Extraction of a squeezed state in a field mode via repeated measurements on an auxiliary quantum particle
Bruno Bellomo, Giuseppe Compagno, Hiromichi Nakazato, and Kazuya Yuasa
The dynamics of a system, consisting of a particle initially in a Gaussian state interacting with a field mode, under the action of repeated measurements performed on the particle, is examined. It is shown that regardless of its initial state the field is distilled into a squeezed state. The depende ... [Phys. Rev. A 80, 052113 (2009)] published Fri Nov 20, 2009.
Measurement of the top quark mass in final states with two leptons
V. M. Abazov, B. Abbott, M. Abolins, B. S. Acharya, M. Adams et al. D0 Collaboration
We present measurements of the top quark mass (m) in t[overline t] candidate events with two final state leptons using 1 fb of data collected by the D0 experiment. Our data sample is selected by requiring two fully identified leptons or by relaxing one lepton requirement to an isolated track if at ... [Phys. Rev. D 80, 092006 (2009)] published Fri Nov 20, 2009.
Fabrication of large-area gallium arsenide nanowires using silicon dioxide nanoparticle mask
Ding-Shin Wang, Jiun-Jie Chao, Shih-Che Hung, and Ching-Fuh Lin
Large-area GaAs nanowires are fabricated using SiO nanoparticles as the etching mask. SiO nanoparticle monolayer is spin coated on the GaAs substrate. To obtain a uniform monolayer of SiO nanoparticles across the substrate, raised temperature, adequate solution concentration, and the substrate treat ... [J. Vac. Sci. Technol. B 27, 2449 (2009)] published Thu Nov 19, 2009.
Factorization structure of gauge theory amplitudes and application to hard scattering processes at the LHC
Jui-yu Chiu, Andreas Fuhrer, Randall Kelley, and Aneesh V. Manohar
Previous work on electroweak radiative corrections to high-energy scattering using soft-collinear effective theory (SCET) has been extended to include external transverse and longitudinal gauge bosons and Higgs bosons. This allows one to compute radiative corrections to all parton-level hard scatter ... [Phys. Rev. D 80, 094013 (2009)] published Thu Nov 19, 2009.
Spin susceptibility of degenerate quark matter
Kausik Pal and Abhee K. Dutt-Mazumder
The expression for spin susceptibility chi of degenerate quark matter is derived with corrections up to [script O](gln g). It is shown that, at low density, chi changes sign and turns negative, indicating a ferromagnetic phase transition. To this order, we also calculate sound velocity c and incomp ... [Phys. Rev. C 80, 054911 (2009)] published Thu Nov 19, 2009.
Environmentally induced shift of the quantum arrival time
M. Genkin, F. Ferro, and E. Lindroth
Using a simple model potential, we study the effects of weak Markovian dissipation on the quantum arrival time. The interaction with the environment is incorporated into the dynamics through a Markovian master equation of Lindblad type, which allows us to compare time-of-arrival distributions and ap ... [Phys. Rev. A 80, 052112 (2009)] published Wed Nov 18, 2009.
Long quantum transition times due to unstable semiclassical dynamics
D. G. Levkov and A. G. Panin
Quantum transitions are described semiclassically as motions of systems along (complex) trajectories. We consider the cases when the semiclassical trajectories are unstable and find that durations of the corresponding transitions are large. In addition, we show that the probability distributions ove ... [Phys. Rev. A 80, 052110 (2009)] published Wed Nov 18, 2009.
Dynamically generated open-charm baryons beyond the zero-range approximation
C. E. Jimenez-Tejero, A. Ramos, and I. Vidana
The interaction of the low-lying pseudoscalar mesons with the ground-state baryons in the charm sector is studied within a coupled-channel approach using a t-channel vector-exchange driving force. The amplitudes describing the scattering of the pseudoscalar mesons off the ground-state baryons are ob ... [Phys. Rev. C 80, 055206 (2009)] published Wed Nov 18, 2009.
Y(4260) as a J/psiK[overline K] system
A. Martinez Torres, K. P. Khemchandani, D. Gamermann, and E. Oset
A study of the J/psipipi and J/psiK[overline K] systems, treating them as coupled channels, has been made by solving the Faddeev equations, with the purpose of investigating the possibility of generation of the J=1, Y(4260) resonance due to the interaction between these three mesons. In order to do ... [Phys. Rev. D 80, 094012 (2009)] published Tue Nov 17, 2009.
Jet energy loss, photon production, and photon-hadron correlations at energies available at the BNL Relativistic Heavy Ion Collider (RHIC)
Guang-You Qin, Jorg Ruppert, Charles Gale, Sangyong Jeon, and Guy D. Moore
Jet energy loss, photon production, and photon-hadron correlations are studied together at high transverse momentum in relativistic heavy-ion collisions at Relativistic Heavy Ion Collider (RHIC) energies. The modification of hard jets traversing a hot and dense nuclear medium is evaluated by consist ... [Phys. Rev. C 80, 054909 (2009)] published Mon Nov 16, 2009.
