Unlike Bilbo’s magic ring, which entangles human hearts, engineers have created a new micro-ring that entangles individual particles of light, an important first step in a whole host of new technologies.
Entanglement – the instantaneous connection between two particles no matter their distance apart – is one of the most intriguing and promising phenomena in all of physics. Properly harnessed, entangled photons could revolutionize computing, communications, and cyber security. Though readily created in the lab and by comparatively large-scale optoelectronic components, a practical source of entangled photons that can fit onto an ordinary computer chip has been elusive.
New research, reported today in The Optical Society‘s (OSA) new high-impact journal Optica, describes how a team of scientists has developed, for the first time, a microscopic component that is small enough to fit onto a standard silicon chip that can generate a continuous supply of entangled photons.
The new design is based on an established silicon technology known as a micro-ring resonator. These resonators are actually loops that are etched onto silicon wafers that can corral and then reemit particles of light. By tailoring the design of this resonator, the researchers created a novel source of entangled photons that is incredibly small and highly efficient, making it an ideal on-chip component.
“The main advantage of our new source is that it is at the same time small, bright, and silicon based,” said Daniele Bajoni, a researcher at the Università degli Studi di Pavia in Italy and co-author on the paper. “The diameter of the ring resonator is a mere 20 microns, which is about one-tenth of the width of a human hair. Previous sources were hundreds of times larger than the one we developed.”
From Entanglement to Innovation
Scientists and engineers have long recognized the enormous practical potential of entangled photons. This curious manifestation of quantum physics, which Einstein referred to as “spooky action at a distance,” has two important implications in real-world technology.
First, if something acts on one of the entangled photons then the other one will respond to that action instantly, even if it is on the opposite side of a computer chip or even the opposite side of the Galaxy. This behavior could be harnessed to increase the power and speed of computations. The second implication is that the two photons can be considered to be, in some sense, a single entity, which would allow for new communication protocols that are immune to spying.
Read more here: Entanglement on a chip: Breakthrough promises secure communications and faster computers
The Latest on: Entanglement on a chip
[google_news title=”” keyword=”Entanglement on a chip” num_posts=”10″ blurb_length=”0″ show_thumb=”left”]
via Google News
The Latest on: Entanglement on a chip
- UCalgary professor strives toward quantum technologyon March 26, 2024 at 4:09 pm
The University of Calgary has recently partnered with PASQAL, a global leader in quantum technology. Quantum scientists study the fundamental building blocks of matter and energy. They look at ...
- Entanglement entropies of nuclear systems found to grow as the volume of those systemson March 25, 2024 at 7:05 am
Entanglement is what Einstein called "spooky action at a distance." It is a key part of what distinguishes quantum mechanics from our everyday experience. In quantum mechanics, scientists use a ...
- The world is one step closer to secure quantum communication on a global scaleon March 24, 2024 at 5:00 pm
Combining entanglement with quantum dots, a technology recognized with the Nobel Prize in Chemistry in 2023, the IQC research team aimed to optimize the process for creating entangled photons ...
- Entanglement entropies of nuclear systems grow as the volume of those systemson March 21, 2024 at 5:00 pm
Right: the partitions that occur in nuclei, where the partitions of blue and black points occupy the same regions The researchers studied entanglement entropies between the mean-field space and ...
- The mind-blowing tech that’s set to change our liveson March 21, 2024 at 5:00 pm
The mind-blowing tech that’s set to change our lives. Narrated by Jim Al-Khalili JIM AL-KHALILI: It's been almost 100 years since physicists Erwin Schrodinger and Werner Heisenb ...
- Surviving fishing gear entanglement isn’t enough for right whales – females don’t breed afterwardon March 12, 2024 at 5:00 pm
Even when entanglement does not kill a whale, it can affect individuals' ability to reproduce, which is critically important for a species with such low numbers, writes a team of scientists.
- Endangered Whale's Autopsy Reveals Possible Cause of Deathon February 13, 2024 at 2:38 am
The North Atlantic right whale was discovered on Joseph Sylvia State Beach on January 28, but the reason for its death was uncertain, despite clear injuries from entanglement with ropes.
- Physicists Enter 'New Frontier' for Quantum Computingon December 8, 2023 at 12:46 pm
the principle of superposition gives rise to the most fundamental and useful features of quantum mechanics—entanglement," Clark said. Despite being separated across the computer chip ...
- Amazon Introduces New Quantum Chip To Reduce Errorson November 28, 2023 at 10:18 am
“It's a custom-designed chip that's totally fabricated in house ... This superposition, combined with the phenomenon of entanglement, enables quantum computers to perform complex computations ...
- Quantum entanglementon September 28, 2023 at 9:38 pm
We explore the entanglement scaling of one classical of one dimensional critical wave function which is the ground state of quantum spin chain model with dynamical exponent z>1.
via Bing News