Has NTT sparked the long-awaited quantum-computing revolution?

Working with OptQC, the Japanese company wants to make a game-changing optical quantum computer that operates at room temperature.

For the past decade, quantum computing has struggled to balance promise and practicality. While the world’s most advanced systems remain engineering marvels, they’re bedeviled by the same flaw: the fragility of qubits—the fundamental units of quantum data—and the delicate hardware required to control them. A single fluctuation, for example, can collapse a quantum state, invalidating a computation.