Researchers have discovered a way to “translate” quantum information between different kinds of quantum technologies, with significant implications for quantum computing, communication, and networking.
The research was published in the journal Nature on Wednesday. It represents a new way to convert quantum information from the format used by quantum computers to the format needed for quantum communication.
Photons—particles of light—are essential for quantum information technologies, but different technologies use them at different frequencies. For example, some of the most common quantum computing technology is based on superconducting qubits, such as those used by tech giants Google and IBM; these qubits store quantum information in photons that move at microwave frequencies.
The researchers observed it stimulated light emission, which Einstein predicted in 1916, in single photons for the first time.
A team of researchers from the University of Basel and the University of Sydney accomplished a groundbreaking feat by demonstrating the capability to manipulate and identify small numbers of interacting packets of light energy or photons with high correlation for the first time.
The achievement, published in Nature Physics, marks a significant milestone in developing quantum technologies. The researchers observed it stimulated light emission, which Einstein predicted in 1916, in single photons for the first time.
UArizona students have developed an online game modeled after the popular ‘tangram’ puzzle game. The game is meant to help teach quantum computation concepts to people ranging from young students to researchers.
In a ground-breaking experiment, scientists have successfully created the fifth form of matter, known as the Bose-Einstein condensate (BEC), for a remarkable duration of six minutes.
This major accomplishment has the potential to revolutionize our understanding of quantum mechanics and open the door to new technological advancements. In this article, we will explore the significance of this achievement, the nature of BECs, and the potential applications of this newfound knowledge.
A quantum computer in the next decade could crack the encryption our society relies on using Shor’s Algorithm. Head to https://brilliant.org/veritasium to start your free 30-day trial, and the first 200 people get 20% off an annual premium subscription.
▀▀▀ A huge thank you to those who helped us understand this complex field and ensure we told this story accurately — Dr. Lorenz Panny, Prof. Serge Fehr, Dr. Dustin Moody, Prof. Benne de Weger, Prof. Tanja Lange, PhD candidate Jelle Vos, Gorjan Alagic, and Jack Hidary.
A huge thanks to those who helped us with the math behind Shor’s algorithm — Prof. David Elkouss, Javier Pagan Lacambra, Marc Serra Peralta, and Daniel Bedialauneta Rodriguez.
▀▀▀ References: Joseph, D., et al. (2022). Transitioning organizations to post-quantum cryptography. Nature, 605(7909), 237–243. — https://ve42.co/Joseph2022
Bernstein, D. J., & Lange, T. (2017). Post-quantum cryptography. Nature, 549(7671), 188–194. — https://ve42.co/Bernstein2017
An Insight, An Idea with Sundar Pichai — Quantum Computing, Wold Economic Forum via YouTube — https://ve42.co/QCWEFyt.
At its annual GTC event, Nvidia announced a partnership with Tel Aviv-based Quantum Machines to create a state-of-the-art architecture for quantum-classical computing.
The collaboration intends to bring about purpose-built infrastructure for quantum computing and GPU supercomputing capable of real-time quantum error correction. Known as DGX Quantum, the first system is expected to deploy to the Israel Quantum Computing Center.
A team of researchers from the Université libre de Bruxelles and the French National Center for Scientific Research have shown for the first time that an exotic type of process violating causal inequalities can be realized with known physics. A violation of a causal inequality proves under theory-independent assumptions that certain variables in an experiment cannot be assigned a definite causal order.
This is a phenomenon that has been known to be possible in theory, but widely believed impossible in practice, at least in the known regimes of physics. The new study, published in Nature Communications, shows that such processes can in fact be realized in standard quantum mechanics using variables that are delocalized in time. The finding may have far-reaching implications for our understanding of causality in physics.
The concept of causality is essential for physics and for our understanding of the world in general. Usually, we think of events as happening in a well-defined causal order. That is, they are ordered according to some time parameter, such that events in the past can influence events in the future, but not vice versa. For instance, the sunrise causes the rooster to crow, but whether the rooster crows does not have any influence on the sunrise.
Researchers at Yale have for the first time, using a process known as quantum error correction, substantially extended the lifetime of a quantum bit—a long-sought-after goal and one of the trickiest challenges in the field of quantum physics.
Led by Yale’s Michael Devoret, the experiment proves—decades after its theoretical foundations were proposed—that quantum error correction works in practice. Quantum error correction is a process designed to keep quantum information intact for a period of time longer than if the same information were stored in hardware components without any correction.
Cerebral organoids at the air-liquid interface generate nerve tracts with functional output. https://www2.mrc-lmb.cam.ac.uk/cerebral-organoids-at-the-air…al-output/ “The capacity for this model to be used to investigate the way in which neurons connect up within the brain and with the spinal cord could have important implications for our understanding of a range of diseases. In particular defects in neuronal connectivity are thought to underlie various psychiatric illnesses, including schizophrenia, autism, and depression. ”
Cerebral organoids at the air–liquid interface generate diverse nerve tracts with functional output. https://www.readcube.com/articles/10.1038/s41593-019-0350-2 “Finally, through electrophysiological and co-culture studies, we demonstrate functionality of these tracts, which are even capable of eliciting coordinated muscle contractions in co-cultured mouse spinal cord–muscle explants. This approach is likely to be a useful new tool, not only because of its ease, but also due to its util-ity in studying axon guidance, tract formation, and connectivity in a human system”
What’s Wrong With Growing Blobs of Brain Tissue? https://www.theatlantic.com/science/archive/2018/04/what-hap…ns/558881/ “The stuff we really care about in the brain, like consciousness, are emergent phenomena—they arise from the collective workings of individual neurons, which create a whole that’s greater than the sum of its parts. The problem is that we don’t know at what level these phenomena emerge. A neuron is not conscious. A person is. What about all the steps in the middle? What about 2 million neurons? 20 million? 200 million?”
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