers):

1. An Einstein-Rosen bridge is totally untraversable (it briefly opens, then immediately closes way too fast to traverse).

2. Travesable wormholes need exotic matter.

3. Exotic matter can exist.

Regarding #3: Exotic matter is defined as matter that violates what's called an "energy condition" -- an attempt to define physical "reasonableness" for matter (e.g. requiring its density to be positive). The weird thing is that every proposed energy condition has failed. There are always counter examples of matter, known to be consistent with the laws of physics, that violate the proposed energy conditions. These usually involve quantum effects. Bottom line: If you can't rule out exotic matter, you can't rule out traversable wormholes.

 

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Actually you don't need 'exotic matter' for wormholes, instead you need 'exotic energy' (which amounts to the same thing, really).

Energy-condition violating exotic matter would repel itself and fly apart into energy anyway, but that's okay, as exotic energy would be just as useful as exotic matter for holding wormholes open.

 

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Einstein would have postulated an exemplary way of doing this.

 

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Yes, quantum field theory often comes along and sticks a fork in some of the basic assumptions of general relativity, it is one of the reasons they are so hard to combine. However, on a practical scale that doesn't necessarily mean that examining wormholes, even if they could be formed in principle, will ever be practical. This is because the difference between the energy scales of gravity and the energy scales of the other forces is so high.

To prise open something at the quantum gravity scale you're going to need a **** ton of energy, trillions of times higher than anything we can currently produce, and it needs to be of the exotic form you mentioned. Things like the Casamir effect can be viewed in terms of negative energy or extracting energy from the vacuum but the effect is tiny. It's possible to use the Casamir effect and a pair of mirrors to pull energy out of the vacuum but the physical conditions which are involved are completely impractical and the energy extracted is on the order of a few individual photons for the expenditure of huge energy reserves. This is much like producing a few atoms of anti-matter currently requires a machine 27km in size means antimatter isn't a practical energy form at present.

Nature is better at producing crazy and powerful phenomena than us (it doesn't have to worry about economic recessions) but even then wormholes are unlikely to be as common and stable (and large) as so many sci-fi shows would have us think

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If wormholes, also called Einstein-Rosen bridges, really existed right here on Earth and could be manipulated by humans then they would certainly make our life a whole lot easier.

If wormholes existed on Earth and say I wanted to go from Haifa (Israel) to Seattle (Washington) then I wouldn't need to cross the whole damn Atlantic ocean in an airplane.

I would just enter the wormhole in Haifa and get out at the exist of the wormhole and see the wormhole close up behind me and boom I'm already in Seattle, Washington.

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Wormholes, if they even existed and could be manipulated by humans, would certainly have made our lives a lot easier because we wouldn't need to cross vast distances in an airplane just to get from say Haifa (Israel) to Fairbanks (Alaska).

 

They are wormholes, and if we had the power, knowledge and means to create one, or to manipulate space/time in another manner, we would be travelling to the stars right now.

Wormholes are a theoretical concept/outcome of Einstein's GR

Do I believe they exist somewhere in the Universe???
I certainly hope so!