http://prl.aps.org/ Accepted Papers for Physical Review Letters hourly 1 2012-02-09T20:06:26-05:00 rss@aps.org assocpub@aps.org 2012-02-09T20:06:26-05:00 en Copyright © 2012 the American Physical Society. Personal use only, all commercial or other reuse prohibited Copyright © 2012 the American Physical Society assocpub@aps.org http://prl.aps.org/accepted/L/60075Y01X09122279624318806fd51155693e7e98 We present a systematic theoretical study of the BCS-BEC crossover in two-dimensional Fermi gases with Rashba spin-orbit coupling (SOC). By solving the exact two-body problem in the presence of an attractive short-range interaction we show that the SOC enhances the formation of the bound state: the ... BCS-BEC crossover in 2d Fermi gases with Rashba spin-orbit coupling 2012-02-09T10:00:00-05:00 Personal use only, all commercial or other reuse prohibited Phys. Rev. Lett. article Physical Review Letters http://prl.aps.org/accepted/L/60075Y01X09122279624318806fd51155693e7e98 Condensed Matter: Structure, etc. Condensed Matter: Structure, etc. http://prl.aps.org/accepted/L/c7073YdfW171f93110ed7613fb8c74476d31d9a67 We theoretically demonstrate the formation of a new type of unconventional superconductivity in graphene materials, which exhibits gapless property. The studied superconductivity is based on an interlayer pairing of chiral electrons in bilayer graphene, which results in an exotic s-wave spin-triplet... Model of an exotic chiral superconducting phase in a graphene bilayer 2012-02-09T10:00:00-05:00 Personal use only, all commercial or other reuse prohibited Phys. Rev. Lett. article Physical Review Letters http://prl.aps.org/accepted/L/c7073YdfW171f93110ed7613fb8c74476d31d9a67 Condensed Matter: Electronic Properties, etc. Condensed Matter: Electronic Properties, etc. http://prl.aps.org/accepted/L/d3079Y74Z071732c773854533f417ee83339f7d94 The effect of increasing pre-pulse energy levels on the energy-spectrum and coupling into forward-going electrons is evaluated in a cone-guided fast-ignition relevant geometry using cone-wire targets irradiated with a high intensity (1020 W/cm2) laser pulse. Hot electron temperature and flux are inf... Hot electron temperature and coupling efficiency scaling with pre-pulse for cone-guided fast ignition 2012-02-09T10:00:00-05:00 Personal use only, all commercial or other reuse prohibited Phys. Rev. Lett. article Physical Review Letters http://prl.aps.org/accepted/L/d3079Y74Z071732c773854533f417ee83339f7d94 Plasma and Beam Physics Plasma and Beam Physics http://prl.aps.org/accepted/L/dd07aY77C65R6815a0ee29982639c2404f884efb0 Abstract not available Erratum: $Otho-para$ H$_2$ conversion by proton exchange at low temperature: An accurate quantum mechanical study [Phys. Rev. Lett. \textbf{107}, 023201 (2011)] 2012-02-08T10:00:00-05:00 Personal use only, all commercial or other reuse prohibited Phys. Rev. Lett. article Physical Review Letters http://prl.aps.org/accepted/L/dd07aY77C65R6815a0ee29982639c2404f884efb0 Errata Errata http://prl.aps.org/accepted/L/b4079Yf8Scc1cb3da3576026604d2be052144644a We report an infrared optical study of the pnictide high-temperature superconductor BaFe1.84Co0.16As2 and its parent compound BaFe2As2. We demonstrate that electronic correlations are moderately strong and do not change across the spin-density wave transition or with doping. By examining the energy ... Electronic correlations and unconventional spectral weight transfer in the high-temperature pnictide BaFe$_{2-x}$Co$_{x}$As$_{2}$ superconductor using infrared spectroscopy 2012-02-08T10:00:00-05:00 Personal use only, all commercial or other reuse prohibited Phys. Rev. Lett. article Physical Review Letters http://prl.aps.org/accepted/L/b4079Yf8Scc1cb3da3576026604d2be052144644a Condensed Matter: Electronic Properties, etc. Condensed Matter: Electronic Properties, etc. http://prl.aps.org/accepted/L/0707cYd8Zab1db2907f42af3cd4719969beddf769 It is shown that perfectly quasi-isodynamic stellarators are immune to all the usual linear density-gradient-driven trapped-particle instabilities in the electrostatic and collisionless limit. This result follows from the requirement of positive entropy production and is thus independent of all othe... Resilience of quasi-isodynamic stellarators against trapped-particle instabilities 2012-02-08T10:00:00-05:00 Personal use only, all commercial or other reuse prohibited