http://pra.aps.org/ Recent articles in Physical Review A en-us Copyright (c) 2009 The American Physical Society 2009-11-06T22:15:02-05:00 assocpub@aps.org rss@aps.org hourly 4 2009-11-06T22:15:02-05:00 rss@aps.org http://link.aps.org/doi/10.1103/PhysRevA.80.053808 Author(s): J. M. Taylor and G. D. Love<br/>It has been known for some time that simple “optically bound” chains of dielectric microparticles can form in a counter propagating Gaussian beam optical trap. Here we report experimental observations of more complex trapped states, which do not reflect the underlying symmetry of the optical bea...<br/>[Phys. Rev. A 80, 053808] Published Fri Nov 06, 2009 J. M. Taylor and G. D. Love 2009-11-06T00:00:00-05:00 Personal use only, all commercial or other reuse prohibited 10.1103/PhysRevA.80.053808 Phys. Rev. A 80, 053808 text/html article Physical Review A 80 5 2009-11-06T00:00:00-05:00 053808 Quantum optics, physics of lasers, nonlinear optics, classical optics Quantum optics, physics of lasers, nonlinear optics, classical optics http://link.aps.org/doi/10.1103/PhysRevA.80.053605 Author(s): M. Punk, P. T. Dumitrescu, and W. Zwerger<br/>A single down-spin fermion with an attractive zero-range interaction with a Fermi sea of up-spin fermions forms a polaronic quasiparticle. The associated quasiparticle weight vanishes beyond a critical strength of the attractive interaction, where a many-body bound state is formed. From a variationa...<br/>[Phys. Rev. A 80, 053605] Published Fri Nov 06, 2009 M. Punk, P. T. Dumitrescu, and W. Zwerger 2009-11-06T00:00:00-05:00 Personal use only, all commercial or other reuse prohibited 10.1103/PhysRevA.80.053605 Phys. Rev. A 80, 053605 text/html article Physical Review A 80 5 2009-11-06T00:00:00-05:00 053605 Matter waves and collective properties of cold atoms and molecules Matter waves and collective properties of cold atoms and molecules http://link.aps.org/doi/10.1103/PhysRevA.80.053604 Author(s): Yurii Slyusarenko and Andrii Sotnikov<br/>We study the temperature dependence of optical properties of dilute gases of alkali-metal atoms in the state with Bose-Einstein condensates. The description is constructed in the framework of the microscopic approach that is based on the Green’s-functions formalism. We find the expressions for the...<br/>[Phys. Rev. A 80, 053604] Published Fri Nov 06, 2009 Yurii Slyusarenko and Andrii Sotnikov 2009-11-06T00:00:00-05:00 Personal use only, all commercial or other reuse prohibited 10.1103/PhysRevA.80.053604 Phys. Rev. A 80, 053604 text/html article Physical Review A 80 5 2009-11-06T00:00:00-05:00 053604 Matter waves and collective properties of cold atoms and molecules Matter waves and collective properties of cold atoms and molecules http://link.aps.org/doi/10.1103/PhysRevA.80.053405 Author(s): XinYan Jia, WeiDong Li, Jie Liu, and J. Chen<br/>The alignment-dependent nonsequential double ionization (NSDI) of diatomic molecule N_{2} in intense fields is studied using the S -matrix theory. Our results show that the valence orbitals play an important role in alignment-dependent NSDI process: in addition to the contribution from the outmost 1...<br/>[Phys. Rev. A 80, 053405] Published Fri Nov 06, 2009 XinYan Jia, WeiDong Li, Jie Liu, and J. Chen 2009-11-06T00:00:00-05:00 Personal use only, all commercial or other reuse prohibited 10.1103/PhysRevA.80.053405 Phys. Rev. A 80, 053405 text/html article Physical Review A 80 5 2009-11-06T00:00:00-05:00 053405 Atomic and molecular processes in external fields, including interactions with strong fields and short pulses Atomic and molecular processes in external fields, including interactions with strong fields and short pulses http://link.aps.org/doi/10.1103/PhysRevA.80.053404 Author(s): Kai-Jun Yuan and André D. Bandrauk<br/>We numerically investigate the dynamics of recollision of an electron in high-order harmonic generation (HHG) for an H atom and a molecular ion H _{2} ^{+} using a short (ten optical cycles), and intense (I_{0} ≥10^{14}  W/cm^{2} ) , z -polarized linear laser pulse with wavelength 800 nm by accu...