Maybe, maybe not. Quantum computing is not the same thing as a normal computer. Normal computers operate by using binary, ones and zeros, in layman's terms you could say that a regular computer checks if the switch is on and off and works like that. A quantum computer, however, works with qubit. One zero, zero one, one one, zero zero. You get the point. "I heard somewhere that the recent bear market has something to do with this news also." I don't think this is true as Quantum computing is not something that everyone can do. Forget being available for consumers, it's not even available for enterprise work. The only places that (probably) have a quantum computer are institutions. Some super-high-end universities, NASA, companies like Google and/or some governments. And of course, as I said, the technology is
NOT for mining coins. And it will probably be like that for a quite a long time. But can you mine coins with quantum computers? Probably, theoretically?
If you would like to read a bit more about quantum computing, I can refer you
here