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Molecular Currents

October 30, 2009

Researchers measured how the electrical conductance between two C60 molecules depends on their distance and orientation.

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Papers the editors and referees find of particular interest, importance, or clarity.

Physical Review Letters
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Viewpoints

Can superconducting rings provide clues to the early development of the universe?

Can superconducting rings provide clues to the early development of the universe? John R. Kirtley and Francesco Tafuri, November 2, 2009Defects—in the form of vortices in superconductors or “strings” in the fabric of the universe—can reveal the state of a system at the time it was cooled. Read More »

Flipping a photonic shock wave

Flipping a photonic shock wave Shuang Zhang and Xiang Zhang, November 2, 2009Čerenkov radiation with the emission cone reversed has been observed in a metamaterial with negative refractive index. Read More »

Tensor networks—a new tool for old problems

Tensor networks—a new tool for old problems Subir Sachdev, October 26, 2009A new renormalization group approach that maps lattice problems to tensor networks may hold the key to solving seemingly intractable models of strongly correlated systems in any dimension. Read More »

Slipping through blood flow

Slipping through blood flow Howard A. Stone, Alison M. Forsyth and Jiandi Wan, October 26, 2009Simulations provide insight into how viscous flow transforms the shapes of red blood cells, which may influence their physiological properties. Read More »

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Trends

Nearly perfect fluidity

Nearly perfect fluidity Nearly perfect fluidity Nearly perfect fluidity Thomas Schäfer, October 26, 2009Is there a fundamental lower bound on viscosity? To answer this question, we can look at the coldest and hottest fluids that laboratories are able to produce. Read More »

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Editorials

Physics —one year out of the gate

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. Read More »

Synopses

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Attoseconds for all

November 2, 2009 [Synopsis on Phys. Rev. Lett. 103, 183901 (2009)]

Optics

An advance in attosecond pulse generation will make it easier to produce a single pulse. Read More »

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Predicting crystal structures

November 2, 2009 [Synopsis on Phys. Rev. Lett. 103, 188302 (2009)]

Materials Science

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. Read More »

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An ultracold graphene analog

October 26, 2009 [Synopsis on Phys. Rev. A 80, 043411 (2009)]

Atomic and Molecular Physics

The properties of graphene might be studied from another angle by putting ultracold atoms into a hexagonal optical lattice. Read More »

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Supercurrents in a junction—it’s all about the timing

October 26, 2009 [Synopsis on Phys. Rev. Lett. 103, 177002 (2009)]

Superconductivity

Microwave-frequency excitation of a superconductor-metal-superconductor junction is used to resolve the dynamic mechanisms behind the temporal response. Read More »

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