It’s now going to be era of quantum computing. Such computers would use the quantum properties of atoms or molecules to perform calculations in a fraction of the time it would take conventional computers. Silicon could provide a useful path to systems with 100 or more qubits, say some scientists, because it would make quantum computers easily compatible with conventional ones. In the past few months, researchers have reported progress in using the phosphorus-in-silicon system. In the latest development, it is reported that by using bursts of radio waves, it is managed to entangle the spins of 10 billion pairs of electrons and nuclei in a crystal of phosphorus-doped silicon. Entanglement is a phenomenon that allows quantum particles to be interlinked even if they are separated. It is used in quantum computing, along with another quantum phenomenon called superposition, to create qubits that can exist in many different states at the same time.
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