Can we get quantum spocy without confusion?

Can we get quantum spocy without confusion?

Can we get quantum spocy without confusion?

Light particles appear to be displaying quantum strange and even when they are not confused

Vladimir Bulgar/Science Photo Library

It seems that the particles who are not confused have achieved a high score in the famous confusion test. This experience can give a new look at what the Quantum world has made strange.

About 60 years ago, physicist John Stewart Bell developed a test because our world was described by quantum mechanics or by a set of more traditional ideas. The key difference is that quantum theory contains “non-locality”, or effects that can spread at any distance-even too large. Surprisingly, all the experiments that have implemented the Bell Test to date have confirmed our physical reality, suggest that we live in the quantum world.

However, these experiments included particles connected by quantum confusion. At Nanjing University in China, now Xiao Sangam Ma and his colleagues say they have promoted the bell test without using confusion. He says, “Our new work can provide a new approach to people’s understanding of non -local communication.”

The experiment began with four special crystals, each of which excluded two particles of light, or photon, when illuminated with lasers. Photon had many properties that researchers could measure, including polarization and stage, which describes the light wigs when viewing as an electromagnetic wave. Researchers traveled these photons before targeting detectors through optical devices, such as crystal and lenses.

In an ordinary bell test experience, two fictitious veteran, Alice and Chapter measure the characteristics of the tangled particles. Ellis and Bob can then decide whether the particles attach their results in a “inequality” equality in a non -local way.

The new experiment included Alice and Bob, each was represented by a set of optical devices and detectors, but not confused photon. In fact, researchers added devices to their setups that prevent the frequency and speed of particles from confusing. And still, when the researchers put the measurement of Alice and Bob into the equation of inequality, they found that the photon was firmly connected to any local effect.

Mario Crane says at the Max Planck Institute of Light of Light in Germany, it may be because the photon contained another strange quantum property: they were born such that it was impossible to tell which photon was “born”, and their paths were not separated. In the past, the crane, MA and his colleagues used this property – which is “not to separate the path” – to overthrow the photon – called “to be separated”. However, in this case, they made sure that the quantum was a strange quality.

The team has not yet had a final theory that it can recover the results in the bell test without confusion, but the MA says many others are mainly being separated as a quantum phenomenon. Therefore, it can also be a fundamental component that is needed to produce non -local communication, even in a prescription that does not contain confusion.

Cranes and MA expect other physicists to present new alternative ideas and identify experimental flaws in their bell tests. Nevertheless, this happened with the Canonal Bell Test – about 50 years have passed between the first experiments that prove quantum theory and those where all alternative explanations were firmly rejected.

Stefano Pasani, at the University of Copenhagen in Denmark, says a problem is with the team’s “after choice” technique, where only some photon detection is considered. In his view, it is not clear whether his unprecedented photons can be scored locally on the bull test. He says that without the post -election selection, this experience will be similar to more standard scenarios where confusion is present.

Jeff Linden at the University of Ottawa in Canada says it is possible to do experiments where the bell test diagnoses light, even some lights that are not quantum, with extraordinarily strong interaction. But it “has no great implications for the universe or the nature of reality”.

In such cases, Alice and Bob are either effectively one observer, or have the opportunity to communicate and create a connection with which researchers can make mistakes for non -local impact. Linden says the new experience does not quite reject the possibility of Alice and Bob Colding. “So, it does not seem that in this experiment there are only implications that are like a violation of famous bull inequalities.”

“This is really a beautiful expansion of a very wonderful historical work on the photons confused by the 1990s,” says Efrium Steinberg at the University of Toronto, Canada. However, in his view, the new experience still has some confusion.

Going forward, the team wants to improve its devices to avoid some of these criticisms. For example, each crystal will allow researchers to prepare more photons from using later choices. “Our cooperation group has already identified many important potential defects, and this is something we look forward to in the future,” says the MA.

Titles:

Share this article

Leave a Reply

Your email address will not be published. Required fields are marked *