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Physicists Reverse Time Using Quantum Computer (phys.org)
fahrbot-bot shares a report from Phys.Org: Researchers from the Moscow Institute of Physics and Technology teamed up with colleagues from the U.S. and Switzerland and returned the state of a quantum computer a fraction of a second into the past. They also calculated the probability that an electron in empty interstellar space will spontaneously travel back into its recent past. The study is published in Scientific Reports.
Quantum physicists from MIPT decided to check if time could spontaneously reverse itself at least for an individual particle and for a tiny fraction of a second. That is, instead of colliding billiard balls, they examined a solitary electron in empty interstellar space. "Suppose the electron is localized when we begin observing it. This means that we're pretty sure about its position in space. The laws of quantum mechanics prevent us from knowing it with absolute precision, but we can outline a small region where the electron is localized," says study co-author Andrey Lebedev from MIPT and ETH Zurich. The physicist explains that the evolution of the electron state is governed by Schrodinger's equation. Although it makes no distinction between the future and the past, the region of space containing the electron will spread out very quickly. That is, the system tends to become more chaotic. The uncertainty of the electron's position is growing. This is analogous to the increasing disorder in a large-scale system -- such as a billiard table -- due to the second law of thermodynamics.
"However, Schrodinger's equation is reversible," adds Valerii Vinokur, a co-author of the paper, from the Argonne National Laboratory, U.S. "Mathematically, it means that under a certain transformation called complex conjugation, the equation will describe a 'smeared' electron localizing back into a small region of space over the same time period." Although this phenomenon is not observed in nature, it could theoretically happen due to a random fluctuation in the cosmic microwave background permeating the universe. The team set out to calculate the probability to observe an electron "smeared out" over a fraction of a second spontaneously localizing into its recent past. It turned out that even across the entire lifetime of the universe -- 13.7 billion years -- observing 10 billion freshly localized electrons every second, the reverse evolution of the particle's state would only happen once. And even then, the electron would travel no more than a mere one ten-billionth of a second into the past. The researchers then attempted to reverse time in a four-stage experiment by observing the state of a quantum computer made of superconducting qubits, instead of an electron. The researchers "found that in 85 percent of the cases, the two-qubit quantum computer returned back into the initial state," reports Phys.Org. "When three qubits were involved, more errors happened, resulting in a roughly 50 percent success rate. According to the authors, these errors are due to imperfections in the actual quantum computer. As more sophisticated devices are designed, the error rate is expected to drop."
Quantum physicists from MIPT decided to check if time could spontaneously reverse itself at least for an individual particle and for a tiny fraction of a second. That is, instead of colliding billiard balls, they examined a solitary electron in empty interstellar space. "Suppose the electron is localized when we begin observing it. This means that we're pretty sure about its position in space. The laws of quantum mechanics prevent us from knowing it with absolute precision, but we can outline a small region where the electron is localized," says study co-author Andrey Lebedev from MIPT and ETH Zurich. The physicist explains that the evolution of the electron state is governed by Schrodinger's equation. Although it makes no distinction between the future and the past, the region of space containing the electron will spread out very quickly. That is, the system tends to become more chaotic. The uncertainty of the electron's position is growing. This is analogous to the increasing disorder in a large-scale system -- such as a billiard table -- due to the second law of thermodynamics.
"However, Schrodinger's equation is reversible," adds Valerii Vinokur, a co-author of the paper, from the Argonne National Laboratory, U.S. "Mathematically, it means that under a certain transformation called complex conjugation, the equation will describe a 'smeared' electron localizing back into a small region of space over the same time period." Although this phenomenon is not observed in nature, it could theoretically happen due to a random fluctuation in the cosmic microwave background permeating the universe. The team set out to calculate the probability to observe an electron "smeared out" over a fraction of a second spontaneously localizing into its recent past. It turned out that even across the entire lifetime of the universe -- 13.7 billion years -- observing 10 billion freshly localized electrons every second, the reverse evolution of the particle's state would only happen once. And even then, the electron would travel no more than a mere one ten-billionth of a second into the past. The researchers then attempted to reverse time in a four-stage experiment by observing the state of a quantum computer made of superconducting qubits, instead of an electron. The researchers "found that in 85 percent of the cases, the two-qubit quantum computer returned back into the initial state," reports Phys.Org. "When three qubits were involved, more errors happened, resulting in a roughly 50 percent success rate. According to the authors, these errors are due to imperfections in the actual quantum computer. As more sophisticated devices are designed, the error rate is expected to drop."
