All Questions
Tagged with warp-drives speed-of-light
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Would the effective speed of an Alcubierre drive be limited by the propagation speed of gravity?
The idea of a warp drive is to "expand space behind the ship and contract it in front"- in this way reaching a target destination faster than one could conventionally. However, the actual ...
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Why would FTL travel break causality, as oppose to the relative time reconciling as in the Twin Paradox? [duplicate]
I have heard that if faster than light travel were ever made possible, such as by an Alcubierre drive, the user would be taken backwards in time, violating causality.
This is odd to me, as it already ...
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Can spacetime warp at a rate faster than light?
If you could decrease the distance between here and the nearest star by, say, four light years, wouldn't it take four years for that distance to disappear? For this reason, wouldn't so called "warp ...
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What would be the implications of faster-than-light travel? [closed]
In $1994$, Miguel Alcubierre, a theoretical physicist and long-time Star Trek fan proposed a mathematically-sound method of manipulating spacetime to allow for faster-than-light travel, essentially ...
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Do Gravitational Waves disprove superluminal Alcubierre drive?
I am not a physicist.
But... does the rate at which gravitational waves travel set an upper limit to the "speed" of a ship propelled with Alcubierre drive?
Or does it present a relativistic trick (...
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How does a world line of an Alcubierre drive look like?
In my recent question ”Speed of light and warp drives in general relativity” I asked exactly how an Alcubierre drive worked and exactly what "FTL travel" meant.
One of the comments I got stated that:
...
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Alcubierre Drive - Clarification on relativistic effects
On the Wikipedia article on the Alcubierre drive, it says:
Since the ship is not moving within this bubble, but carried along as the region itself moves, conventional relativistic effects such as ...
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