Phys. Rev. Lett. article Physical Review Letters http://prl.aps.org/accepted/L/0707cYd8Zab1db2907f42af3cd4719969beddf769 Plasma and Beam Physics Plasma and Beam Physics http://prl.aps.org/accepted/L/c107bY9aWb91643fd3f083c2ad492d6be0534208f For topologically nontrivial and very narrow bands, Coulomb repulsion between electrons has been predicted to give rise to a spontaneous fractional quantum-Hall (FQH) state in absence of magnetic fields. Here we show that strongly correlated electrons in a t2g-orbital system on a triangular lattice ... Fractional quantum-Hall liquid spontaneously generated by strongly correlated $t_{2g}$ electrons 2012-02-08T10:00:00-05:00 Personal use only, all commercial or other reuse prohibited Phys. Rev. Lett. article Physical Review Letters http://prl.aps.org/accepted/L/c107bY9aWb91643fd3f083c2ad492d6be0534208f Condensed Matter: Electronic Properties, etc. Condensed Matter: Electronic Properties, etc. http://prl.aps.org/accepted/L/a1077Y50W0611238a2ed32d98cf1d2e2e9e3bbfc7 Critical properties of quantum Hall systems are affected by the presence of extra edge channels-present, in particular, at higher plateau transitions. We study this phenomenon for the case of the spin quantum Hall transition. Using supersymmetry we map the corresponding network model to a classical ... Exact exponents for the spin quantum Hall transition in the presence of multiple edge channels 2012-02-08T10:00:00-05:00 Personal use only, all commercial or other reuse prohibited Phys. Rev. Lett. article Physical Review Letters http://prl.aps.org/accepted/L/a1077Y50W0611238a2ed32d98cf1d2e2e9e3bbfc7 Condensed Matter: Electronic Properties, etc. Condensed Matter: Electronic Properties, etc. http://prl.aps.org/accepted/L/c2079Y30T171993f155a47f2737424ada4e56347b We report here for the first time about the registration of an extraordinary high flux of low-energy neutrons generated during thunderstorms. The measured neutron count rate enhancements are directly connected with thunderstorm discharges. The low-energy neutron flux value obtained in our work is a ... Strong flux of low-energy neutrons produced by thunderstorms 2012-02-08T10:00:00-05:00 Personal use only, all commercial or other reuse prohibited Phys. Rev. Lett. article Physical Review Letters http://prl.aps.org/accepted/L/c2079Y30T171993f155a47f2737424ada4e56347b Plasma and Beam Physics Plasma and Beam Physics http://prl.aps.org/accepted/L/3407eY59W701ca22176a94550a2df3ddbdf7adf3b We use scanning gate microscopy (SGM) to probe the ballistic motion of electrons within an open GaAs/AlGaAs quantum dot. Conductance maps are recorded by scanning a biased tip in a cryogenic SGM over the open quantum dot while a magnetic field is applied. We show that, for specific magnetic fields, ... Direct imaging of electron states in open quantum dots 2012-02-08T10:00:00-05:00 Personal use only, all commercial or other reuse prohibited Phys. Rev. Lett. article Physical Review Letters http://prl.aps.org/accepted/L/3407eY59W701ca22176a94550a2df3ddbdf7adf3b Condensed Matter: Electronic Properties, etc. Condensed Matter: Electronic Properties, etc. http://prl.aps.org/accepted/L/0d070Y4aW2412e30003a0b66831f6a57e7a273c43 Quantum key distribution (QKD) offers the promise of absolutely secure communications. However, proofs of absolute security often assume perfect implementation from theory to experiment. Thus, existing systems may be prone to insidious side-channel attacks that rely on flaws in experimental implemen... Side-channel-free quantum key distribution 2012-02-08T10:00:00-05:00 Personal use only, all commercial or other reuse prohibited Phys. Rev. Lett. article Physical Review Letters http://prl.aps.org/accepted/L/0d070Y4aW2412e30003a0b66831f6a57e7a273c43 General Physics: Statistical and Quantum Mechanics, Quantum Information, etc. General Physics: Statistical and Quantum Mechanics, Quantum Information, etc. http://prl.aps.org/accepted/L/be07cY49Wf51223003ee1fe127c4a7bc43de49a1d High-resolution measurements of impurity ion dynamics provide first-time evidence of classical ion confinement in a toroidal, magnetically confined plasma. The density profile evolution of fully-stripped carbon is measured in MST reversed-field pinch plasmas with reduced magnetic turbulence to asses... Classical impurity ion confinement in a toroidal magnetized fusion plasma 2012-02-08T10:00:00-05:00 Personal use