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Apr 19, 2023

Embracing variations: Physicists first to analyze noise in Lambda-type quantum memory

Posted by in categories: computing, particle physics, quantum physics, security

In the future, communications networks and computers will use information stored in objects governed by the microscopic laws of quantum mechanics. This capability can potentially underpin communication with greatly enhanced security and computers with unprecedented power. A vital component of these technologies will be memory devices capable of storing quantum information to be retrieved at will.

Virginia Lorenz, a professor of physics at the University of Illinois Urbana-Champaign, studies Lambda-type optical quantum , a promising technology that relies on light interacting with a large group of atoms. She is developing a device based on hot metallic vapor with graduate student Kai Shinbrough.

As the researchers work towards a practical device, they are also providing some of the first theoretical analyses of Lambda-type devices. Most recently, they reported the first variance-based sensitivity analysis describing the effects of experimental noise and imperfections in Physical Review A.

Apr 19, 2023

A light switch for neurons

Posted by in categories: biotech/medical, cyborgs, neuroscience

Ed Boyden shows how, by inserting genes for light-sensitive proteins into brain cells, he can selectively activate or de-activate specific neurons with fiber-optic implants. With this unprecedented level of control, he’s managed to cure mice of analogs of PTSD and certain forms of blindness. On the horizon: neural prosthetics. Session host Juan Enriquez leads a brief post-talk Q&A.

Apr 19, 2023

Algorithms Simulate Infinite Quantum System on Finite Quantum Computers

Posted by in categories: computing, information science, quantum physics

Year 2021 😗😁


Researchers say algorithms can simulate an infinite quantum system on finite quantum computers in interesting advance for quantum tech.

Apr 19, 2023

A First-of-Its-Kind Signal Has Been Detected in The Human Brain

Posted by in category: neuroscience

Scientists have recently identified a unique form of cell messaging occurring in the human brain that’s not been seen before.

Excitingly, the discovery hints that our brains might be even more powerful units of computation than we realized.

Back in 2020, researchers from institutes in Germany and Greece reported a mechanism in the brain’s outer cortical cells that produces a novel ‘graded’ signal all on its own, one that could provide individual neurons with another way to carry out their logical functions.

Apr 19, 2023

A New Kind of Symmetry Shakes Up Physics

Posted by in categories: particle physics, quantum physics

So-called “higher symmetries” are illuminating everything from particle decays to the behavior of complex quantum systems.

Apr 19, 2023

A Quantum Leap Through Time: Famous Double-Slit Experiment Reimagined

Posted by in categories: physics, space

Physicists have recreated the double-slit experiment in time rather than space, using materials that change their optical properties in femtoseconds. This research could lead to ultrafast optical switches and advancements in time crystals and metamaterials.

Metamaterials are engineered materials that have properties not usually found in nature.

Apr 19, 2023

Experiments show that edges are not needed to realize an unusual quantum effect

Posted by in categories: materials, quantum physics

RIKEN physicists have created an exotic quantum state in a device with a disk-like geometry for the first time, showing that edges are not required. This demonstration opens the way for realizing other novel electronic behavior. Their findings are published in Nature Physics.

Physics has long moved on from the three classic states of matter: solid, liquid and gas. A better theoretical understanding of quantum effects in crystals and the development of advanced experimental tools to probe and measure them has revealed a whole host of exotic states of matter.

A prominent example of this is the : a kind of crystalline solid that exhibits wildly different properties on their surfaces than in the rest of the material. The best-known manifestation of this is that conduct electricity on their surfaces but are insulating in their interiors.

Apr 19, 2023

Codename Athena: Microsoft developing secret AI chips to challenge Nvidia’s dominance

Posted by in category: robotics/AI

Microsoft has been secretly developing the chips since 2019.

Microsoft is reportedly working on its own AI chips to train complex language models. The move is thought to be intended to free the corporation from reliance on Nvidia chips, which are in high demand.

Select Microsoft and OpenAI staff members have been granted access to the chips to verify their functionality, The Information reported on Tuesday.

Apr 19, 2023

Fullpath Launches ChatGPT-4 AI Tool For Auto Dealers, Customers

Posted by in categories: robotics/AI, transportation

ChatGPT, The artificial intelligence tool being used to kickstart brains, and in some cases, standing in for real ones, has reached automotive showrooms to assist shoppers in their searches and dealers in managing their customers.

Apr 19, 2023

Billionaire Li Ka-Shing Backs Biocomputing Startup That Takes On AI With Lab-Grown Brain Cells

Posted by in categories: biotech/medical, finance, robotics/AI

Cortical Labs, an Australian startup developing a new type of artificial intelligence that combines lab-grown human brain cells with computer chips, has raised $10 million in a funding round led by Horizons Ventures, the private investment arm of Hong Kong’s richest person, Li Ka-shing.

Blackbird Ventures, Australia’s leading venture capital fund, has also taken part in the financing round, Cortical Labs said in a statement on Wednesday. Other investors include In-Q-Tel, the venture capital arm of the Central Intelligence Agency, as well as U.S.-based LifeX Ventures and Australia-headquartered Radar Ventures, among others.

Cortical Labs said it will use the capital to commercialize its biological computer chips—human brain cells derived from stem cells that are grown on top of microelectrode arrays. Cortical Labs refers to their system as DishBrain, and says it’s capable of performing goal-directed tasks.