Researchers are trying to store robust quantum information in Majorana particles and are generating quantum gates by exploiting the bizarre non-abelian statistics of Majorana zero modes bound to topological defects.
Category: computing – Page 742
Novel Error Correction Code Opens a New Approach to Universal Quantum Computing
Government agencies and universities around the world—not to mention tech giants like IBM and Google—are vying to be the first to answer a trillion-dollar quantum question : How can quantum computers reach their vast potential when they are still unable to consistently produce results that are reliable and free of errors?
Every aspect of these exotic machines—including their fragility and engineering complexity; their preposterously sterile, low-temperature operating environment; complicated mathematics; and their notoriously shy quantum bits (qubits) that flip if an operator so much as winks at them—are all potential sources of errors. It says much for the ingenuity of scientists and engineers that they have found ways to detect and correct these errors and have quantum computers working to the extent that they do: at least long enough to produce limited results before errors accumulate and quantum decoherence of the qubits kicks in.
Artificial Atoms Create Stable Qubits for Quantum Computing
Quantum engineers from UNSW Sydney have created artificial atoms in silicon chips that offer improved stability for quantum computing, according to a news release.
In a paper published today in Nature Communications, UNSW quantum computing researchers describe how they created artificial atoms in a silicon ‘quantum dot’, a tiny space in a quantum circuit where electrons are used as qubits (or quantum bits), the basic units of quantum information.
Scientia Professor Andrew Dzurak explains that unlike a real atom, an artificial atom has no nucleus, but it still has shells of electrons whizzing around the centre of the device, rather than around the atom’s nucleus.
Study finds that patterns formed by spiral galaxies show that the universe may have a defined structure
An analysis of more than 200,000 spiral galaxies has revealed unexpected links between spin directions of galaxies, and the structure formed by these links might suggest that the early universe could have been spinning, according to a Kansas State University study.
Lior Shamir, a K-State computational astronomer and computer scientist, presented the findings at the 236th American Astronomical Society meeting in June 2020. The findings are significant because the observations conflict with some previous assumptions about the large-scale structure of the universe.
Since the time of Edwin Hubble, astronomers have believed that the universe is inflating with no particular direction and that the galaxies in it are distributed with no particular cosmological structure. But Shamir’s recent observations of geometrical patterns of more than 200,000 spiral galaxies suggest that the universe could have a defined structure and that the early universe could have been spinning. Patterns in the distribution of these galaxies suggest that spiral galaxies in different parts of the universe, separated by both space and time, are related through the directions toward which they spin, according to the study.
Researchers Propose New Diamond Nanostructure For Efficient Energy Storage
One of the biggest challenges for renewable energy research is energy storage. The goal is to find a material with high energy storage capacity and energy storage material with high storage capacity that can also quickly and efficiently discharge a large amount of energy. In an attempt to overcome this hurdle, researchers at the Queensland University of Technology (QUT) have proposed a brand-new carbon nanostructure designed to store energy in mechanical form.
Most portable energy storage devices currently rely on storing energy in chemical form such as batteries, however this proposed new structure, made from a bundle of diamond nanothread (DNT) does not suffer from the same limiting properties as batteries, such as temperature sensitivity, or the potential to leak or explode. I have previously written about carbon nanotubes, and their applications in everything from Batman-like artificial muscle, to an analogy of the fictional element Vibranium, but a lot of research around carbon nanotubes is already focused on energy harvesting and energy storage applications.
What makes this energy storage method different is the method by which energy is stored, and also the related increased robustness of the resultant material. Dr Haifei Zhan and his team at the QUT Centre for material science used computer modelling to propose the structure of these ultra-thin one-dimensional carbon threads. The theory is that these threads should be able to store energy when they are twisted or stretched, similar to the way we store energy in wind-up toys. By turning the key, we force the spring inside into a tight coil. Once the key is released, the coil wishes to release the extra tension held within it and begins to unfurl. In doing so it transfers that mechanical energy into the movement of the toy’s wheels.
100-Year-Old Physics Problem Finally Solved – Accurately Predicts Transmission of Infectious Diseases
A Bristol academic has achieved a milestone in statistical/mathematical physics by solving a 100-year-old physics problem – the discrete diffusion equation in finite space.
The long-sought-after solution could be used to accurately predict encounter and transmission probability between individuals in a closed environment, without the need for time-consuming computer simulations.
In his paper, published in Physical Review X, Dr. Luca Giuggioli from the Department of Engineering Mathematics at the University of Bristol describes how to analytically calculate the probability of occupation (in discrete time and discrete space) of a diffusing particle or entity in a confined space – something that until now was only possible computationally.
‘One-way’ electronic devices enter the mainstream
Waves, whether they are light waves, sound waves, or any other kind, travel in the same manner in forward and reverse directions—this is known as the principle of reciprocity. If we could route waves in one direction only—breaking reciprocity—we could transform a number of applications important in our daily lives. Breaking reciprocity would allow us to build novel “one-way” components such as circulators and isolators that enable two-way communication, which could double the data capacity of today’s wireless networks. These components are essential to quantum computers, where one wants to read a qubit without disturbing it. They are also critical to radar systems, whether in self-driving cars or those used by the military.