Quantum mechanics defines the position of the electron as a probabilistic random model.
You calculated the probability of it moving back to the same place in that model.
You then measured that in a system that is cleaner, and it violated that probability.
Ergo you've disproved QM's random position model.
Rather than accept the QM model is wrong, you're disavowing causality and reversing time to fix it up.
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Probalistic model of electron
You're measuring the position of the -ve monopole. It's dancing around randomly and at seemingly infinite speed violating conservation of momentum, so Schrodinger declared it's position to be 'probablistic' to fix that up momentum problem.
That was a physics fix-up. An unproven one. Now you've proven it to be false (again). And again you won't accept the conclusion.
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The electron is moving with the oscillating electric F field. It is never 'smeared out', it is always in one place, it simply follows the best slot in the oscillating field as the field oscillates under it. It's doing no work, as long as it stays in the same slot in the field. It has no mass.
It will return to the same position at some multiple of F oscillations if you had it perfectly isolated in a perfectly clean F field. Or in this case, you're trying to force a clean F field to get it back to its original position.
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Resonant electric field is UNDENIABLE
1. Look, you've seen oscillations in particles
2. You know that all sub-atomic particles have charged components, even Neutrons can be spread into two charges. You observed this.
3. So you know that there is an oscillating electric field because oscillations + electric = oscillating electric field!
4. The existence of the oscillating electric field is UNDENIABLE.
5. That the field would even out, as it pushes and shoves, is also UNDENIABLE.
6. Resonance is UNDENIABLE.
7. And so the electron must be moving in that field, again UNDENIABLE consequence of the above thought experiment.
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8. And light must be moving over that field, because its electro-magnetic, it MUST BE RESONANT with the resonant field, because it is electric in nature! How could it move against resonance without experiencing the same pushes and pulls?
9. Since the motion of light is a result of this electric field, speed of light comes from the field, so the electric force (lets start calling it Electric-H0 ) must propagate infinitely fast. Speed of light comes from resonance, resonance comes from oscillations of electric-H0, so electric-H0 cannot depend on the speed of light.
10. So we have an oscillating electric field, lets call that electric-H1 whose oscillations at some arbitrary frequency F, match/drive the speed of light. i.e. motions over electric-H1 happen at the speed of light, because the speed of light is driven by those oscillations!
electric-H0 is the underlying force.
electric-H1 is the force oscillating at some universe frequency F.
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You only know electric-H1
11. You've only ever made electric forces using electrons, these are dancing in the F field, so you've only ever known electric-H1. You've never understood electric-H0 force, the models you have are for electric-H1.
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There is no mass.
Velocity isn't driven by momentum, which is driven by mass, which is created by velocity, which is driven by momentum, which is driven by mass, which is created by velocity, which is driven by momentum..... loop infinitely.
That was circular reasoning. It's difficult to let go of mass, and you keep trying to save it, even if it means screwing up time and space and everything else.
In classical physics it was 'quantity of matter'.
In modern physics its 'quantity of energy'.
In reality it's "measure of stickiness at current F". A useless metric!
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There *is* time
1. Consider a world where there is only two charged particles -ve, +ve. One force, electric, no ma
I notice you omitted two things:
1. A defense of this 'reverse time' claim
2. A logical disprove of my claim.
Really, its sad, they've disproved Schrodinger, that's big news, big science, but that's not where the money is at. Congress science budget approved $1 billion for quantum conputing research (sic), and if you want to get a slice of that research fee, you have to suspend a little disbelief and pretend time is being reversed.
Without Schrodinger, the electron isn't in all places till detected and the quantum conputer isn't testing all solutions to find the optimal one. Poof there goes the budget and there goes the funding with it.