If a glass of water flows on the ground, the water cannot be determined, which is unthinkable to return each water molecule to return their course again. To do this, it would be time back, as we know, it cannot be done. If the water flows or does not, but if so, it will continue.
Thus, while we experience it is asymmetrical. We have memories of the past than the future, and no spilled water returns to his cup, as it does not return the arc to the arrow that has flown. In our daily life “The arrow of time“It only goes in one direction: forward.
“We know (this) is something that is part of our ordinary experience,” he says Andrea RoccoTheoretical physicist at Surrey University of England. But exactly the time arrows are created for physical, partly to describe the most in the world Mathematics that does not distinguish between time and vice versa moving time. The direction is perfect, regarding equations.
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Where in place, the concept of “time” becomes an excitement in the absence of a change. For example, in a magical box that floats deep space, if it has been very isolated and physically harmful, this “system” has been the same since he was examined for five years or five millenniums. So what is the arrow of time to fly inside the magical Stasis box? For such insulated systems, it is believed to be a symmetric time; This symmetry is only “open” to influence the external environment, whether the evaporated water or cup is thrown.
And yet open and isolated systems are linked. Even if our water cup is insulated from the outside world, his molecules would still be randomly used by microscopic effects of the time symmetry, like the cosmic clock marks. So why does this disagreement exist, and what does it mean to study the role of the reality we use about the validity of the physical models?
Different researchers These questions have been addressed in different waysBut Rocco and his colleagues reviewed some math behind inconsistency to see an alternative approach that can fix apparent asymmetry. Their effects were recently published Scientific reportsTwo anti-arrows anti-arrows, in open quantum systems.
That is, as if our water cup knife was balanced. But the other, the drink that the others will fall does not flow into another way. In any case, speaking mathematically, the end result is the same, it stores symmetry for possible cases. “In a sense, we are stuck in this universe in which it enters a single direction,” Rocco explained. “But the events of the motion we are looking at would like They allowed the universe to go in the other direction. “
Thus, as a regular understanding, in two cases, the symmetry of time is displayed, that an external environmental impact does not impose the arrow of the time or “defined”, Rocco says. In other words, the work of the researchers suggests that the arrow of time is the spontaneous feature of an open quantum system than its established history.
Adds new jobs Some interesting questions about what physicans believe that they are important in their periods of studies. Michele campisiResearch at the nanoccience in the Institute of Nanoscience, a theoretical Physicist who did not participate in the study, took the role to take his brave, and has warned the subjective malniance of the time arrow. “How” and “Woms’ flies” is subject to a preferred interpretation of quantum mechanics. For example, the more general view of events can also be seen as much more part of a larger system system.
However, this article shows how we understand that our search is very far from understanding the quantum royalm, says James CresserNow Professor withdrawn Physics. “This (helps) that certain equations describes the dissipation of behavior are usually due to time-inverted variants, so it is the theoretical indicator of a particular physical condition,” Cresser said. (Approximately “Enlightening Discussion” was grateful to the study and Thomas Guff taught themselves as a degree, but did not help him directly at work.)
For example, when water flows, a type of dischanger called Mechanics and Thermodynamics, in which a system gradually expands, or “diskolaten” and “lost” information. In this example, the information is the private arrangement of water molecules within the cup earlier. Disipative processes are asymmetrical in terms of time because the initial configuration does not matter to the final situation, as it explains Nicole Yunger HalpernPart of the new study was not a physicist in the standard standard and technology institute.
However, this type of interpretation necessarily depends on how a system should evolve. For example, if we want to see both films, water spills and another, another that returns to the glass of water, is that the second film is excited and impossible to say that it is impossible and just to go back. Thus, the asymmetrical arrow of time is somehow, “more serious phenomenon”, Yunger Halpern says. “Sometimes people (this) calls the psychological arrow of time”. “
All said, perhaps the concept of the time arrow, or is not “scaffolding to label all the events that take place in the world of man” man’s brain “,” Cresser said. “But the events are not based on scaffolding. What we are doing with these equations is applying a temporal scaffolding compared to a possible temporal scaffolding.”
In this case, our questions about time could never be answered, well, without time. “We are inevitably buried in time, we can never escape the deep part of our existence,” says Cresser.
