Browsing Physics and Astronomy by Issue Date
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Projected coupled cluster theory
(2017)Coupled cluster theory is the method of choice for weakly correlated systems. But in the strongly correlated regime, it faces a symmetry dilemma, where it either completely fails to describe the system or has to artificially ... 
Local breaking of fourfold rotational symmetry by shortrange magnetic order in heavily overdoped Ba(Fe1−xCux)2As2
(2017)We investigate Cudoped Ba(Fe1−xCux)2As2 with transport, magnetic susceptibility, and elastic neutron scattering measurements. In the heavily Cudoped regime where longrange stripetype antiferromagnetic order in BaFe2As2 ... 
Molecular origin of the weak susceptibility of kinesin velocity to loads and its relation to the collective behavior of kinesins
(2017)Motor proteins are active enzymatic molecules that support important cellular processes by transforming chemical energy into mechanical work. Although the structures and chemomechanical cycles of motor proteins have been ... 
Skyrmion defects and competing singlet orders in a halffilled antiferromagnetic KondoHeisenberg model on the honeycomb lattice
(2017)Due to the interaction between the topological defects of an order parameter and underlying fermions, the defects can possess induced fermion numbers, leading to several exotic phenomena of fundamental importance to both ... 
Relativistic Shear Flow between Electron–Ion and Electron–Positron Plasmas and Astrophysical Applications
(2017)We present particleincell simulation results of relativistic shear boundary layers between electron–ion and electron–positron plasmas and discuss their potential applications to astrophysics. Specifically, we find that ... 
Towards the Solution of the ManyElectron Problem in Real Materials: Equation of State of the Hydrogen Chain with StateoftheArt ManyBody Methods
(2017)We present numerical results for the equation of state of an infinite chain of hydrogen atoms. A variety of modern manybody methods are employed, with exhaustive crosschecks and validation. Approaches for reaching the ... 
XRay and Radio Observations of the Magnetar SGR J1935+2154 during Its 2014, 2015, and 2016 Outbursts
(2017)We analyzed broadband Xray and radio data of the magnetar SGR J1935+2154 taken in the aftermath of its 2014, 2015, and 2016 outbursts. The source soft Xray spectrum <10 keV is well described with a blackbody+powerlaw ... 
Lifetimes of ultralongrange strontium Rydberg molecules in a dense BoseEinstein condensate
(2017)The lifetimes and decay channels of ultralongrange Rydberg molecules created in a dense BoseEinstein condensate are examined by monitoring the time evolution of the Rydberg population using field ionization. Studies of ... 
Sequential insulatormetalinsulator phase transitions of VO2 triggered by hydrogen doping
(2017)As a typical correlated oxide, V O 2 has attracted significant attentions due to its pronounced thermaldriven metalinsulator transition. Regulating electronic density through electron doping is an effective way to ... 
Orbitalselective Mott phase in multiorbital models for iron pnictides and chalcogenides
(2017)There is increasing recognition that the multiorbital nature of the 3 d electrons is important to the proper description of the electronic states in the normal state of the ironbased superconductors. Earlier studies ... 
Numberconserving interacting fermion models with exact topological superconducting ground states
(2017)We present a method to construct numberconserving Hamiltonians whose ground states exactly reproduce an arbitrarily chosen BCStype meanfield state. Such parent Hamiltonians can be constructed not only for the usual ... 
Direct observation of magnonphonon coupling in yttrium iron garnet
(2017)The magnetic insulator yttrium iron garnet (YIG) with a ferrimagnetic transition temperature of ∼ 560 K has been widely used in microwave and spintronic devices. Anomalous features in spin Seeback effect (SSE) voltages ... 
Tuning Edge States in StrainedLayer InAs/GaInSb Quantum Spin Hall Insulators
(2017)We report on a class of quantum spin Hall insulators (QSHIs) in strainedlayer InAs / GaInSb quantum wells, in which the bulk gaps are enhanced up to fivefold as compared to the binary InAs / GaSb QSHI. Remarkably, ... 
Equation of State and Duration to Radiation Domination after Inflation
(2017)We calculate the equation of state after inflation and provide an upper bound on the duration before radiation domination by taking the nonlinear dynamics of the fragmented inflaton field into account. A broad class of ... 
Lifetimes of ultralongrange Strontium Rydberg molecules in a dense BEC
(2017)The lifetimes and decay channels of ultralongrange strontium Rydberg molecules that contain tens to hundreds of groundstate atoms within the electron orbit are examined by monitoring the time evolution of the Rydberg ... 
Spinprojected generalized HartreeFock method as a polynomial of particlehole excitations
(2017)The past several years have seen renewed interest in the use of symmetryprojected HartreeFock for the description of strong correlations. Unfortunately, these symmetryprojected meanfield methods do not adequately account ... 
Rydberg atom scattering in K(12p)CH3NO2 collisions: role of transient ion pair formation
(2017)Studies of K(12p)CH3NO2 collisions reveal unusually strong Rydberg atom scattering which is attributed to the formation of transient K+..CH3NO2 − ionpair states. 
Magnetic moment evolution and spin freezing in doped BaFe2As2
(2017)FeK β Xray emission spectroscopy measurements reveal an asymmetric doping dependence of the magnetic moments μbare in electron and holedoped BaFe2As2. At low temperature, μbare is nearly constant in holedoped samples, ... 
Onebody density matrix and momentum distribution of strongly interacting onedimensional spinor quantum gases
(2017)The onebody density matrix (OBDM) and the momentum distribution of quantum manybody systems are usually very difficult to calculate. Here we develop a technique to calculate the OBDM and the momentum distribution of a ... 
Autoionization of veryhighn strontium Rydberg atoms
(2017)The autoionization of high n, n~280430, strontium Rydberg states through excitation of the 5s 2S1/2→5p 2P1/2 transition in the core ion is investigated. The autoionization rates decrease rapidly as L is increased paving ...