Finns create a nano-refrigerator for quantum computers

05/10/2017
Editorial staff

Finns create a nano-refrigerator for quantum computers

The device will help create efficient quantum computers that will many times surpass modern ones in performance.

Concepts
#quantum computer
#concept
#qubit
#nanotechnology

2
© Wikipedia

The next big breakthrough in electronics is likely to be quantum computers, which will increase memory and enable scientists to solve problems that our classical computers cannot cope with. A team of researchers at Aalto University in Finland may have removed one of the obstacles to building a quantum computer by developing a nano-refrigerator.

Information on a conventional computer is stored as a bit, which can be either one or zero. But in quantum computers, a unit of information – a qubit – can simultaneously take on the value of one and zero. Storing information using qubits can exponentially increase the power of a computer system.

However, before quantum computers can become a reality, scientists must reinvent all of their components. Work is underway to develop transistors, reprogrammable chips, data transmission methods, and methods for stabilizing obviously unstable quantum systems. Mikko Mottonen and Quan Yen Tan of Aalto University have made a breakthrough in bringing another common computing component into the quantum world: cooling systems.

Qubits are sensitive to heat: high temperature causes them to constantly switch between different states, which is why they are not initialized for accurate calculations.

Scientists have used the effect of quantum tunneling, in which an electron can pass through a barrier due to the fact that it functions as both a particle and a wave. In their experiment, the scientists gave the electron not enough energy to overcome the 2 nanometer-thick barrier. As a result, the electrons consumed the energy needed to complete the task from the quantum device itself, cooling the system.

To test the principle of the device, Mottonen and Tan did not use real qubits in the experiment, but a superconducting resonator that functions in a similar way. In the future, the researchers plan to switch to working with real quantum bits, set the device to a lower temperature, and speed it up and down.

Research published in the journal Nature Communications

Found a typo? Select the fragment and press Ctrl + Enter.

Concepts
#quantum computer
#concept
#qubit
#nanotechnology

Popular

Per day

During the week

Per month

Yesterday, 13:03
Maria Azarova

Scientists have proposed a new explanation for the secret of centenarians

The study of the gut microbiome by Japanese and American scientists provides one of the potential keys to longevity and the treatment of bacterial infections.

Biology
#antibiotics
#bacteria
#Longevity
#infections
#intestinal microflora
#microbiome
#old age

five hours back
Olga Ivanova

Scientists have found out what is behind the indecision of people who do not want to get vaccinated

Polish researchers have learned what the determining factor is behind people s persuasion not to get vaccinated against coronavirus infection.

Psychology
# COVID-19
#antivaccinating
#autism
#vaccination
#coronavirus

Yesterday, 21:19
Maria Azarova

Abnormal activation of the engines of the “Science” module spun the ISS by 540 degrees

Zebulon Scoville, flight director of the US National Space Agency, told how the incident with the Nauka engines turned out for the ISS.

Cosmonautics
# nasa
# International Space Station
# ISS
# MLM Science
#module

July 27
Sergey Vasiliev

In South Africa, discovered the remains of the oldest archaea on Earth

Fossils over 3.4 billion years old may be the remnants of archaeal microbes that lived and produced methane from hydrothermal vents at the bottom of the fossil sea.

Biology
#archaea
#methanogenesis
# Methanogens
#young earth

July 28th
Maria Azarova

The Federation of Cosmonautics said that “Science” has only one attempt to dock with the ISS

Alexander Khokhlov, a member of the North-West Organization of the Russian Federation of Cosmonautics, spoke about the problems accompanying the Science module on the way to the ISS, and explained why there will be only one attempt for the long-awaited docking.

Cosmonautics
# ISS
# MLM Science
#Roscosmos
#docking

26 July
Ilya Vedmedenko

Dassault Rafale “knocked out” the Russian Su-35 during the exercise

The Egyptians conducted an exercise in which a French Rafale fighter jet overpowered a Russian Su-35. Both aircraft belong to the fourth generation.

Weapons and equipment
# Rafale
# military equipment
#arms
#fighter
# Su-35

July 25th
Alexander Berezin

Elon Musk is right: no fusion is needed. The future we won t have

Before mass thermonuclear power engineering 20 years – and always will be 20 years. This simple joke itself became old 20 years ago. Society is upset that thermonuclear still cannot be brought to an industrial level. And only Elon Musk believes that a thermonuclear reactor is not needed at all. A careful analysis shows that he is right. Even if all the technical problems of thermonuclear energy are miraculously resolved, it will have no chance of ousting competitors. How did it happen, and what then will save humanity from the energy crisis?

From the point of view of science
# nuclear power
# future
#wind energy
#ITER
#solar energy
#fusion reactor
#energy
Editor s Choice

July 13
Olga Ivanova

An ancient inhabitant of a cave in the Caucasus turned out to be a carrier of the gene of the modern Western Eurasian population

An international team of scientists identified DNA from soil in a Georgian cave. Thanks to this, the researchers managed to restore the human genome 25 thousand years old, without having any skeletal remains.

Anthropology
#wolves
#Georgia
#DNA
# ancient people
#sapiens

July 8
Vasily Parfenov

Eleven-year-old child prodigy decided to become immortal and received a bachelor s degree in physics

A teenager from the Belgian city of Ostend became the second youngest holder of higher education in the foreseeable history. He graduated with honors from a physics course at the University of Antwerp and is now going to defend his master s degree, and then his doctoral dissertation in this field. His goal is simple and clear: increasing the life expectancy of a person up to complete immortality by replacing body parts and organs with mechanical or artificial ones.

Media
#Belgium
#the geeks
# higher education
# Denmark
# Guinness Book of Records
# education

[miniorange_social_login]

Comments (1)

Write a comment

Recommended Articles

Leave a Reply

Your email address will not be published.