Thursday, November 21, 2024
8.7 C
New York

Even Quantum Computers Need to Keep Their Cool, But How To Make Cool?

Quantum computers are very powerful machines and all that power produces a lot of heat. So, in order for quantum computers to work at their most efficient, researchers have built a nanoscale refrigerator that’s been designed especially to keep qubits cool. Where traditional computers have to use built-in fans to dissipate heat, quantum computers have the same requirements. The difference between the two comes down to the way in which they both deal with information. Traditional computers use bits of data that can be either a 0 or a 1, whereas quantum computers use qubits that can be both at the same time!


Another difference between traditional computers and quantum computers is that in order for qubits to run an algorithm they must first start in low-temperature ground states. Carrying out complex calculations makes the qubits heat up so running several at once or after a quick succession of one another will definitely require more than a standard fan to keep things cool. So, Mikko Mottonen and colleagues at Aalto University in Finland decided to build the world’s first standalone cooling device for quantum circuits. They did it by building a circuit with an energy gap that divided two channels. One was a superconducting fast lane, and the other was a slow resistive lane. Only those electros with enough energy to hop across the gap can join the superconductor lane. Sometimes an electron can get a boost from a nearby photon allowing it to cross lanes. As this happens the resonator in which the photon came from begins to cool.


This is exactly what happens to the electrons too. The hotter ones cross over while the cooler ones are left behind. As it takes place heat is removed from the system. Moving forward, the next step is to build a device that will cool the qubits as well and Mottonen is already in the process of applying for a patent for this, so watch this space. “Maybe in 10 to 15 years, this might be commercially useful,” he says. “It’s going to take some time, but I’m pretty sure we’ll get there.”


More News to Read

Hot this week

Brooklyn Defendants Charged in Rideshare Hacking Scheme: Jailbroken Phones Used to Exploit Uber

Brooklyn federal court has charged two defendants, Eliahou Paldiel...

Detecting Defects in Next-Generation Computer Chips: The Future of TMD-Based Semiconductors

As technology advances, the demand for smaller, more powerful...

Merging Galaxies in the Early Universe: The Birth of a Monster Galaxy

Astronomers have recently observed a fascinating event in the...

Topics

Brooklyn Defendants Charged in Rideshare Hacking Scheme: Jailbroken Phones Used to Exploit Uber

Brooklyn federal court has charged two defendants, Eliahou Paldiel...

Detecting Defects in Next-Generation Computer Chips: The Future of TMD-Based Semiconductors

As technology advances, the demand for smaller, more powerful...

Merging Galaxies in the Early Universe: The Birth of a Monster Galaxy

Astronomers have recently observed a fascinating event in the...

NASA’s Roman Space Telescope to Uncover Galactic Fossils and Dark Matter Mysteries

NASA’s Roman Space Telescope is set to transform our...

Black Myth: Wukong – A Game that Gamers Love Despite Media Backlash

In a gaming industry increasingly influenced by social agendas,...

Gravitational Waves Reveal a ‘Supercool’ Secret About the Big Bang

In 2023, physicists made a groundbreaking discovery that could...

Related Articles

Popular Categories

Send this to a friend