Danish Researchers Break the Limits of the Internet
A team of Danish physicists has taken a crucial step towards an Internet that is faster and more secure than what we know today. The researchers from the Niels Bohr Institute at the University of Copenhagen have created an atomic memory that, in time, will be able to break the limits for Internet communication. The team’s breakthrough was published in the prominent journal, Nature, on 25 November 2004.
From Internet to Quantum Internet
The Internet is getting faster and faster – something which we all take for granted. However, communication on the Internet takes place via tiny pulses of light that are constantly becoming weaker as the network handles the increasing flow of information. Soon, we will reach the limit for how weak the pulses can be and still be able to function as information carriers. When that happens, we will have reached the limit for the Internet as we know it today.
But this is not a limit that can stop these Danish physicists. A new type of Internet, a so-called Quantum Internet, where information is encoded in quantum properties of tiny pulses, opens up completely new possibilities. In order for the new network to function in practice, it is first necessary to create new ways to detect and store light information in atoms, a so-called quantum memory. And that is exactly what the researchers have created.
Groundbreaking quantum mechanics
In addition to opening the door to new types of communication, the researcher’s achievement resonates in basic research circles. For atomic memory is a huge leap forward for that type of researcher, especially in the area that deals with phenomena at the atomic level, so-called quantum information.
Behind this quantum-mechanic breakthrough is Eugene Polzik, professor, Brian Julsgaard, assistant research professor, and Jacob Sherson, PhD student. The three physicists achieved the groundbreaking results at the Danish National Research Foundation Center for Quantum Optics at the Niels Bohr Institute. The work has been carried out in cooperation with researchers from the Czeck Republic and Germany as well.
Prof. Eugene Polzik | alfa
The most recent press releases about innovation >>>
Die letzten 5 Focus-News des innovations-reports im Überblick:
Mapping the interaction of a single atom with a single photon may inform design of quantum devices
Have you ever wondered how you see the world? Vision is about photons of light, which are packets of energy, interacting with the atoms or molecules in what...
A multi-institutional research collaboration has created a novel approach for fabricating three-dimensional micro-optics through the shape-defined formation of porous silicon (PSi), with broad impacts in integrated optoelectronics, imaging, and photovoltaics.
Working with colleagues at Stanford and The Dow Chemical Company, researchers at the University of Illinois at Urbana-Champaign fabricated 3-D birefringent...
In experiments with magnetic atoms conducted at extremely low temperatures, scientists have demonstrated a unique phase of matter: The atoms form a new type of quantum liquid or quantum droplet state. These so called quantum droplets may preserve their form in absence of external confinement because of quantum effects. The joint team of experimental physicists from Innsbruck and theoretical physicists from Hannover report on their findings in the journal Physical Review X.
“Our Quantum droplets are in the gas phase but they still drop like a rock,” explains experimental physicist Francesca Ferlaino when talking about the...
The Max Planck Institute for Physics (MPP) is opening up a new research field. A workshop from November 21 - 22, 2016 will mark the start of activities for an innovative axion experiment. Axions are still only purely hypothetical particles. Their detection could solve two fundamental problems in particle physics: What dark matter consists of and why it has not yet been possible to directly observe a CP violation for the strong interaction.
The “MADMAX” project is the MPP’s commitment to axion research. Axions are so far only a theoretical prediction and are difficult to detect: on the one hand,...
Broadband rotational spectroscopy unravels structural reshaping of isolated molecules in the gas phase to accommodate water
In two recent publications in the Journal of Chemical Physics and in the Journal of Physical Chemistry Letters, researchers around Melanie Schnell from the Max...