Connect with us
US scientists have developed a quick test for quantum superiority US scientists have developed a quick test for quantum superiority

News

US scientists have developed a quick test for “quantum superiority”

Published

on

Scientists from the University of California at Berkeley (USA) have developed a super-complicated problem for a quantum computer, the correctness of the calculation of which can be easily checked using a conventional PC. It can be used to objectively test claims of “quantum superiority,” the scientists write in a paper published in the journal Nature Physics.

US scientists have developed a quick test for

We have developed an interactive protocol that allows us to demonstrate “quantum superiority” or to verify this claim without significant expenditure of resources of classical computers. Our approach is based on the use of cryptographic functions with hard-to-detect teeth in combination with quantum Bell’s inequalities‘, the researchers explained.

In the fall of 2019, a group of scientists from the Quantum Artificial Intelligence Lab at Google announced the achievement of the so-called “quantum supremacy”. They managed to solve the “unsolvable” problem of generating random numbers using the Sycamore computer created by Google, which contains 53 superconducting quantum bits (qubits).

Subsequently, the achievement of “quantum superiority” was immediately announced by two teams of physicists from China, who managed to solve super-complex mathematical problems using superconducting and photonic quantum machines. These advances have sparked debate about whether solving such problems is truly “quantum supremacy” and has also led scientists to think about how to test the correct operation of these computers.

A group of American physicists led by Norman Yao, an assistant professor at the University of California at Berkeley, has developed an unorthodox approach to objectively demonstrate “quantum superiority” or verify such claims with minimal effort. The idea is based on the application of quantum physics to cryptographic algorithms.

As physicists, mathematicians and developers of cryptographic equipment and applications explain, so-called secret functions with hard-to-detect teeth are often used to encrypt data. So scientists call mathematical expressions that, presumably, cannot be reversed and thus find the key to the encoded information.

Yao and his colleagues found that one of the most difficult parts of these mathematical algorithms, which provide reliable information security, can be replaced by Bell’s physical equations, which are the fundamental basis of quantum mechanics. This allows similar calculations to be performed on a quantum computer and used to demonstrate “quantum supremacy”.

To do this, scientists have created a test system that sends a set of data to a quantum computer, which it uses to calculate cryptographic functions. The results of these calculations are very quickly verified using a conventional computer, the successful completion of which both confirms the quantum nature of the calculations on the machine under study, and also serves as an objective confirmation of “quantum superiority,” summed up Yao and his colleagues.

Click to comment

Leave a Reply

Your email address will not be published.

News

Samsung is spending more on R&D…or less? It all depends on how you count.

Published

on

Samsung is spending more on RDor less It all depends

Samsung Electronics’ R&D spending for the first half of this year amounted to $9.19 billion compared to $8.3 billion a year earlier.

Samsung is spending more on R&D...or less?  It all depends on how you count.

Despite this, the investment-to-revenue ratio fell to 7.9%. Moreover, the figure has been steadily declining since 2021. Before that, it was actively growing, increasing from 7.4% in 2018 to 9.8% in 2020.

During the same period, Samsung’s investments in factories and facilities amounted to $15.2 billion, with about 80% of this amount spent on everything related to the company’s semiconductor business, which has been Samsung’s most important in recent years. At the same time, these investments are $2.5 billion less than what the company invested in its facilities in the first half of 2021.

Continue Reading

Electric Cars

The Americans installed the most powerful launch vehicle in the world at the moment on the launch pad. SLS is due to make its first flight on August 29

Published

on

The Americans installed the most powerful launch vehicle in the

NASA has placed SLS rockets on the launch pad for launch as part of the Artemis 1 mission.

The Americans installed the most powerful launch vehicle in the world at the moment on the launch pad.  SLS is due to make its first flight on August 29

The launch is scheduled for August 29th. The Artemis 1 mission involves testing the Orion spacecraft and launching it to the moon. The mission will last from 39 to 42 days. Among other things, one of the most important moments of the mission will be the return of the ship to Earth. Orion will not just return, but will enter the upper atmosphere twice. The first entry will be partial with a further return to a higher orbit, after which a full re-entry and landing will follow. Thus, NASA will test the ship for strength.

As for the rocket, once launched, the SLS will be the most powerful rocket currently in use. It is capable of launching up to 95 tons of cargo into the reference orbit, and in the future, after modifications, the figure can be increased to 130 tons. It is capable of delivering 27 tons to the moon.

NASA expects that the upcoming launch will attract a huge number of people to the beach near the spaceport. Cocoa Beach city officials estimate that between 100,000 and 200,000 people will come to watch the launch.

Continue Reading

News

Starship has never flown before, but SpaceX already has a contract to launch a satellite with this rocket.

Published

on

Starship has never flown before but SpaceX already has a

SpaceX has won one of its first Starship launch contracts. Despite the fact that she has not yet had a single full-fledged launch, the mission in question is scheduled for 2024.

Starship has never flown before, but SpaceX already has a contract to launch a satellite with this rocket.

Japanese company SKY Perfect JSAT Holdings has chosen Starship to launch its Superbird-9 communications satellite into geosynchronous transfer orbit.

There is no other data on cooperation with SpaceX in the corresponding press release. Including the unknown amount of the contract. As for the satellite, we are talking about the HTS class (High Throughput Satellites) – these are communication satellites with high bandwidth. The company says that the satellite configuration can be flexibly adjusted to the needs of a particular customer.

Continue Reading

Most Popular