The Negative Mass
Gravitational force is something which we feel in real life for ex-earth rotates around the sun, mass attracts mass. Everything is fine but what if an atom that has a negative charge at its center and positive charge revolving around it then the conservation rules of physics but will act differently.
Some of them say that it wouldn't follow the Einstein equation but there is a group of scientist who claims that they have found the solution. What if we could create such particles. There is a possibility that it may be a way to create wormholes by which we can traverse long distances in a short time interval by bending the space just like two ends of a line on paper can be connected just by folding a paper.
That particle would move in the opposite direction of the force just like a bubble moves upwards in fluid against the gravity this particle could bend the space and time the closest thing to negative mass is negative pressure density produced by cashimir effect.
Although no particles are known to have negative mass, physicists have been able to describe some of the anticipated properties such particles may have. Assuming that all three concepts of mass are equivalent to the gravitational interactions between masses of an arbitrary sign can be explored, based on the Einstein field equations and the equivalence principle:
- Positive mass attracts both other positive masses and negative masses.
- Negative mass repels both other negative masses and positive masses.
For two positive masses, nothing changes and there is a gravitational pull on each other causing an attraction. Two negative masses would repel because of their negative inertial masses. For different signs, however, there is a push that repels the positive mass from the negative mass, and a pull that attracts the negative mass towards the positive one at the same time.
Hence they pointed out that two objects of equal and opposite mass would produce a constant acceleration of the system towards the positive-mass object, an effect called “runaway motion” by Bonnor who disregarded its physical existence,
This behavior is completely inconsistent with a common-sense approach and the expected behavior of ‘normal’ matter, but is completely mathematically consistent and introduces no violation of conservation of momentum or energy. If the masses are equal in magnitude but opposite in sign, then the momentum of the system remains zero if they both travel together and accelerate together, no matter what their speed:
p=mv+(-m)v
And equivalently for the kinetic energy too.
Forward extended their analysis to additional cases, and showed that even if the two masses m(−) and m(+) are not the same, the conservation laws remain unbroken. This is true even when relativistic effects are considered, so long as inertial mass, not rest mass, is equal to gravitational mass.
This behavior can produce bizarre results: for instance, a gas containing a mixture of positive and negative matter particles will have the positive matter portion increase in temperature without bound. However, the negative matter portion gains negative temperature at the same rate, again balancing out. Geoffrey A. Landis poin
ted out other implications of forwarding’s analysis, including noting that although negative mass particles would repel each other gravitationally, the electrostatic force would be attractive for like charges and repulsive for opposite charges.
In 1970, Jean-Marie Souriau demonstrated, through the complete Poincaré group of dynamic group theory, that reversing the energy of a particle (hence its mass, if the particle has one) is equal to reversing its arrow of time.
The universe according to general relativity is a Riemannian manifold associated to a metric tensor solution of Einstein’s field equations. In such a framework, the runaway motion prevents the existence of negative matter.
Some bimetric theories of the universe propose that two parallel universes instead of one may exist with an opposite arrow of time, linked together by the Big Bang and interacting only through gravitation.The universe is then described as a manifold associated to two Riemannian metrics (one with positive mass matter and the other with negative mass matter). According to group theory, the matter of the conjugated metric would appear to the matter of the other metric as having opposite mass and arrow of time (though its proper time would remain positive).
The Newtonian approximation then provides the following interaction laws:
- Positive mass attracts positive mass.
- Negative mass attracts negative mass.
- Positive mass and negative mass repel each other.
Those laws are different to the laws described by Bondi and Bonnor, and solve the runaway paradox. The negative matter of the coupled metric, interacting with the matter of the other metric via gravity, could be an alternative candidate for the explanation of dark matter, dark energy, cosmic inflation and accelerating universe.
There is two interesting phenomean that are negative temperature and parallel universe …seriously what is negative temperature. Is it even possible we all must have heard about absolute zero temperature but what if the negative temperature is possible? A body which is negatively cold doesn't sound right but what if there is a possibility of negative energy which cools the body….ok ok ok I got it. It is going really hypothetical
let me assure there are infinite possibilities so never trap our self in confined space of thinking. We could unfold many mysteries of the universe that’s all for today negative energy for next time.