<br/>[Phys. Rev. A 80, 053404] Published Fri Nov 06, 2009 Kai-Jun Yuan and André D. Bandrauk 2009-11-06T00:00:00-05:00 Personal use only, all commercial or other reuse prohibited 10.1103/PhysRevA.80.053404 Phys. Rev. A 80, 053404 text/html article Physical Review A 80 5 2009-11-06T00:00:00-05:00 053404 Atomic and molecular processes in external fields, including interactions with strong fields and short pulses Atomic and molecular processes in external fields, including interactions with strong fields and short pulses http://link.aps.org/doi/10.1103/PhysRevA.80.052704 Author(s): Hema Munjal and K. L. Baluja<br/>Differential, integral, and momentum-transfer cross sections for the elastic scattering of electrons by SiF_{2} have been calculated for the incident electron energy range of 0–10 eV. These results are obtained by using the R -matrix method. The close-coupling expansion of the wave function of the...<br/>[Phys. Rev. A 80, 052704] Published Fri Nov 06, 2009 Hema Munjal and K. L. Baluja 2009-11-06T00:00:00-05:00 Personal use only, all commercial or other reuse prohibited 10.1103/PhysRevA.80.052704 Phys. Rev. A 80, 052704 text/html article Physical Review A 80 5 2009-11-06T00:00:00-05:00 052704 Atomic and molecular collisions and interactions Atomic and molecular collisions and interactions http://link.aps.org/doi/10.1103/PhysRevA.80.052703 Author(s): S. Blatt, J. W. Thomsen, G. K. Campbell, A. D. Ludlow, M. D. Swallows, M. J. Martin, M. M. Boyd, and J. Ye<br/>We investigate the influence of atomic motion on precision Rabi spectroscopy of ultracold fermionic atoms confined in a deep one-dimensional optical lattice. We analyze the spectral components of longitudinal sideband spectra and present a model to extract information about the transverse motion and...<br/>[Phys. Rev. A 80, 052703] Published Fri Nov 06, 2009 S. Blatt, J. W. Thomsen, G. K. Campbell, A. D. Ludlow, M. D. Swallows, M. J. Martin, M. M. Boyd, and J. Ye 2009-11-06T00:00:00-05:00 Personal use only, all commercial or other reuse prohibited 10.1103/PhysRevA.80.052703 Phys. Rev. A 80, 052703 text/html article Physical Review A 80 5 2009-11-06T00:00:00-05:00 052703 Atomic and molecular collisions and interactions Atomic and molecular collisions and interactions http://link.aps.org/doi/10.1103/PhysRevA.80.052306 Author(s): Miguel Navascués, Masaki Owari, and Martin B. Plenio<br/>In this paper, we present progress on the study of the symmetric extension criterion for separability. First, we show that a perturbation of order O(1/N) is sufficient and, in general, necessary to destroy the entanglement of any state admitting an N Bose-symmetric extension. On the other hand, the ...<br/>[Phys. Rev. A 80, 052306] Published Fri Nov 06, 2009 Miguel Navascués, Masaki Owari, and Martin B. Plenio 2009-11-06T00:00:00-05:00 Personal use only, all commercial or other reuse prohibited 10.1103/PhysRevA.80.052306 Phys. Rev. A 80, 052306 text/html article Physical Review A 80 5 2009-11-06T00:00:00-05:00 052306 Quantum information Quantum information http://link.aps.org/doi/10.1103/PhysRevA.80.050301 Author(s): Salvatore M. Giampaolo and Fabrizio Illuminati<br/>We introduce quantum spin models whose ground states allow for sizable entanglement between distant spins. We discuss how spin models with global end-to-end entanglement realize quantum teleportation channels with optimal compromise between scalability and resilience to thermal decoherence and can b...