Seeing all three of the photon confused at the same time

The concept of quantum confusion is a sign of the difference between classical and quantum physics. Referring to a situation in which it is impossible to describe each photon’s physics separately, this key feature of quantum mechanics denies the classic expectations that every particle should have its own reality, which is a serious concern for Einstein.

In order to understand powerful new quantum technologies, it is important to understand the ability of this concept.

The development of such technologies will require the ability to freely create a multi -photon quantum confused state, and then effectively to identify what kind of confused state is present. However, when performing traditional quantum tomography, a method that is commonly used for state estimates, the number of desired measurements increases rapidly with the number of photons, which creates a major problem in collecting data.

If available, a confused measure can identify the confused state with a shot approach. The Greenburger-Zodialer-Gug Z-Inting-based quantum estate has felt such a measure, but for the W-state, the other representative has confused the multi-photon state, neither has its proposal nor experienced.

This encouraged a team of researchers at Kyoto University and Hiroshima University to face the challenge, eventually managed to develop a new method of impatient measuring the Identity of the state. This dissertation has appeared in the journal Science development.

“After more than 25 years of a preliminary proposal related to the GHZ states, we have eventually acquired the confused measurement for the state,” says Shigki Tekuchi, a relevant author, said, “We have finally acquired confused measurements for the W -state, which has real experimental demonstrations of 3 photon W. states.”

The team focused on the characteristics of the W -State Chakro Shift Balance, and suggested a method of making a confused measurement using theoretically photoned quantum circuit that performs quantum foer changes for any kind of photon WW condition.

They created a device to demonstrate the proposed method for three photons using high stability optical quantum circuits, allowing the device to run stable without long -term active control.

By entering three single photons into the device in the appropriate polarization states, the team managed to show that the device could distinguish between a variety of photons, WW states, each is in line with a specific non -class communication between the input photon.

Researchers were able to evaluate the loyalty of confused measurements, which is likely to get the right result for the pure W -State input.

This feat opens the door for quantum teleportation, or quantum information transfer. It can also create new ways to transfer the new quantum communication protocol, the transfer of multi -photon quantum confused states, and measure -based quantum computing.

“It is very important to deepen our understanding of basic concepts to come with modern ideas, to accelerate the research and development of quantum technologies,” says Techchi.

In the future, the team aims to apply its procedures to a large, more common multi -photon quantum confused state, and plans to develop chip photon quantum circuits for confused measurements.