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Category: computing – Page 534

Circa 2012

Quantum ground-state problems are computationally hard problems for general many-body Hamiltonians; there is no classical or quantum algorithm known to be able to solve them efficiently. Nevertheless, if a trial wavefunction approximating the ground state is available, as often happens for many problems in physics and chemistry, a quantum computer could employ this trial wavefunction to project the ground state by means of the phase estimation algorithm (PEA). We performed an experimental realization of this idea by implementing a variational-wavefunction approach to solve the ground-state problem of the Heisenberg spin model with an NMR quantum simulator. Our iterative phase estimation procedure yields a high accuracy for the eigenenergies (to the 10–5 decimal digit).

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The patent in question is for a system that would use quantum teleportation in order to boost a quantum computer’s reliability, while at the same time reducing the number of qubits required for a given calculation. This “teleportation” technology would help solve scaling issues and calculation errors that arise from system instability.

One of the main issues behind quantum development is once you start pushing the pedal to the metal, there are major issues when it comes to scalability and stability. Quantum computing is far different to the 0s and 1s of traditional technology, so AMD’s new teleportation patent is quite an important step towards solving that issue.

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Circa 2006

MIT researchers are putting a tiny gas-turbine engine inside a silicon chip about the size of a quarter. The resulting device could run 10 times longer than a battery of the same weight can, powering laptops, cell phones, radios and other electronic devices.

It could also dramatically lighten the load for people who can’t connect to a power grid, including soldiers who now must carry many pounds of batteries for a three-day mission — all at a reasonable price.

The researchers say that in the long term, mass-production could bring the per-unit cost of power from close to that for power from today’s large gas-turbine power plants.

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Isaac Nape, an emerging South African talent in the study of quantum optics, is part of a crack team of Wits physicists who led an international study that revealed the hidden structures of quantum entangled states. The study was published in the renowned scientific journal, Nature Communications, on Friday, 27 August 2021.

Nape is pursuing his Ph.D. at Wits University and focuses on harnessing structured for high dimensional information encoding and decoding for use in .

Earlier this year he scooped up two awards at the South African Institute of Physics (SAIP) conference to add to his growing collection of accolades in the field of optics and photonics. He won the award for “Best Ph.D. oral presentation in applied physics,” and jointly won the award for “Best Ph.D. oral presentation in photonics.”

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The price of chips and devices is on track to rise into 2022 as the world’s biggest contract chipmakers are ramping up productions fees.

A new report indicates that the price of chips and devices, in general, are on track to rise into 2022 as the world’s biggest contract chipmakers are ramping up productions fees, which could end up impacting Apple and its chipmaker TSMC.

According to a story from Nikkei Asia, TSMC, which makes chips for Apple, Nvidia, and Qualcomm, always had production fees around 20% higher than its rival. But with the semiconductor shortage, some of its competitors already charge more than TSMC.

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Quantum Machines, an Israeli startup that is building the classical hardware and software infrastructure to help run quantum machines, announced a $50 million Series B investment today.

Today’s round was led by Red Dot Capital Partners with help from Exor, Claridge Israel, Samsung NEXT, Valor Equity Partners, Atreides Management, LP, as well as TLV Partners, Battery Ventures, 2i Ventures and other existing investors. The company has now raised approximately $83 million, according to Crunchbase data.

While quantum computing in general is in its early days, Quantum Machines has developed a nice niche by building a hardware and software system, what they call The Quantum Orchestration Platform, that helps run the burgeoning quantum machines, leaving it plenty of room to grow as the industry develops.

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