In the everyday world, when an object is pushed, it accelerates in the same direction as the force applied to it; this relationship is described by Isaac Newton's Second Law of Motion. But in theory, matter can have negative mass in the same sense that an electric charge can be positive or negative. Despite being completely inconsistent with a common-sense approach and the expected behavior of "normal" matter, negative mass is completely mathematically consistent and introduces no violation of conservation of momentum or energy. Bondi pointed out that negative mass is not contradictory to General Relativity (Rev. Mod. Phys., 1957). Yet surprisingly enough, there is nothing in physics that rules out things having a negative mass, or time moving in either direction. Recently there have been two negative mass experiments, both are separate and independent from each other, in which both are presenting the “opposite from Newton’s Laws”.
Negative Mass Exists and is opposite from Newton’s Laws;
Example 1
Physicists have created a fluid with "negative mass", which accelerates towards you when pushed, which is opposite from Newton’s Law, and is stable (1). Colleagues cooled rubidium atoms to just above the temperature of absolute zero (close to -273C), creating what's known as a Bose-Einstein condensate. In this state, particles move extremely slowly, and follow behavior predicted by quantum mechanics, acting like waves. To create the conditions for negative mass, the researchers used lasers to trap the rubidium atoms and to kick them back and forth, changing the way they spin. When the atoms were released from the laser trap, they expanded, with some displaying negative mass. "With negative mass, if you push something, it accelerates toward you," said co-author Michael Forbes, assistant professor of physics at WSU.
"What's a first here is the exquisite control we have over the nature of this negative mass, without any other complications," said Dr Forbes. This heightened control also gives researchers a tool for exploring the possible relationships between negative mass and phenomena observed in the cosmos, such as neutron stars, black holes and dark energy.
Example 2
The experiment was conducted in zero-temperature super fluids, which are a strange type of fluid that flow with no resistance at all at temperatures close to absolute zero (2). Under those conditions,
Nicolis and his team reported seeing phonons' trajectories bend upwards, seemingly in opposition to the effect of gravity. "In a gravitational field phonons slowly accelerate in the opposite direction that you would expect, say, a brick to fall," one of the team, Rafael Krichevsky. In 2018, however,
Riccardo Penco at Carnegie Mellon University and Niciolis and made an astonishing discovery when observing particle-like sound waves (called phonons) propagating through superfluid helium, cooled close to absolute zero. They found that the phonons moved in upward trajectories, against gravity.
Contrary to classical models of sound waves, this implied that the phonons were coupled to gravity, allowing them to carry minuscule amounts of “negative effective gravitational mass” as they travelled (4),
Example 3
Neutrons Defy Classical Physics in Astonishing Experiment - Quantum theory allows particles to exist in superposition states, defying classical realism. The Leggett-Garg inequality tests this by comparing quantum behavior against classical expectations. Recent neutron beam experiments at TU, Wien confirmed that particles do violate this inequality, reinforcing the validity of quantum theory over classical explanations. In 1985, a way of measuring this was proposed: the so-called “Leggett-Garg inequality.” Any theory that describes our world without the strange superposition states of quantum theory must obey this inequality. Quantum theory, on the other hand, violates it. Measurements with neutrons testing this “Leggett-Garg inequality” have now been carried out for the first time at TU Wien – with a clear result: the Leggett-Garg inequality is violated,
classical explanations are not possible, quantum theory wins. The results have now been published in the journal
Physical Review Letters (5).
So my first thought is if the fabric of space is intertwined with energy and time as Einstein’s GR says, and we can establish that negative energy can exist without disappearing, as other energy waves/particles may not be stable enough to exist in our universe and thus disappear after microseconds. So we see a stable negative mass object, and if negative mass is opposite to the rules of “normal” matter/Newton’s Laws, then can time flow in both directions? Since time would move the opposite (backwards) direction that time would flow from positive matter (forward). Is this possible?
Time runs both ways;
(3) But a few years ago, we experimentally proved the laws of physics are different depending on which direction time runs. Here's how we know.
The second reason is that we live in a Universe where there's more matter than antimatter, but the laws of physics we know are completely symmetric between matter and antimatter. Digging through nearly 10 years of data from billions of particle collisions, researchers found that certain particle types change into one another much more often in one way than they do in the other, a violation of time reversal symmetry and confirmation that some subatomic processes have a preferred direction of time. Lead researcher Dr. Gordey Lesovik, who heads the Laboratory of the Physics of Quantum Information at the MIPT, said: “
We have artificially created a state that evolves in a direction opposite to that of the thermodynamic arrow of time.”
In our everyday experiences, clocks never run backwards; scrambled eggs never un-cook and unscramble themselves; shattered glass never spontaneously reassembles itself. But if you were to look at the laws of physics that govern the way the Universe works — from Newton's laws of motion down to the quantum physics of subatomic particles — you'd find something peculiar and unexpected:
the rules are exactly the same whether time runs forwards or backwards.
Based on this information it is plausible that positive mass follows Newton’s Laws, and Negative mass follow the rules/laws “reversed” and time can flow in both directions since classical explanations are not possible, and quantum theory/superposition wins. Should we explore this possibility? Thoughts?
If the absolute value of positive mass is bigger than that of negative mass, they will meet within finite time(attractive effect). Could this be black holes, and could they grow larger by the negative mass it collects? Is the reason some black holes have the arch going up opposite of the secretion disk, having to do with negative mass as shown create/moved in upward trajectories, against gravity?
1
Physicists observe 'negative mass' - BBC News
2
Researchers suggest phonons may have mass and perhaps negative gravity
3
No, The Laws Of Physics Are Not The Same Forwards And Backwards In Time
4
Sound carries mass | Nature Reviews Physics
5
Mind-Bending Discovery: Neutrons Defy Classical Physics in Astonishing Experiment