A way to move forward
According to the ScienceWatch interview (2009) with Ignacio Cirac, one of the properties of qubits that does not exist in classical mechanics is entanglement or correlation between two or more qubits that are related to each other (the qubit can have values 0 and 1 at the same time in the same place). Understanding entanglement can help scientist create a potential quantum computer in the future (ScienceDaily, 2011). To expand on this, I have found an article that discusses recent scientific developments in quantum entanglement. According to JCNNewswire (2011), about a month ago scientists in the Kohei Itoh Laboratory have made a dramatic breakthrough in their research in quantum entanglement. They have "successfully generated and detected quantum entanglement between electron spin and nuclear spin in phosphorus impurities added to silicon," which means that this is the "first successful generation and detection of entanglement, which is essential for quantum computing" (JCNNewswire, 2011).