only, all commercial or other reuse prohibited Phys. Rev. Lett. article Physical Review Letters http://prl.aps.org/accepted/L/be07cY49Wf51223003ee1fe127c4a7bc43de49a1d Plasma and Beam Physics Plasma and Beam Physics http://prl.aps.org/accepted/L/77072Y54X6913735b0be5b05124d31cff43b910bd How to remove detector side channel attacks has been a notoriously hard problem in quantum cryptography. Here, we propose a simple solution to this problem-measurement device independent quantum key distribution. It not only removes all detector side channels, but also doubles the secure distance wi... Quantum key distribution independent of the measurement device 2012-02-08T10:00:00-05:00 Personal use only, all commercial or other reuse prohibited Phys. Rev. Lett. article Physical Review Letters http://prl.aps.org/accepted/L/77072Y54X6913735b0be5b05124d31cff43b910bd General Physics: Statistical and Quantum Mechanics, Quantum Information, etc. General Physics: Statistical and Quantum Mechanics, Quantum Information, etc. http://prl.aps.org/accepted/L/8b077Y30Ab61a53ab16689c3be053eb88fd64d713 The gap state that appears upon reduction of TiO2 plays a key role in many of titania's interesting properties but its origin and spatial localization have remained unclear. In the present work, the TiO2(110) surface is reduced in a chemically controlled way by sodium adsorption. By means of resonan... Intrinsic nature of the excess electron distribution at the TiO$_2$(110) surface 2012-02-08T10:00:00-05:00 Personal use only, all commercial or other reuse prohibited Phys. Rev. Lett. article Physical Review Letters http://prl.aps.org/accepted/L/8b077Y30Ab61a53ab16689c3be053eb88fd64d713 Condensed Matter: Electronic Properties, etc. Condensed Matter: Electronic Properties, etc. http://prl.aps.org/accepted/L/7b070Y43Z49185285940658611d0141a1cc1ff500 We report on theoretical studies of electronic transport in the archetypical molecular hybrid formed by DNA wrapped around single-walled carbon nanotubes (CNTs). Using a Green's function formalism in a p-orbital tight-binding representation, we investigate the role that spin-orbit interactions play ... Helicoidal fields and spin polarized currents in carbon nanotube-DNA hybrids 2012-02-08T10:00:00-05:00 Personal use only, all commercial or other reuse prohibited Phys. Rev. Lett. article Physical Review Letters http://prl.aps.org/accepted/L/7b070Y43Z49185285940658611d0141a1cc1ff500 Condensed Matter: Electronic Properties, etc. Condensed Matter: Electronic Properties, etc. http://prl.aps.org/accepted/L/0907bY18X9d1e037d58e2667914aa89bbebd46da3 We report on experiments exploring Stark-tuned Förster resonances between Rydberg atoms with unprecedented resolution in the Förster defect. The individual resonances are expected to exhibit different angular dependencies, opening the possibility to tune not only the interaction strength b... Highly resolved measurements of Stark-tuned F\"orster resonances between Rydberg atoms 2012-02-08T10:00:00-05:00 Personal use only, all commercial or other reuse prohibited Phys. Rev. Lett. article Physical Review Letters http://prl.aps.org/accepted/L/0907bY18X9d1e037d58e2667914aa89bbebd46da3 Atomic, Molecular, and Optical Physics Atomic, Molecular, and Optical Physics http://prl.aps.org/accepted/L/53073Y7eZ731d937b0663fd6c37d1020c53f4df0e Presently, the Stark effect contributes the largest source of uncertainty in a ytterbium optical atomic clock through blackbody radiation. By employing an ultracold, trapped atomic ensemble and high stability optical clock, we characterize the quadratic Stark effect with unprecedented precision. We ... High accuracy measurement of atomic polarizability in an optical lattice clock 2012-02-08T10:00:00-05:00 Personal use only, all commercial or other reuse prohibited Phys. Rev. Lett. article Physical Review Letters http://prl.aps.org/accepted/L/53073Y7eZ731d937b0663fd6c37d1020c53f4df0e Atomic, Molecular, and Optical Physics Atomic, Molecular, and Optical Physics http://prl.aps.org/accepted/L/1207cY5dXf21c83444bb13939068845b93bd0c9c1 Studies of 6He beta decay along with tritium can play an important role in testing ab-initio nuclear wave-function calculations and may allow for fixing low-energy constants in effective field theories. Here, we present an improved determination of the 6He half-life to a relative precision of 3 &tim... Precision measurement of the $^6$He half-life and the weak axial current in nuclei 2012-02-08T10:00:00-05:00 Personal use only, all commercial or other reuse prohibited Phys. Rev. Lett. article Physical Review Letters http://prl.aps.org/accepted/L/1207cY5dXf21c83444bb13939068845b93bd0c9c1 Nuclear Physics Nuclear Physics http://prl.aps.org/accepted/L/9f073Y5dMeb1562ac2976d719263862daaf1f46ff We study spontaneously forming convection in a container that is almost completely filled with a bidisperse granular mixture. The container with an aspect ratio close to one rotates slowly about a horizontal axis. In this geometry, single vortex rolls are observed in the cell plane, after a spontane... Oscillations, cessations and circulation reversals of granular convection in a densely filled rotating container 2012-02-08T10:00:00-05:00 Personal use only, all commercial or other reuse prohibited Phys. Rev. Lett. article Physical Review Letters http://prl.aps.org/accepted/L/9f073Y5dMeb1562ac2976d719263862daaf1f46ff Soft Matter, Biological, and Interdisciplinary Physics Soft Matter, Biological, and Interdisciplinary Physics http://prl.aps.org/accepted/L/c807bYa8S6eX6a12201a723884773776206c6cf10 Abstract not available Comment on ``Energy-dependent excitation cross section measurements of the diagnostic lines of Fe ${\small XVII}$'' 2012-02-07T10:00:00-05:00 Personal use only, all commercial or other reuse prohibited Phys. Rev. Lett. article Physical Review Letters http://prl.aps.org/accepted/L/c807bYa8S6eX6a12201a723884773776206c6cf10 Comments Comments http://prl.aps.org/accepted/L/7f07eY80Y65X641461c000d724e1fc938758ec723 Abstract not available Brown \textit {et al.} reply 2012-02-07T10:00:00-05:00 Personal use only, all commercial or other reuse prohibited Phys. Rev. Lett. article Physical Review Letters http://prl.aps.org/accepted/L/7f07eY80Y65X641461c000d724e1fc938758ec723 Comments Comments http://prl.aps.org/accepted/L/60076YbaZ561f92c687a7ba59f6008ab3fafaafc1 We employ Monte Carlo simulations to study the non-equilibrium relaxation of driven Ising lattice gases in two dimensions. Whereas the temporal scaling of the density auto-correlation function in the non-equilibrium steady state does not allow a precise measurement of the critical exponents, these c... Nonequilibrium relaxation and critical aging for driven Ising lattice gases 2012-02-07T10:00:00-05:00 Personal use only, all commercial or other reuse prohibited Phys. Rev. Lett. article Physical Review Letters http://prl.aps.org/accepted/L/60076YbaZ561f92c687a7ba59f6008ab3fafaafc1 General Physics: Statistical and Quantum Mechanics, Quantum Information, etc. General Physics: Statistical and Quantum Mechanics, Quantum Information, etc. http://prl.aps.org/accepted/L/7a078Y3aZ9a1fd3583b775543e07ce7d3f79296c2 We demonstrate that nonlinear magnetic metamaterials comprised of a lattice of weakly coupled split-ring resonators driven by external electromagnetic field may support entirely new classes of spatially localized modes - knotted solitons, which are stable self-localized dissipative structures in the... Knotted solitons in nonlinear magnetic metamaterials 2012-02-07T10:00:00-05:00 Personal use only, all commercial or other reuse prohibited Phys. Rev. Lett. article Physical Review Letters http://prl.aps.org/accepted/L/7a078Y3aZ9a1fd3583b775543e07ce7d3f79296c2 Nonlinear Dynamics, Fluid Dynamics, Classical Optics, etc. Nonlinear Dynamics, Fluid Dynamics, Classical Optics, etc. http://prl.aps.org/accepted/L/fe071Yc2Y1f1e037a5c63f43aaa81ea52c3eb4f28 We propose a novel scheme for the efficient production of "NOON states" based on the resonant interaction of a pair of quantized cavity modes with an ensemble of atoms. We show that in the strong-coupling regime the adiabatic evolution of the system tends to a limiting state that describes mesoscopi... Generation of mesoscopic entangled states in a cavity coupled to an atomic ensemble 2012-02-07T10:00:00-05:00 Personal use only, all commercial or other reuse prohibited Phys. Rev. Lett. article Physical Review Letters http://prl.aps.org/accepted/L/fe071Yc2Y1f1e037a5c63f43aaa81ea52c3eb4f28 Atomic, Molecular, and Optical Physics Atomic, Molecular, and Optical Physics http://prl.aps.org/accepted/L/c3078Yf2Z7c1ec20386c9901ee25e42d36dc5c6a7 The parity-violating (PV) asymmetry of inclusive p- production in electron scattering from a liquid deuterium target was measured