Shor PW. Quantum information theory: The bits don't add up. Nat Phys. 2009;5:247–8.
Abstract: A counterexample to the 'additivity question', the most celebrated open problem in the mathematical theory of quantum information, casts doubt on the possibility of finding a simple expression for the information capacity of a quantum channel.
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Haviland D. Superconducting circuits: Quantum phase slips. Nat Phys. 2010;6:565–566.
Abstract: Coulomb interactions can cause a rapid change in the phase of the wavefunction along a very narrow superconducting system. Such a phase slip at the quantum level is now measured in a chain of Josephson junctions.
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Mineev VP. Superfluid helium: Order in disorder. Nat Phys. 2012;8:253–254.
Abstract: Confining liquid 3He in porous silica aerogel prepared with strong anisotropy stabilizes a state of axial superfluidity.
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Barreiro JT. Quantum physics: Environmental effects controlled. Nat Phys. 2011;7:927–928.
Abstract: An open quantum system loses its 'quantumness' when information about the state leaks into its surroundings. Researchers now show how this decoherence can be controlled between two incompatible regimes in the case of a single photon.
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Hannay T. A new kind of science? Nat Phys. 2011;7:742.
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