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Archive for the ‘computing’ category: Page 553

Jun 2, 2019

Smart pedestrian crossing system forgoes buttons for cameras

Posted by in categories: computing, electronics

Starting at the end of next year, some of Vienna’s walk-light push-buttons will be disappearing from the city’s pedestrian crossings. Instead, a new system will be trialled, that uses cameras and computers to visually detect when people wish to cross the road.

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Jun 2, 2019

D-Wave previews quantum computing platform with over 5,000 qubits

Posted by in categories: computing, quantum physics

D-Wave Systems today unveiled the roadmap for its 5,000-qubit quantum computer. Components of D-Wave’s next-generation quantum computing platform will come to market between now and mid-2020 via ongoing quantum processing unit (QPU) and cloud-delivered software updates. The complete system will be available through cloud access and for on-premise installation in mid-2020.

Binary digits (bits) are the basic units of information in classical computing while quantum bits (qubits) make up quantum computing. Bits are always in a state of 0 or 1, while qubits can be in a state of 0, 1, or a superposition of the two. Quantum computing leverages qubits to perform computations that would be much more difficult for a classical computer. Based in Burnaby, Canada, D-Wave has been developing its own quantum computers that use quantum annealing.

D-Wave is mainly focused on solving optimization problems, so its quantum computers can’t be directly compared to the competition. Indeed, many have questioned whether D-Wave’s systems have quantum properties, and thus performance that classical computers can’t match. In the meantime, D-Wave continues to improve and sell its systems.

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Jun 1, 2019

For The First Time Ever, Scientists Observe The Complex Messaging System of Cells

Posted by in categories: computing, employment, nanotechnology

The way information travels inside the cells of our bodies is not unlike the wiring inside a computer chip, according to a new study that has unveiled the intricate workings of a network of calcium ions as intracellular messengers.

According to researchers from the University of Edinburgh in the UK, this “cell-wide web” uses a microscopic network of guides to transmit information across nanoscale distances and carry activities and instructions for the cells to perform — such as relaxing or contracting muscles, for example.

Calcium ions (Ca2+) are a fundamental part of the messaging system of our cells, and their signals are crucial for a wide variety of jobs, including cell growth, death, and movement. Now researchers have taken an unprecedented close look at just how calcium ions shuttle messages within the cell.

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Jun 1, 2019

I wanted to have a long running post where i will be tracking serious papers about time travel

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

Also, loosely following technology that could be used to build a real working time machine. Anyone with an interest in time travel is welcome to participate.

But, I have been watching tech news for what could be used to build a time machine. I think we are pretty close. You’d still need a few physics guys with 150+ IQ’s to work on the equations, a guy with a 200+ IQ to figure out how to put the whole thing together, and a guy with billions of dollars to fund it. But most of this stuff is for sale to the public, (short list):

1. quantum computer; to run the calculations.

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May 31, 2019

NASA Invites Public to Submit Names to Fly Aboard Next Mars Rover

Posted by in categories: computing, space

From now till Sept. 30, the public can submit names to be stenciled on microchips that will fly on the Mars 2020 rover and receive a souvenir boarding pass.

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May 31, 2019

Quantum gate teleportation between separated qubits in a trapped-ion processor

Posted by in categories: computing, quantum physics

Gating—controlling the state of one qubit conditioned on the state of another—is a key procedure in all quantum information processors. As the scale of quantum processors increases, the qubits will need to interact over larger and larger distances, which presents an experimental challenge in solid-state architectures. Wan et al. implemented the 20-year-old theoretical proposal of quantum gate teleportation that allows separated qubits to interact effectively. They deterministically teleported a controlled-NOT gate between two computational qubits in spatially separated zones in a segmented ion trap, demonstrating a feasible route toward scalable quantum information processors.

Science, this issue p. 875

Large-scale quantum computers will require quantum gate operations between widely separated qubits. A method for implementing such operations, known as quantum gate teleportation (QGT), requires only local operations, classical communication, and shared entanglement. We demonstrate QGT in a scalable architecture by deterministically teleporting a controlled-NOT (CNOT) gate between two qubits in spatially separated locations in an ion trap. The entanglement fidelity of our teleported CNOT is in the interval (0.845, 0.872) at the 95% confidence level. The implementation combines ion shuttling with individually addressed single-qubit rotations and detections, same- and mixed-species two-qubit gates, and real-time conditional operations, thereby demonstrating essential tools for scaling trapped-ion quantum computers combined in a single device.

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May 31, 2019

How to store data error-free for millions of years

Posted by in categories: biotech/medical, computing

Circa 2015


ETH researchers have found an error-free way to store information in the form of DNA, potentially preserving it for millions of years: encapsulate the information-bearing segments of DNA in silica (glass), using an error-correcting information-encoding scheme.

Scrolls thousands of years old provide us with a glimpse into long-forgotten cultures and the knowledge of our ancestors. In this digital era, in contrast, a large part of our knowledge is located on servers and hard drives, which may not survive 50 years, let alone thousands of years. So researchers are searching for new ways to store large volumes of data over the long term.

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May 31, 2019

Physicists measure how long graphene qubits hover in “alive/dead” superposition

Posted by in categories: computing, quantum physics

Practical quantum computers may be another step closer to reality – and like so many technologies, we have graphene to thank for it. The bits of information in quantum computers (qubits) can famously exist in two states at once, and now researchers from MIT and other institutions have managed to record just how long that superposition state can last in a qubit made of graphene.

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May 31, 2019

How a quantum computer could break 2048-bit RSA encryption in 8 hours

Posted by in categories: computing, encryption, quantum physics

A new study shows that quantum technology will catch up with today’s encryption standards much sooner than expected. That should worry anybody who needs to store data securely for 25 years or so.

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May 29, 2019

Soon ‘noise-cancelling headphones’ for quantum computers

Posted by in categories: computing, quantum physics

Quantum computers encode information in delicate superposition states of quantum bits, or ‘qubits’.

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