<br/><img src="http://prola.aps.org/graphics/rapid30x30.gif" width="30" height="30" alt="Rapid Communication"/><br/>[Phys. Rev. A 80, 050301] Published Fri Nov 06, 2009 Salvatore M. Giampaolo and Fabrizio Illuminati 2009-11-06T00:00:00-05:00 Personal use only, all commercial or other reuse prohibited 10.1103/PhysRevA.80.050301 Phys. Rev. A 80, 050301 text/html article Physical Review A 80 5 2009-11-06T00:00:00-05:00 050301 Quantum information Quantum information http://link.aps.org/doi/10.1103/PhysRevA.80.053807 Author(s): M. A. Vincenti, D. de Ceglia, V. Rondinone, A. Ladisa, A. D’Orazio, M. J. Bloemer, and M. Scalora<br/>We study the influence of gain on negative refraction and super-resolution in transparent resonant metal-dielectric photonic band gap structures in the visible and near infrared ranges. We find that while the introduction of gain can compensate for losses caused by the excitation of surface waves, i...<br/>[Phys. Rev. A 80, 053807] Published Thu Nov 05, 2009 M. A. Vincenti, D. de Ceglia, V. Rondinone, A. Ladisa, A. D’Orazio, M. J. Bloemer, and M. Scalora 2009-11-05T00:00:00-05:00 Personal use only, all commercial or other reuse prohibited 10.1103/PhysRevA.80.053807 Phys. Rev. A 80, 053807 text/html article Physical Review A 80 5 2009-11-05T00:00:00-05:00 053807 Quantum optics, physics of lasers, nonlinear optics, classical optics Quantum optics, physics of lasers, nonlinear optics, classical optics http://link.aps.org/doi/10.1103/PhysRevA.80.053403 Author(s): Madalina Boca and Viorica Florescu<br/>We investigate the scattering of intense laser radiation on free electrons using a semiclassical relativistic approach. The laser field is described as an ideal pulse with a finite duration, a fixed direction of propagation, and indefinitely extended in the plane perpendicular to it. This allows the...<br/>[Phys. Rev. A 80, 053403] Published Thu Nov 05, 2009 Madalina Boca and Viorica Florescu 2009-11-05T00:00:00-05:00 Personal use only, all commercial or other reuse prohibited 10.1103/PhysRevA.80.053403 Phys. Rev. A 80, 053403 text/html article Physical Review A 80 5 2009-11-05T00:00:00-05:00 053403 Atomic and molecular processes in external fields, including interactions with strong fields and short pulses Atomic and molecular processes in external fields, including interactions with strong fields and short pulses http://link.aps.org/doi/10.1103/PhysRevA.80.052702 Author(s): Christopher Ticknor<br/>We characterize the long-range dipolar scattering in two dimensions. We use the analytic zero energy wave function including the dipolar interaction; this solution yields universal dipolar scattering properties in the threshold regime. We also study the semiclassical dipolar scattering and find univ...<br/>[Phys. Rev. A 80, 052702] Published Thu Nov 05, 2009 Christopher Ticknor 2009-11-05T00:00:00-05:00 Personal use only, all commercial or other reuse prohibited 10.1103/PhysRevA.80.052702 Phys. Rev. A 80, 052702 text/html article Physical Review A 80 5 2009-11-05T00:00:00-05:00 052702 Atomic and molecular collisions and interactions Atomic and molecular collisions and interactions http://link.aps.org/doi/10.1103/PhysRevA.80.052502 Author(s): M. Ruggenthaler and D. Bauer<br/>From the local force equation of quantum mechanics and by expanding the interacting wave function in terms of the noninteracting Kohn-Sham wave function, we derive differential equations defining the local Hartree-exchange and the local correlation potential of density functional theory. The derived...