Janna Levin
👤 PersonAppearances Over Time
Podcast Appearances
Right.
Right.
It's a hyperbolic manifold that's identified across.
It's a hyperbolic manifold that's identified across.
It's a hyperbolic manifold that's identified across.
You need to be able to ask a follow-up question.
You need to be able to ask a follow-up question.
You need to be able to ask a follow-up question.
In ways we don't understand.
In ways we don't understand.
In ways we don't understand.
But I can tell you, I'm pretty sure all of them have in common the feature that they're saying, here's what I want my wormhole to look like first. So it's like saying, I want to build a building first. So they construct, there's an architecture of the space-time that they're after. And then they reverse the Einstein equations to say, what must matter in energy first?
But I can tell you, I'm pretty sure all of them have in common the feature that they're saying, here's what I want my wormhole to look like first. So it's like saying, I want to build a building first. So they construct, there's an architecture of the space-time that they're after. And then they reverse the Einstein equations to say, what must matter in energy first?
But I can tell you, I'm pretty sure all of them have in common the feature that they're saying, here's what I want my wormhole to look like first. So it's like saying, I want to build a building first. So they construct, there's an architecture of the space-time that they're after. And then they reverse the Einstein equations to say, what must matter in energy first?
What are the conditions that I impose on matter and energy to build this architecture?
What are the conditions that I impose on matter and energy to build this architecture?
What are the conditions that I impose on matter and energy to build this architecture?
But it's important because it's how they realized, oh, wow, they have to have these negative energies. They have to violate certain energy conditions that we often assume are true. And then you either say, oh, well, then all bets are off. They'll never exist. Or you look a little harder and you say, well, I can violate that energy condition without it being that big a deal.
But it's important because it's how they realized, oh, wow, they have to have these negative energies. They have to violate certain energy conditions that we often assume are true. And then you either say, oh, well, then all bets are off. They'll never exist. Or you look a little harder and you say, well, I can violate that energy condition without it being that big a deal.
But it's important because it's how they realized, oh, wow, they have to have these negative energies. They have to violate certain energy conditions that we often assume are true. And then you either say, oh, well, then all bets are off. They'll never exist. Or you look a little harder and you say, well, I can violate that energy condition without it being that big a deal.