chanelink logo
CHANELINK
Nederlands

Scientists have made breakthrough progress in using laser to cool sound waves

390
2024-01-22 15:17:11
Bekijk vertaling

A group of researchers from the Max Planck Institute of Optoelectronics has made a significant breakthrough in using laser cooling to travel sound waves. This development brings us one step closer to the quantum ground state of sound in waveguides, which is of great significance for quantum communication systems and future quantum technology.

By using laser cooling, scientists can significantly reduce the temperature of sound waves in optical fibers. They achieved a significant reduction of 219K, ten times higher than previously reported. In the end, they managed to reduce the initial number of phonons by 75% at a temperature of 74 K.

The key to this success lies in utilizing stimulated Brillouin scattering, a nonlinear optical effect that can effectively couple light waves to sound waves. Laser is used to cool acoustic vibrations, creating an environment with minimal thermal noise. This decrease in temperature has a significant impact on quantum systems, as thermal noise can hinder the functionality of quantum communication systems.

A significant advantage of using glass fibers is that they can conduct light and sound over long distances while maintaining strong interactions. During the experiment, researchers used a 50 centimeter long optical fiber to cool the sound wave that extended its entire length. Considering that most of the platforms previously brought to the quantum ground state were microscopic in size, this is remarkable.

The realization of cooling sound waves to such low temperatures has opened up new experimental fields, allowing for a deeper understanding of the fundamental properties of matter. In addition, due to the broadband and continuous existence of sound waves in waveguide systems, these advancements are of great significance for high-speed communication systems.

"We are very enthusiastic about the new insights that pushing these fibers into quantum ground states will bring," said Dr. Birgit Stiller, head of the Quantum Photoacoustics group. Not only from the perspective of basic research, it enables us to glimpse the quantum properties of extended objects, but also because it may have applications in quantum communication schemes and future quantum technologies.

In summary, the breakthrough made by researchers at the Max Planck Institute in utilizing laser cooling of sound waves has brought us closer to achieving the quantum ground state of sound. This development is of great significance to quantum communication systems and opens up new possibilities for future quantum technology.

Source: Laser Net

Gerelateerde aanbevelingen

  • Laser technology reveals hidden gases in complex mixtures

    Laser Network reported on January 11th that modern equipment has been fine tuned to detect highly specific gases, including trace gases found in the atmosphere, gases present in combustion exhaust emissions, and gases used in technology plasma applications.They achieve this by calculating the percentage of light at a certain wavelength that is absorbed or attenuated by the sample. This way, the co...

    2024-01-11
    Bekijk vertaling

  • The world's first scalable optical quantum computer prototype has been launched

    Canada's Xanadu Quantum Technologies has developed the world's first scalable optical quantum computer prototype. The company published an article in the latest issue of Nature detailing its design and construction process, and demonstrating how the prototype can be flexibly scaled up to the required scale. This breakthrough lays an important foundation for the development of large-scale quantum c...

    02-12
    Bekijk vertaling

  • New discoveries bring progress in photon calculation

    International researchers led by Philip Walther from the University of Vienna have made significant breakthroughs in the field of quantum technology, successfully demonstrating quantum interference between multiple single photons using a new resource-saving platform. This work, published in Science Advances, represents a significant advancement in the field of quantum computing and paves the way f...

    2024-04-27
    Bekijk vertaling

  • Researchers use blurry light to 3D print high-quality optical components

    Canadian researchers have developed a new 3D printing method called Blur Tomography, which can quickly produce micro lenses with commercial grade optical quality. The new method can make designing and manufacturing various optical devices easier and faster.Daniel Webber from the National Research Council of Canada stated, "We have intentionally added optical blurring to the beams used in this 3D p...

    2024-05-11
    Bekijk vertaling

  • BluGlass successfully raised $5.87 million to accelerate GaN laser production and delivery

    Recently, BluGlass, a leading global semiconductor development company, successfully completed its stock purchase plan (SPP) and raised $5.87 million in funds (excluding costs). This SPP provides eligible shareholders with the opportunity to subscribe to up to $100000 in new shares of BluGlass at a discounted price of $0.037 per share, along with free additional options. This initiative has gained...

    2024-04-12
    Bekijk vertaling