Why Don’t We Have a USEFUL Quantum Computer Yet?

Why don’t we have practical quantum computers yet? The answer lies in fundamental physics limitations that researchers are working to overcome. The Core Challenge: Quantum decoherence Qubits (quantum bits) are extraordinarily sensitive to environmental interference. Even microscopic vibrations can destroy quantum superposition in milliseconds, making calculations unreliable. By the Numbers: • Classical computers: ~1 error per 10^17 operations • Current quantum computers: ~1 error per 1,000 operations • Current scale: IBM (~1,000 qubits), Google (~105 qubits) • Target for practical applications: 100,000+ error-corrected qubits The Scaling Paradox: More qubits = more power, but also exponentially more error sources and infrastructure requirements. Recent Developments: Microsoft’s topological approach with their Majorana platform represents a potential breakthrough in qubit stability—we investigated their claims in our latest deep-dive. Full analysis with Professor Chetan Nayak on our channel now! #quantumcomputing #quantumphysics #physics #ibm #google #microsoft #majorana #majorana1 #sciencenews #sciencefacts #science #quantum #qubits #computer #computing