Gauge-invariant interaction of spin-(3/2) resonances
V. Shklyar and H. Lenske
We show that the gauge-invariant coupling suggested by Pascalutsa removes non-pole terms from the spin-(3/2) propagator only for a specific choice of free parameter. For the general case, the problem can be solved by demanding the invariance of the full Lagrangian under the point-like transformation ... [Phys. Rev. C 80, 058201 (2009)] published Mon Nov 16, 2009.
Multichannel calculation of excited vector phi resonances and the phi(2170)
Susana Coito, George Rupp, and Eef van Beveren
A multichannel calculation of excited J=1phi states is carried out within a generalization of the resonance-spectrum expansion, which may shed light on the classification of the phi(2170) resonance, discovered by BABAR and originally denoted X(2175). In this framework, a complete spectrum of bare s[ ... [Phys. Rev. D 80, 094011 (2009)] published Mon Nov 16, 2009.
New Measurements of the European Muon Collaboration Effect in Very Light Nuclei
J. Seely, A. Daniel, D. Gaskell, J. Arrington, N. Fomin et al.
New Jefferson Lab data are presented on the nuclear dependence of the inclusive cross section from H, He, He, Be and C for 0.3
Fate of the initial state perturbations in heavy ion collisions
Edward Shuryak
Heavy ion collisions at the BNL Relativistic Heavy Ion Collider (RHIC) are well described by the (nearly ideal) hydrodynamics. In the present paper, we study the propagation of perturbations induced by moving charges (jets) on top of the expanding fireball, using hydrodynamics and (dual) magnetohydr ... [Phys. Rev. C 80, 054908 (2009)] published Fri Nov 13, 2009.
Radio frequency operation of clocked quantum-dot cellular automata latch
Yong Tang, Alexei O. Orlov, Gregory L. Snider, and Patrick J. Fay
The radio frequency operation of a single-electron latch based on AlAlOAl tunnel junctions is presented. By capacitively coupling the latch to a radio frequency single electron transistor, charge switching on the microsecond timescale is demonstrated. The fast switching and high repeatability of the ... [Appl. Phys. Lett. 95, 193109 (2009)] published Thu Nov 12, 2009.
Effects of bulk viscosity at freezeout
Akihiko Monnai and Tetsufumi Hirano
We investigate particle spectra and elliptic flow coefficients in relativistic heavy-ion collisions by taking into account the distortion of phase space distributions by bulk viscosity at freezeout. We first calculate the distortion of phase space distributions in a multicomponent system with Grad's ... [Phys. Rev. C 80, 054906 (2009)] published Thu Nov 12, 2009.
Erratum: Axial nucleon and nucleon to Delta form factors and the Goldberger-Treiman relations from lattice QCD [Phys. Rev. D 76, 094511 (2007)]
C. Alexandrou, G. Koutsou, Th. Leontiou, J. W. Negele, and A. Tsapalis
Abstract not available. [Phys. Rev. D 80, 099901 (2009)] published Thu Nov 12, 2009.
Genuine tripartite entanglement in quantum brachistochrone evolution of a three-qubit system
Bao-Kui Zhao, Fu-Guo Deng, Feng-Shou Zhang, and Hong-Yu Zhou
We explore the connection between quantum brachistochrone (time-optimal) evolution of a three-qubit system and its residual entanglement called three-tangle. The result shows that the entanglement between two qubits is not required for some brachistochrone evolutions of a three-qubit system. However ... [Phys. Rev. A 80, 052106 (2009)] published Wed Nov 11, 2009.
Erratum: Real-time renormalization group in frequency space: A two-loop analysis of the nonequilibrium anisotropic Kondo model at finite magnetic field [Phys. Rev. B 80, 045117 (2009)]
Herbert Schoeller and Frank Reininghaus
Abstract not available. [Phys. Rev. B 80, 209901 (2009)] published Wed Nov 11, 2009.
Double charmonium production in exclusive bottomonia decays
V. V. Braguta, A. K. Likhoded, and A. V. Luchinsky
This paper is devoted to the leading twist exclusive bottomonia decays with double charmonium in the final state. Using models of the twist-2 charmonia distribution amplitudes, the widths of these decays are calculated within light cone formalism. In addition, the processes under consideration are s ... [Phys. Rev. D 80, 094008 (2009)] published Wed Nov 11, 2009.
Exchange interaction radically changes the behavior of a quantum particle in a classically forbidden region: A simple model
V. V. Flambaum
Exchange interaction strongly influences the long-range behavior of localized electron orbitals and quantum tunneling amplitudes. In the Hartree-Fock approximation the exchange produces a power-law decay instead of the usual exponential decrease at large distances. To show that this effect is real ( ... [Phys. Rev. A 80, 055401 (2009)] published Tue Nov 10, 2009.