A team led by Harish Krishnaswamy, professor of electrical engineering, is the first to build a high-performance non-reciprocal device on a compact chip with a performance 25 times better than previous work. Power handling is one of the most important metrics for these circulators and Krishnaswamy’s new chip can handle several watts of power, enough for cellphone transmitters that put out a watt or so of power. The new chip was the leading performer in a DARPA SPAR (Signal Processing at RF) program to miniaturize these devices and improve performance metrics. Krishnaswamy’s group was the only one to integrate these non-reciprocal devices on a compact chip and also demonstrate performance metrics that were orders of magnitude superior to prior work. The study was presented in a paper at the IEEE International Solid-State Circuits Conference in February 2020, and published May 4, 2020, in Nature Electronics.
“For these circulators to be used in practical applications, they need to be able to handle watts of power without breaking a sweat,” says Krishnaswamy, whose research focuses on developing integrated electronic technologies for new high-frequency wireless applications. “Our earlier work performed at a rate 25 times lower than this new one—our 2017 device was an exciting scientific curiosity but it was not ready for prime time. Now we’ve figured out how to build these one-way devices in a compact chip, thus enabling them to become small, low cost, and widespread. This will transform all kinds of electronic applications, from VR headsets to 5G cellular networks to quantum computers.”
Bill Faloon — If Nothing Else Kills Us, Aging Will (Longevity #005)
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SHOW NOTES TIME STAMPS:
0:00 Sneak Peak & Longevity Team Intro
2:08 Bill Faloon Intro: https://lifeextension.com & https://age-reversal.net
3:00 Life extension inspiration
3:35 Challenge death norm, …” I am not going to let that happen…”
4:39 Safety in life extension medication
4:58 Metformin Safety
6:58 “FDA is an incompetent and corrupt federal bureaucracy”
8:35 Berberine alternative for Metformin?
10:20 Metformin role in AMPK enzyme
11:30 AMPK activation in intermittent fasting?
12:00 Bill Faloon personal experience with Metformin
14:30 “…Take Care of yourself today…” by getting annual blood tests to test for lipids, glucose, etc.
15:05 Optimized sleep strategies
17:27 Insomnia
18:20 Blue light exposure graphic
18:50 Watch Brent’s interview with The Sleep Doctor, Micael Brues: https://youtube.com/watch?v=7af2AAjL4b4&t=662s
20:13 Removing anxiety strategies for better sleep
22:04 Human age reversal project clinical trial update
24:50 Exosomes — Watch Brent’s interview with Kimera Labs exosomes CEO/founder Dr. Duncan Ross: https://youtube.com/watch?v=X8eIxo3eqvQ&t=10s
26:30 IF NOTHING ELSE KILLS US, AGING WILL
27:15 Subscribe to The Church of Perpetual Life YouTube channel: https://www.youtube.com/COPL18
28:45 TAME trial for Metformin https://ncbi.nlm.nih.gov/pmc/articles/PMC5943638
29:58 Dr. Nir Barzilai
33:01 Metformin not illegal for doctors to prescribe
34:01 Intermittent fasting benefits
34:46 autophagy
35:59 Is coffee bad for telomeres?
37:01 All types of coffee containing roasted beans contain some acrylamide
37:28 Chlorophyllin to guard against acrylamide
37:55 Watch Brent’s interview with Bill Faloon https://youtube.com/watch?v=sKjHJE8x1bs
38:08 History and future of The Church Of Perpetual Life
40:20 Dr. Aubrey de Grey connected Bill Faloon with Neal Francis Vanderee to start The Church of Perpetual Life! Watch Brent’s interview with Aubrey https://youtube.com/watch?v=TquJyz7tGfk&t=365s
42:10 Religion and afterlife argument for life extension & immortality
43:35 Bill says Dr. George Church feels all viruses may just disappear in next 3–4 years and aging may be vanquished in next 10 years
44:10 Quantum Archeology “…Quantum computer technology that will ultimately be our road to physical immortality. “
45:23 Nikolai Fyodorov’s view of how “Mankind was created to find a way to achieve abundant immortality”
46:52 Why do you want to live forever?
49:01 Do the impossible!
51:00 How can all of us contribute to this life extension movement?
52:28 Why religion, immortality and living a long life are already connected
55:02 Simulation theory
55:45 Rate of how fast technology is improving
58:51 Diet food recommendations
1:00:03 Dr. Eric Berg YouTube: What Really Happens When We Fast? https://youtube.com/watch?v=vhmtoAYVRSo
1:01:42 Death anxiety
1:05:20 Bill Faloon’s influence on his kids and their work
1:09:01 Longevity benefits of having kids
1:09:48 fetal stem cells
1:11:13 Clinical trial update & where to get tested
1:13:34 Bill Faloon’s most important advice
1:15:30 Figure out your chronotype https://thepowerofwhenquiz.com
1:16:18 Brain health tips: Lithium, blueberries, CoQ10 (Ubiquinol)
1:18:55 Conclusion
World record internet speed achieved that is 1 million times faster than current broadband
Researchers in Australia have achieved a world record internet speed of 44.2 terabits per second, allowing users to download 1,000 HD movies in a single second.
A team from Monash, Swinburne and RMIT universities used a “micro-comb” optical chip containing hundreds of infrared lasers to transfer data across existing communications infrastructure in Melbourne.