at backward angles. The measurement was conducted as a part of the G0 experiment, at a beam energy of 360 MeV. The physics process dominating pion production for the... Measurement of the parity-violating asymmetry in inclusive electroproduction of $\pi^-$ near the $\Delta^0$ resonance 2012-02-07T10:00:00-05:00 Personal use only, all commercial or other reuse prohibited Phys. Rev. Lett. article Physical Review Letters http://prl.aps.org/accepted/L/c3078Yf2Z7c1ec20386c9901ee25e42d36dc5c6a7 Elementary Particles and Fields Elementary Particles and Fields http://prl.aps.org/accepted/L/88076Y1cZf313a34f3e883e5146ab64810b3bf181 \textcolor{red}{We discuss the consequences of a variant of the Hatano-Sasa relation in which a non-stationary distribution is used in place of the usual stationary one. We first show that this non-stationary distribution is related to a difference of traffic between the direct and dual dynamics. Wi... Inequalities generalizing the second law of thermodynamics for transitions between nonstationary states 2012-02-07T10:00:00-05:00 Personal use only, all commercial or other reuse prohibited Phys. Rev. Lett. article Physical Review Letters http://prl.aps.org/accepted/L/88076Y1cZf313a34f3e883e5146ab64810b3bf181 General Physics: Statistical and Quantum Mechanics, Quantum Information, etc. General Physics: Statistical and Quantum Mechanics, Quantum Information, etc. http://prl.aps.org/accepted/L/3b079Y3aZ9714e3875183622342422870c6e662c2 We calculate the charge transport properties of nanoscale junctions in the steady state and extend the concept of charge susceptibility to the conditions. We show that the charge susceptibility is related to the non-linear dynamical conductance. In spectroscopic terms, both contain the same features... Non-equilibrium charge susceptibility and dynamical conductance: Identification of scattering processes in quantum transport 2012-02-07T10:00:00-05:00 Personal use only, all commercial or other reuse prohibited Phys. Rev. Lett. article Physical Review Letters http://prl.aps.org/accepted/L/3b079Y3aZ9714e3875183622342422870c6e662c2 Condensed Matter: Electronic Properties, etc. Condensed Matter: Electronic Properties, etc. http://prl.aps.org/accepted/L/a2077Y9eYb21a53c647d4085049f4d01a197915e4 We have imaged hard x-ray ( > 100 keV) bremsstrahlung emission from energetic electrons slowing in a plastic ablator shell during indirectly driven implosions at the National Ignition Facility. We measure 570 J in electrons with E > 100 keV impinging on the fusion capsule under ignition drive conditio... Direct measurement of energetic electrons coupling to an imploding low-adiabat inertial confinement fusion capsule 2012-02-07T10:00:00-05:00 Personal use only, all commercial or other reuse prohibited Phys. Rev. Lett. article Physical Review Letters http://prl.aps.org/accepted/L/a2077Y9eYb21a53c647d4085049f4d01a197915e4 Plasma and Beam Physics Plasma and Beam Physics http://prl.aps.org/accepted/L/90077Y63Zfa19e3171cf98f50e15b5cc90d18909a We demonstrate the QCD factorization for inclusive hadron production in pA collisions in the saturation formalism at one-loop order, with explicit calculation of both real and virtual gluon radiation diagrams. In particular, we find that the cross section can be written into a factorization form in ... One-loop factorization for inclusive hadron production in p-A collisions in the saturation formalism 2012-02-07T10:00:00-05:00 Personal use only, all commercial or other reuse prohibited Phys. Rev. Lett. article Physical Review Letters http://prl.aps.org/accepted/L/90077Y63Zfa19e3171cf98f50e15b5cc90d18909a Nuclear Physics Nuclear Physics http://prl.aps.org/accepted/L/8b07bY5dZe71ad2da9b35907f9d29715a18cfd4dd In this paper, we show that the hidden SL(2, \mathbbR) symmetry of a harmonically trapped Fermi gas in two dimensions is broken by quantum effects. The anomalous correction to the symmetry algebra is given by a two-body operator which is well-known as the contact. Taking into account this modificati... Quantum anomaly, universal relations, and breathing mode of a two-dimensional Fermi gas 2012-02-07T10:00:00-05:00 Personal use only, all commercial or other reuse prohibited Phys. Rev. Lett. article Physical Review Letters http://prl.aps.org/accepted/L/8b07bY5dZe71ad2da9b35907f9d29715a18cfd4dd Condensed Matter: Structure, etc. Condensed Matter: Structure, etc.