I Alcubierre Drive & Gravitational Waves: Alien Effects?

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The Alcubierre drive, a theoretical concept for faster-than-light travel, raises questions about its effects on spacetime and gravitational waves. If aliens were to use this drive to reach our solar system, it is debated whether their travel would create significant gravitational disturbances. Current understanding suggests that the Alcubierre drive does not generate gravitational waves within its spacetime framework. The discussion highlights the need for further exploration of how such advanced technology might interact with gravitational physics. Overall, the implications of the Alcubierre drive on gravitational effects remain largely theoretical and untested.
Grasshopper
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If alien people used an Alcubierre drive, would it create notable gravitational waves?
Suppose some aliens travel to our solar system after seeing our radio broadcasts using an Alcubierre drive. Would it not create a notable gravitational disturbance? Or does it leave spacetime undisturbed around it?
 
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As far as I know there are no gravitational waves in an Alcubierre spacetime.
 
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