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26.
Synopsis
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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. |
27.
Viewpoint
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Physics 2, 82 (2009) – Published October 5, 2009 Quantum Information Semiconductor Physics Mesoscopics Nanophysics A theoretical analysis of recent experiments suggests that a key feature of a topological quantum computer—the unusual statistics of quasiparticles in the quantum Hall effect—may finally have been observed. |
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Physics 2, 83 (2009) – Published October 5, 2009 An entangled state of six photons could potentially carry quantum information over large distances and between different reference frames. |
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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. |
30.
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Published October 5, 2009 Rotating electric fields can power the flow of water along a nanochannel. |
31.
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Physics 2, 80 (2009) – Published September 28, 2009 New methods for lowering the entropy of ultracold gases may allow observation of more subtle quantum materials. |
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Viewpoint
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Physics 2, 81 (2009) – Published September 28, 2009 The existence, through statistical fluctuation, of arbitrarily large regions with a certain order in an otherwise disordered system, allow one to set bounds on various important thermodynamic properties. |
33.
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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. |
34.
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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. |
35.
Synopsis
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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. |
36.
Viewpoint
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Physics 2, 78 (2009) – Published September 21, 2009 An angle-resolved photoemission spectroscopy study of electron transport along quasi-one-dimensional Mo-O chains of Li0.9Mo6O17 reveals puzzling behavior that does not fit within the available one-dimensional theory frameworks and likely points to undiscovered physics. |
37.
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Physics 2, 79 (2009) – Published September 21, 2009 Particles & Fields Gravitation A mathematical formulism makes a step forward in proving the AdS/CFT correspondence that connects quantum mechanics with gravity. |
38.
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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. |
39.
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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. |
40.
Editorial
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Physics 2, 77 (2009) – Published September 14, 2009 More than a year ago, the American Physical Society launched Physics with the goal of having scientists explain and comment on the work of their peers, as published in the journals of the APS. This newest of the APS publications went online in beta mode on 14 July 2008 with a full complement of expert commentaries, followed by a bigger splash in September 2008 with email announcements to APS members, authors, and referees. |
41.
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Physics 2, 75 (2009) – Published September 14, 2009 Magnetism Nanophysics Spintronics A microscopic study of magnetic nanoislands on a surface challenges the widely held view that all atoms in a relaxing nanoparticle flip their spins in unison. |
42.
Viewpoint
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Physics 2, 76 (2009) – Published September 14, 2009 An electric field can be used to pull on molecular hydrogen’s highly excited outer electron to slow down and trap the molecule. |
43.
Trends
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Physics 2, 74 (2009) – Published September 14, 2009 Convection in a fluid heated from below, known as Rayleigh-Bénard convection, is an important turbulent process that occurs in the sun, planetary atmospheres, industrial manufacturing, and many other places. Physicists and engineers have made much progress in understanding this phenomenon in simple laboratory geometries, but still have a way to go before they are able to extrapolate to the extreme conditions often encountered in nature. |
44.
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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. |
45.
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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. |
46.
Synopsis
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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. |
47.
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Published September 14, 2009 A new model yields insights about fermionic pairing in ultracold gases. |
48.
Viewpoint
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Physics 2, 73 (2009) – Published September 8, 2009 Magnetic switching is typically a continuous process, where a field pulse rotates a magnet from up to down, but it is now possible to do this faster — and with all-optical methods — by first quenching the magnetization to zero and then repolarizing it in the opposite direction. |
49.
Synopsis
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Published September 8, 2009 The full Dirac spectrum has been measured in intercalated graphite. |
50.
Synopsis
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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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