The existence of negative gravitational plus positive inertial mass?

[tade]

The term “negative mass” gets puts forth occasionally, and it’s definitions can sometimes be unclear.

the topic I’m interested in is particles which have both positive inertial mass and negative gravitational mass.

So far, what theories do physicists have of speculating on the existence of such particles?

 

[MathematicalPhysicist]

Well mass cannot be negative, but the effective mass tensor can have negative entries.

 

[tade]

Well mass cannot be negative, but the effective mass tensor can have negative entries.

which mass are you referring to?

i‘m referring to particles with negative gravitational mass and positive inertial mass

 

[fresh_42]

The term “negative mass” gets puts forth occasionally, and it’s definitions can sometimes be unclear.

Indeed. Please provide a reference what this should be per PM to me.

Until then this thread is closed as pure speculation.