Hang 10 in Space

This has a certain familiar ring to it, i.e. "surfing a wave" of spacetime:

"Think of it like a surfer riding a wave," said Gerald Cleaver, a physicist at Baylor University. "The ship would be pushed by the spatial bubble and the bubble would be traveling faster than the speed of light."

Strange as it sounds, current evidence supports the notion that the fabric of space-time can expand faster than the speed of light, because the reality in which light travels is itself expanding.

Cleaver and Richard Obousy, a Baylor graduate student, tapped the latest idea in string theory to devise how to manipulate dark energy and accelerate a spaceship. Their notion is based on the Alcubierre drive, which proposes expanding space-time behind the spaceship while also shrinking space-time in front.

Now, somebody help me out here, where did we talk about the Alcubierre drive before.  And, hasn't the B2 been described as "surfing an electrogravitic wave" of positively charged space behind it an negatively charged space in front of it?  Is there a trend here?