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Best of Last Week—Transferring quantum states, wireless energy breakthrough and a drug that helps Alzheimer's patients

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It has once again been an interesting week for physics—a team working in China demonstrated a quantum communication scheme that transferred quantum states without transmitting physical particles. They showed it was possible, using entanglement, to send quantum information between two distant points without having to send anything else. Also, a team of astrophysicists has found a possible loophole in cosmological theory that offers insight into the "lithium problem." Actual measurements used to calculate the total amount of lithium in the universe have not jibed with theory, and now a team at Université Savoie Mont Blanc is suggesting that the problem may be connected to the theory of electromagnetic cascades.

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