<br/>[Phys. Rev. A 80, 052502] Published Thu Nov 05, 2009 M. Ruggenthaler and D. Bauer 2009-11-05T00:00:00-05:00 Personal use only, all commercial or other reuse prohibited 10.1103/PhysRevA.80.052502 Phys. Rev. A 80, 052502 text/html article Physical Review A 80 5 2009-11-05T00:00:00-05:00 052502 Atomic and molecular structure and dynamics Atomic and molecular structure and dynamics http://link.aps.org/doi/10.1103/PhysRevA.80.052103 Author(s): Jeremy Moix, Eli Pollak, and Jiushu Shao<br/>A generalized time-dependent perturbation theory is derived for superoperators. Instead of using the “standard” breakup of the Hamiltonian into a known zeroth order term and a correction, we use the approximate superpropagator to define the correction superoperator which is then used to obtain a...<br/>[Phys. Rev. A 80, 052103] Published Thu Nov 05, 2009 Jeremy Moix, Eli Pollak, and Jiushu Shao 2009-11-05T00:00:00-05:00 Personal use only, all commercial or other reuse prohibited 10.1103/PhysRevA.80.052103 Phys. Rev. A 80, 052103 text/html article Physical Review A 80 5 2009-11-05T00:00:00-05:00 052103 Fundamental concepts Fundamental concepts http://link.aps.org/doi/10.1103/PhysRevA.80.052102 Author(s): Mario Ziman, Teiko Heinosaari, and Michal Sedlák<br/>The goal of comparison is to reveal the difference of compared objects as fast and reliably as possible. In this paper we formulate and investigate the unambiguous comparison of unknown quantum measurements represented by nondegenerate sharp positive operator valued measures. We distinguish between ...<br/>[Phys. Rev. A 80, 052102] Published Thu Nov 05, 2009 Mario Ziman, Teiko Heinosaari, and Michal Sedlák 2009-11-05T00:00:00-05:00 Personal use only, all commercial or other reuse prohibited 10.1103/PhysRevA.80.052102 Phys. Rev. A 80, 052102 text/html article Physical Review A 80 5 2009-11-05T00:00:00-05:00 052102 Fundamental concepts Fundamental concepts http://link.aps.org/doi/10.1103/PhysRevA.80.053806 Author(s): D. C. Heinecke, A. Bartels, T. M. Fortier, D. A. Braje, L. Hollberg, and S. A. Diddams<br/>The high power per mode of a recently developed 10 GHz femtosecond Ti:sapphire frequency comb permits nonlinear Doppler-free saturation spectroscopy in ^{87} Rb with a single mode of the comb. We use this access to the natural linewidth of the rubidium D_{2} line to effectively stabilize the optical...<br/>[Phys. Rev. A 80, 053806] Published Wed Nov 04, 2009 D. C. Heinecke, A. Bartels, T. M. Fortier, D. A. Braje, L. Hollberg, and S. A. Diddams 2009-11-04T00:00:00-05:00 Personal use only, all commercial or other reuse prohibited 10.1103/PhysRevA.80.053806 Phys. Rev. A 80, 053806 text/html article Physical Review A 80 5 2009-11-04T00:00:00-05:00 053806 Quantum optics, physics of lasers, nonlinear optics, classical optics Quantum optics, physics of lasers, nonlinear optics, classical optics http://link.aps.org/doi/10.1103/PhysRevA.80.053603 Author(s): Qiongtao Xie (谢琼涛) and Wenhua Hai (海文华)<br/>We investigate nonlinear Floquet states and quasienergies of a Bose-Einstein condensate in a double-well potential subject to a high-frequency driving field. A multiple time scale method is used to obtain the nonlinear Floquet states and quasienergies in both weak and strong nonlinearity regimes. It...<br/>[Phys. Rev. A 80, 053603] Published Wed Nov 04, 2009 Qiongtao Xie (谢琼涛) and Wenhua Hai (海文华) 2009-11-04T00:00:00-05:00 Personal use only, all commercial or other reuse prohibited 10.1103/PhysRevA.80.053603 Phys. Rev. A 80, 053603 text/html article Physical Review A 80 5 2009-11-04T00:00:00-05:00 053603 Matter waves and collective properties of cold atoms and molecules Matter waves and collective properties of cold atoms and molecules http://link.aps.org/doi/10.1103/PhysRevA.80.053202 Author(s): Tatsufumi Nakamura, Yuji Fukuda, and Yasuaki Kishimoto<br/>Interactions of x-ray free-electron laser (XFEL) light with a single cluster target are numerically investigated by using a three-dimensional particle-in-cell code. The plasma dynamics as well as relevant atomic processes are taken into account, such as photoionization, the Auger effect, collisional...