Quantum experiments check the power of light for communication, The team has carried out a number of experiments to gain a better understanding of quantum mechanics and to make progress in quantum networking and quantum computing that can lead to practical applications in cybersecurity and other fields.

Conventional computer “bits” are 0 or 1, but quantum bits called “cubes” can exist in the superposition of quantum states labeled 0 and 1.

This capability makes the quantum system promising to transfer, process, store and encrypt large amounts of information at an unprecedented speed. To examine photons, individual light particles that can act as cubes, the researchers used a light source, called a quantum-optic frequency comb, which contains very precisely defined wavelengths. now the new Quantum experiments check the power of light for communication.

Because they move at the speed of light and do not interact with their environment, photons are a natural platform for transmitting quantum information over long distances.

The interaction between photons is obviously difficult to challenge and control, but this skill is needed for quantum computers and efficient quantum gates, which are quantum circuits that operate in cubes.

Photonic interactions that are absent or unpredictable make the development of two-photon quantification much more difficult than with standard one-photon gates. However, in recent studies, researchers have reached several important stages where this challenge has been overcome. For example, they have adapted existing telecommunications devices in optical research to optimize them for quantum photography.

The results show a new way to use these resources for traditional and quantum communication.

The use of this equipment to manipulate quantum states is the technological basis of all these experiments, but we do not expect that by working on quantum communication we can move in another direction and improve classical communication.

Such an instrument, the frequency divider, divides the beam of light into two frequencies or bright colors.

This team member was the first researcher to successfully design a quantum frequency divider using standard lightwave communication technology.

This device simultaneously absorbs red and blue photons and then produces energy in red or blue. Using this method, the team intentionally changed the frequency of photons and directed persistent particles to beneficial interactions based on quantum interference, with photon phenomena interfering with their own trajectories.

The researchers also conducted the first demonstration of a frequency titer that divides light beams into three different frequencies, not two.

The results show that several quantum information processing operations can be carried out simultaneously without causing errors or damaging data. Another important achievement is the design of the team and the demonstration of a suitable door that photons can use to control the transfer of frequencies to other photons.

This device complements a set of universal quantifiers, which means that each quantum algorithm at this gate can be expressed as a sequence.

Applications for quantum calculations require a level of control that is far more impressive than all types of classical calculations.

The team also encodes quantum information in various independent values ​​called degrees of freedom in one photon. In this way, you can observe effects like quantum without the need for two separate particles.

Intertwining usually involves two connected particles, where changes in the state of one particle also affect the other.

Finally, the researchers conducted a quantum simulation of real physical problems. In collaboration with scientists from the Air Force Research Laboratory, they are now developing special small silicon chips similar to microelectronics to look for better photonic properties.

Theoretically, we can transfer all of these operations to a single photon chip and see great potential for conducting similar quantum experiments on this new platform. The quantum computer of the future will allow scientists to simulate very complex scientific problems that cannot be investigated by current systems, even supercomputers.

Meanwhile, the team’s results can help researchers deploy photonic systems on today’s high-performance computers.


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