Room Temperature Quantum Computing on a Desktop

Not seeing how this is done exactly, but it appears quite a jump forward, more at the link.   Claims to be able to achieve about 50 Qubits.  

Quantum computing hits the desktop, no cryo-cooling required,  By Loz Blain  in NewAtlas.com

An Australian/German company is developing powerful quantum accelerators the size of graphics cards. They work at room temperature, undercutting and outperforming today's huge, cryo-cooled quantum supercomputers, and soon they'll be small enough for mobile devices.

Superconducting quantum computers are huge and incredibly finicky machines at this point. They need to be isolated from anything that might knock an electron's spin off and ruin a calculation. That includes mechanical isolation, in extreme vacuum chambers, where only a few molecules might remain in a cubic meter or two of space. It includes electromagnetic forces – IBM, for example, surrounds its precious quantum bits, or qubits, with mu metals to absorb all magnetic fields.

And it includes temperature. Any atom with a temperature above absolute zero is by definition in a state of vibration, and any temperature more than 10-15 thousandths of a degree above absolute zero simply shakes the qubits to the point where they can't maintain "coherence." So most state-of-the-art quantum computers need to be cryogenically cooled using complex and expensive equipment before the qubits will maintain their state for any length of time and become useful.... ' 

" ... The company has already built a number of "Quantum development kits" in rack units, each with around 5 qubits to work with, and it's placing them with customers already, for benchmarking, integration, co-design opportunities and to let companies start working out where they'll be advantageous once they hit the market in a ~50-qubit "Quantum Accelerator" product form by around 2025. "We think over a decade," says Luo, "we can even produce a quantum system-on-a-chip for mobile devices. Because this is truly material science technology that can achieve that."  ...  "