<br/>[Phys. Rev. A 80, 053202] Published Wed Nov 04, 2009 Tatsufumi Nakamura, Yuji Fukuda, and Yasuaki Kishimoto 2009-11-04T00:00:00-05:00 Personal use only, all commercial or other reuse prohibited 10.1103/PhysRevA.80.053202 Phys. Rev. A 80, 053202 text/html article Physical Review A 80 5 2009-11-04T00:00:00-05:00 053202 Clusters (including fullerenes) Clusters (including fullerenes) http://link.aps.org/doi/10.1103/PhysRevA.80.052701 Author(s): X. R. Zou, J. X. Shao, X. M. Chen, Y. Cui, Z. M. Gao, Y. Z. Yin, B. W. Ding, Z. Li, and D. Y. Yu<br/>Target ionization and projectile charge changing were investigated for 20–500 keV/u C^{q+} , O^{q+} +He (q=1–3) collisions. Double- to single-ionization ratios R_{21} of helium associated with no projectile charge change (direct ionization), single-electron capture, and single-electron loss were...<br/>[Phys. Rev. A 80, 052701] Published Wed Nov 04, 2009 X. R. Zou, J. X. Shao, X. M. Chen, Y. Cui, Z. M. Gao, Y. Z. Yin, B. W. Ding, Z. Li, and D. Y. Yu 2009-11-04T00:00:00-05:00 Personal use only, all commercial or other reuse prohibited 10.1103/PhysRevA.80.052701 Phys. Rev. A 80, 052701 text/html article Physical Review A 80 5 2009-11-04T00:00:00-05:00 052701 Atomic and molecular collisions and interactions Atomic and molecular collisions and interactions http://link.aps.org/doi/10.1103/PhysRevA.80.052501 Author(s): B. A. Kniehl, A. V. Kotikov, and O. L. Veretin<br/>Recently, the O(α) and O(α^{3}  ln α) radiative corrections to the orthopositronium lifetime have been presented in closed analytical form, in terms of basic irrational numbers that can be evaluated numerically to arbitrary precision [B. A. Kniehl, A. V. Kotikov, and O. L. Veretin, Phys. Rev....<br/>[Phys. Rev. A 80, 052501] Published Wed Nov 04, 2009 B. A. Kniehl, A. V. Kotikov, and O. L. Veretin 2009-11-04T00:00:00-05:00 Personal use only, all commercial or other reuse prohibited 10.1103/PhysRevA.80.052501 Phys. Rev. A 80, 052501 text/html article Physical Review A 80 5 2009-11-04T00:00:00-05:00 052501 Atomic and molecular structure and dynamics Atomic and molecular structure and dynamics http://link.aps.org/doi/10.1103/PhysRevA.80.052305 Author(s): Boris F. Samsonov<br/>The necessary and sufficient conditions for minimization of the generalized rate error for discriminating among N pure qubit states are reformulated in terms of Bloch vectors representing the states. For the direct optimization problem, an algorithmic solution to these conditions is indicated. A sol...<br/>[Phys. Rev. A 80, 052305] Published Wed Nov 04, 2009 Boris F. Samsonov 2009-11-04T00:00:00-05:00 Personal use only, all commercial or other reuse prohibited 10.1103/PhysRevA.80.052305 Phys. Rev. A 80, 052305 text/html article Physical Review A 80 5 2009-11-04T00:00:00-05:00 052305 Quantum information Quantum information http://link.aps.org/doi/10.1103/PhysRevA.80.052304 Author(s): Animesh Datta<br/>We calculate the quantum discord between two free modes of a scalar field, which start in a maximally entangled state and then undergo a relative constant acceleration. In a regime where there is no distillable entanglement due to the Unruh effect, we show that there is a finite amount of quantum di...<br/>[Phys. Rev. A 80, 052304] Published Wed Nov 04, 2009 Animesh Datta 2009-11-04T00:00:00-05:00 Personal use only, all commercial or other reuse prohibited 10.1103/PhysRevA.80.052304 Phys. Rev. A 80, 052304 text/html article Physical Review A 80 5 2009-11-04T00:00:00-05:00 052304 Quantum information Quantum information http://link.aps.org/doi/10.1103/PhysRevA.80.052101 Author(s): Masafumi Seriu and Chun-Hsien Wu<br/>Quantum fluctuations of an electromagnetic vacuum are investigated in a half-space bounded by a perfectly reflecting plate by introducing a probe described by a charged wave-packet distribution in time direction. The wave-packet distribution of the probe enables one to investigate the smearing effec...