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Archive for the ‘computing’ category: Page 228

Jul 3, 2023

Unraveling a Quantum Enigma: How Tantalum Enhances Qubit Performance

Posted by in categories: chemistry, computing, nanotechnology, quantum physics

Whether it’s baking a cake, constructing a building, or creating a quantum device, the caliber of the finished product is greatly influenced by the components or fundamental materials used. In their pursuit to enhance the performance of superconducting qubits, which form the bedrock of quantum computers, scientists have been probing different foundational materials aiming to extend the coherent lifetimes of these qubits.

Coherence time serves as a metric to determine the duration a qubit can preserve quantum data, making it a key performance indicator. A recent revelation by researchers showed that the use of tantalum in superconducting qubits enhances their functionality. However, the underlying reasons remained unknown – until now.

Scientists from the Center for Functional Nanomaterials (CFN), the National Synchrotron Light Source II (NSLS-II), the Co-design Center for Quantum Advantage (C2QA), and Princeton University investigated the fundamental reasons that these qubits perform better by decoding the chemical profile of tantalum.

Jul 3, 2023

How to stop quantum computers from breaking the internet’s encryption

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

Today’s encryption schemes will be vulnerable to future quantum computers, but new algorithms and a quantum internet could help.

Jul 3, 2023

AI and Humanity’s Future

Posted by in categories: augmented reality, automation, big data, computing, disruptive technology, evolution, futurism, innovation, internet, machine learning, robotics/AI, singularity, supercomputing, transhumanism

The concept of a computational consciousness and the potential impact it may have on humanity is a topic of ongoing debate and speculation. While Artificial Intelligence (AI) has made significant advancements in recent years, we have not yet achieved a true computational consciousness that can replicate the complexities of the human mind.

It is true that AI technologies are becoming more sophisticated and capable of performing tasks that were previously exclusive to human intelligence. However, there are fundamental differences between Artificial Intelligence and human consciousness. Human consciousness is not solely based on computation; it encompasses emotions, subjective experiences, self-awareness, and other aspects that are not yet fully understood or replicated in machines.

The arrival of advanced AI systems could certainly have transformative effects on society and our understanding of humanity. It may reshape various aspects of our lives, from how we work and communicate to how we approach healthcare and scientific discoveries. AI can enhance our capabilities and provide valuable tools for solving complex problems.

However, it is important to consider the ethical implications and potential risks associated with the development of AI. Ensuring that AI systems are developed and deployed responsibly, with a focus on fairness, transparency, and accountability, is crucial.

Continue reading “AI and Humanity's Future” »

Jul 2, 2023

These ‘chip-scale’ atomic clocks extend precise timing beyond GPS limits

Posted by in category: computing

R. Jacobson/NIST

However, traditional atomic clocks are bulky, exhibit frequent instabilities due to various environmental factors, and require calibration. Due to these limitations, technological advancements and the miniaturization of atomic clocks are ongoing to make them more accessible and practical for various applications.

Jul 2, 2023

Pioneering Quantum Simulations on Photonic Chips: A New Era in Quantum Computing

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

A system using photonics-based synthetic dimensions could be used to help explain complex natural phenomena.

Researchers at the University of Rochester have developed a chip-scale optical quantum simulation system using controlled photon.

A photon is a particle of light. It is the basic unit of light and other electromagnetic radiation, and is responsible for the electromagnetic force, one of the four fundamental forces of nature. Photons have no mass, but they do have energy and momentum. They travel at the speed of light in a vacuum, and can have different wavelengths, which correspond to different colors of light. Photons can also have different energies, which correspond to different frequencies of light.

Jul 2, 2023

We’re on the brink of the biggest changes to computing’s DNA and it’s not just quantum that’s coming

Posted by in categories: biotech/medical, computing, mathematics, quantum physics

Computers are built around logic: performing mathematical operations using circuits. Logic is built around things such as Adders—not the snake; the basic circuit that adds together two numbers. This is as true of today’s microprocessors as all those going back to the very beginning of computing history. You could go back to an abacus and find that, at some fundamental level, it does the same thing as your shiny gaming PC. It’s just much, much less capable.

Nowadays, processors can do a lot of mathematical calculations using any number of complex circuits in a single clock. And a lot more than just add two numbers together, too. But to get to your shiny new gaming CPU, there has been a process of iterating on the classical computers that came before, going back centuries.

Jul 2, 2023

Comprehensive Overview of Progress Achieved in the Field of Quantum Teleportation

Posted by in categories: computing, quantum physics

A team led by Academician Prof. Guangcan Guo from the Chinese Academy of Sciences (CAS) provides a comprehensive overview of the progress achieved in the field of quantum teleportation. The team, which includes Prof. Xiaomin Hu, Prof. Yu Guo, Prof. Biheng Liu, and Prof. Chuanfeng Li from the University of Science and Technology of China (USTC), CAS, was invited to publish a review paper on quantum teleportation in the peer-reviewed scientific journal Nature Review Physics. The paper was officially released online on May 24.

As one of the most important protocols in the field of quantum information, quantum teleportation has attracted great attention since it was proposed in 1993. Through entanglement distribution and Bell-state measurement, quantum teleportation enables the nonlocal transmission of an unknown quantum state, which has deepened the understanding of quantum entanglement. More importantly, quantum teleportation can effectively overcome the distance limitation of direct transmission of quantum states in quantum communication, as well as realize long-range interactions between different quantum bits in quantum computing.

Performing computation using quantum-mechanical phenomena such as superposition and entanglement.

Jul 2, 2023

Asus Flaunts GeForce RTX 4060 Ti with M.2 Slots for SSDs

Posted by in categories: computing, electronics

Asus weds graphics card with an M.2 SSD expander card.

Jun 30, 2023

Change this Android setting to instantly give your phone twice the speed

Posted by in categories: computing, mobile phones

One tip that I always give to family members, friends, and passersby when asked, “How can I make my phone faster?” is straightforward yet typically hidden, and that’s adjusting the animation speed. The method of doing so is quick, simple, and absolutely free. And as a bonus, you’ll feel like the “guy behind the computer” from every action movie. Just follow the steps below.


A few taps and a swipe are all it takes to make your Android phone feel like new again.

Continue reading “Change this Android setting to instantly give your phone twice the speed” »

Jun 30, 2023

Engineers develop first-of-its-kind integrated optical isolator

Posted by in categories: computing, quantum physics

An optical isolator developed at the Harvard John A. Paulson School of Engineering and Applied Sciences (SEAS) could drastically improve optical systems for many practical applications.

All —used for telecommunications, microscopy, imaging, quantum photonics, and more—rely on a laser to generate photons and . To prevent those lasers from damage and instability, these systems also require isolators, components that prevent light from traveling in undesired directions. Isolators also help cut down on signal noise by preventing light from bouncing around unfettered. But conventional isolators have been relatively bulky in size and require more than one type of material to be joined together, creating a roadblock to achieving enhanced performance.

Now, a team of researchers led by electrical engineer Marko Lončar at SEAS has developed a method for building a highly-efficient integrated isolator that’s seamlessly incorporated into an made of lithium niobate. Their findings are reported in Nature Photonics.