How much does it cost to build a quantum computer?

By most estimates, a single qubit costs around $10K and needs to be supported by a host of microwave controller electronics, coaxial cabling and other materials that require large controlled rooms in order to function. In hardware alone, a useful quantum computer costs tens of billions of dollars to build.

Can you build a quantum computer at home?

Note that while you probably can’t build a quantum computer at home, you can simulate one with a classical computer, at the cost of merely an exponential slowdown.

How do you build a quantum computer?

How hard is it to build a quantum computer?

Quantum computers are exceedingly difficult to engineer, build and program. As a result, they are crippled by errors in the form of noise, faults and loss of quantum coherence, which is crucial to their operation and yet falls apart before any nontrivial program has a chance to run to completion.

Can I buy a quantum computer?

So, even they do exist, unless you have a few million dollars you don’t need, you won’t be able to buy a quantum computer today. At the same time, quantum computing is one of the most promising technologies. It is a technology you may want to start learning today rather than tomorrow.

What is the most powerful quantum computer in the world?

the Eagle
IBM has unveiled the Eagle, the world’s most powerful quantum processor. Boasting 127 quantum bits (qubits), the Eagle is a major step towards commercial quantum computers outperforming traditional machines.

What is the problem with quantum computer?

Current quantum computers typically suppress decoherence by isolating the qubits from their environment as well as possible. The trouble is, as the number of qubits multiplies, this isolation becomes extremely hard to maintain: Decoherence is bound to happen, and errors creep in.