Overview: Today's high-performance cloud simulators surpass previous limits in handling qubits and accurately replicate complex quantum systems. Community-

One huge issue Rigetti is facing right now is that as the number of qubits in the system increases, its accuracy quickly declines. Its largest 108-qubit system only has a 99% two-qubit gate accuracy. Seeing accuracy decline as computing power increases isn't a good sign, and Rigetti has a lot of work to do, especially against its competition.

The day when a quantum computer manages to break common encryption, or Q-Day, is fast approaching, and the world is not close to being ready

Quantum computers struggle with a major flaw: their information vanishes unpredictably. Scientists have now created a new method that can measure this loss over 100 times faster than before. By tracking changes in near real time,

A new ultra-fast technique allows scientists to track how quickly quantum information disappears. This breakthrough could help solve one of the biggest challenges in building reliable quantum computers.

But RSA worked until the advent of quantum computers. These machines harness the physics of subatomic particles to process information in fundamentally different ways, including factoring long strings of numbers.

Leaders of the Pacific Northwest's quantum computing realm had lots to celebrate — including a $500,000 boost from Washington state.

A major obstacle in the development of powerful quantum computers is the growing number of cables required to control a computer as the number of qubits increases. Researchers at Chalmers University of Technology in Sweden have now demonstrated that several qubits can share the same cable—without significantly increasing computation time.

Pure plays such as IonQ and Rigetti Computing dominate the quantum computing narrative, but one member of the "Magnificent Seven" may be the better buy.