The existence of negative gravitational plus positive inertial mass?

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SUMMARY

The discussion centers on the concept of particles possessing both positive inertial mass and negative gravitational mass. While the notion of "negative mass" is frequently debated, it is established that mass itself cannot be negative; however, the effective mass tensor may exhibit negative entries. The conversation highlights the ambiguity surrounding definitions of negative mass and concludes that without concrete references, the topic remains speculative and unsubstantiated.

PREREQUISITES
  • Understanding of mass concepts in physics, specifically inertial and gravitational mass.
  • Familiarity with effective mass tensor and its implications in theoretical physics.
  • Basic knowledge of particle physics and current theories regarding mass.
  • Awareness of speculative theories in modern physics.
NEXT STEPS
  • Research the implications of effective mass tensor in quantum mechanics.
  • Explore theories related to negative mass in theoretical physics literature.
  • Study the distinctions between inertial mass and gravitational mass in detail.
  • Investigate current experimental approaches to detect or validate the existence of negative mass particles.
USEFUL FOR

This discussion is beneficial for theoretical physicists, students of advanced physics, and researchers exploring unconventional mass theories and their implications in modern physics.

tade
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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?
 
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Well mass cannot be negative, but the effective mass tensor can have negative entries.
 
MathematicalPhysicist said:
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
 
tade said:
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.
 

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