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Published November 16, 2009 First-principles calculations explore how magnetic interactions impede the formation of atomically thin wires. |
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Published November 16, 2009 Whether two quantum states can be distinguished over time provides a test to characterize noise from the environment. |
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Published November 11, 2009 An analysis of the citation network leads to an alternative way to quantitatively assess the impact of a scientist’s work. |
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Published November 9, 2009 Below a critical thickness, liquid-crystal films will exhibit molecular ordering similar to that of spins in a helical magnet. |
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Published November 2, 2009 When crystal formation is purely entropy driven, as is the case for superstructures of nanoparticles with hard-sphere interactions, new simulations that can run at finite temperature are needed. |
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Published November 2, 2009 An advance in attosecond pulse generation will make it easier to produce a single pulse. |
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Published October 26, 2009 The properties of graphene might be studied from another angle by putting ultracold atoms into a hexagonal optical lattice. |
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Published October 26, 2009 Microwave-frequency excitation of a superconductor-metal-superconductor junction is used to resolve the dynamic mechanisms behind the temporal response. |
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Published October 19, 2009 An alternative approach in density-functional theory addresses the effects of strong correlations in many-particle quantum systems. |
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Published October 19, 2009 A quantum algorithm that uses the solution to a set of linear equations provides an exponential speedup by comparison with classical alternatives. |
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Published October 12, 2009 A model of the quark-gluon plasma predicts it could emit the sort of ultrashort light pulses that would be useful for high-speed spectroscopy. |
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Published October 12, 2009 Disorder causes an unexpected quantum phase transition in graphene. |
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Published October 5, 2009 Rotating electric fields can power the flow of water along a nanochannel. |
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Published October 5, 2009 Femtosecond light pulses at two different frequencies are effective in aligning and orienting molecules without the need for a strong static field. |
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Published September 28, 2009 By generalizing the idea of a moveable mirror, it may be possible to observe the dynamical Casimir effect. |
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Published September 28, 2009 The atoms in an optical lattice could form the basis for a complete circuit including a diode or a transistor. |
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Published September 28, 2009 A Bose-Einstein condensate of calcium atoms has been created, the first from alkaline earth elements and potentially useful for stable clocks and precision measurements. |
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Published September 21, 2009 The demonstration of photon emission as free-electrons pass through a nanoscale grating could pave the way for a new generation of on-chip tunable light sources. |
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Published September 21, 2009 Atomic & Molecular Physics Optics Ultrafast optical probing of an ionized molecule with different pulse durations reveals details of the dynamics of vibrational excitations. |
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Published September 14, 2009 Simulations support the prediction that when nuclei are squeezed to high densities in the core of a supernova, they merge into exotic shapes such as rods and slabs. |
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Published September 14, 2009 A new model yields insights about fermionic pairing in ultracold gases. |
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Published September 14, 2009 A trapped ion reveals the difference between a quantum particle executing a random walk and its classical version. |
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Published September 14, 2009 A full quantum mechanical description of how light interacts with matter in higher-harmonic generation may lead to better control over the production of isolated and sequential attosecond ultraviolet pulses. |
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Published September 8, 2009 Cavity cooling maintains the coherence of the internal states of a positively charged ion, which is essential for the storage of quantum information. |
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Published September 8, 2009 The full Dirac spectrum has been measured in intercalated graphite. |
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