Device creates negative mass and a novel way to generate lasers

Re:Device creates negative mass and a novel way to generate ... by danharaj on Friday January 12, 2018 @10:32AM (#16133606)

Re: Alcubierre drive

It needs imaginary mass, not just negative mass.

Edit: I confused the drive's requirements with tachyons.

[ Parent | on HN ]

Re:Device creates negative mass and a novel way to generate ... by thrill on Friday January 12, 2018 @10:34AM (#16133625)

Just take the square root of the negative mass and there you are.

[ Parent | on HN ]

Re:Device creates negative mass and a novel way to generate ... by godelski on Friday January 12, 2018 @06:18PM (#16137156)

Also what they produced here is not the exotic matter that would be required in an Alcubierre drive.

Also, tachyons have imaginary mass. IIRC Alcubierre drive requires a negative energy density. And commonly they use a term called "exotic matter", which is an extremely vague term.

[ Parent | on HN ]