<br/>[Phys. Rev. A 80, 052101] Published Wed Nov 04, 2009 Masafumi Seriu and Chun-Hsien Wu 2009-11-04T00:00:00-05:00 Personal use only, all commercial or other reuse prohibited 10.1103/PhysRevA.80.052101 Phys. Rev. A 80, 052101 text/html article Physical Review A 80 5 2009-11-04T00:00:00-05:00 052101 Fundamental concepts Fundamental concepts http://link.aps.org/doi/10.1103/PhysRevA.80.051601 Author(s): J. A. M. Huhtamäki, T. P. Simula, M. Kobayashi, and K. Machida<br/>We propose methods to create fractional vortices in the cyclic state of an F=2 spinor Bose-Einstein condensate by manipulating its internal spin structure using pulsed microwave and laser fields. The stability of such vortices is studied as a function of the rotation frequency of the confining harmo...<br/><img src="http://prola.aps.org/graphics/rapid30x30.gif" width="30" height="30" alt="Rapid Communication"/><br/>[Phys. Rev. A 80, 051601] Published Wed Nov 04, 2009 J. A. M. Huhtamäki, T. P. Simula, M. Kobayashi, and K. Machida 2009-11-04T00:00:00-05:00 Personal use only, all commercial or other reuse prohibited 10.1103/PhysRevA.80.051601 Phys. Rev. A 80, 051601 text/html article Physical Review A 80 5 2009-11-04T00:00:00-05:00 051601 Matter waves and collective properties of cold atoms and molecules Matter waves and collective properties of cold atoms and molecules http://link.aps.org/doi/10.1103/PhysRevA.80.050702 Author(s): C. Beilmann, O. Postavaru, L. H. Arntzen, R. Ginzel, C. H. Keitel, V. Mäckel, P. H. Mokler, M. C. Simon, H. Tawara, I. I. Tupitsyn, J. Ullrich, J. R. Crespo López-Urrutia, and Z. Harman<br/>We report the observation of trielectronic recombination with simultaneous excitation of a K -shell and an L -shell electron, hence involving three active electrons. This process was identified in the x-ray emission spectrum of recombining highly charged Kr ions. An energy resolution three times hig...<br/><img src="http://prola.aps.org/graphics/rapid30x30.gif" width="30" height="30" alt="Rapid Communication"/><br/>[Phys. Rev. A 80, 050702] Published Wed Nov 04, 2009 C. Beilmann, O. Postavaru, L. H. Arntzen, R. Ginzel, C. H. Keitel, V. Mäckel, P. H. Mokler, M. C. Simon, H. Tawara, I. I. Tupitsyn, J. Ullrich, J. R. Crespo López-Urrutia, and Z. Harman 2009-11-04T00:00:00-05:00 Personal use only, all commercial or other reuse prohibited 10.1103/PhysRevA.80.050702 Phys. Rev. A 80, 050702 text/html article Physical Review A 80 5 2009-11-04T00:00:00-05:00 050702 Atomic and molecular collisions and interactions Atomic and molecular collisions and interactions http://link.aps.org/doi/10.1103/PhysRevA.80.053805 Author(s): R. El-Ganainy, D. N. Christodoulides, E. M. Wright, W. M. Lee, and K. Dholakia<br/>We show that many-body effects in stabilized nanocolloidal suspensions can have a profound effect on their optical nonlinearity. By considering the screened Coulomb repulsions between nanoparticles, we find that the nonlinear optical behavior of these colloids can range from polynomial to exponentia...<br/>[Phys. Rev. A 80, 053805] Published Tue Nov 03, 2009 R. El-Ganainy, D. N. Christodoulides, E. M. Wright, W. M. Lee, and K. Dholakia 2009-11-03T00:00:00-05:00 Personal use only, all commercial or other reuse prohibited 10.1103/PhysRevA.80.053805 Phys. Rev. A 80, 053805 text/html article Physical Review A 80 5 2009-11-03T00:00:00-05:00 053805 Quantum optics, physics of lasers, nonlinear optics, classical optics Quantum optics, physics of lasers, nonlinear optics, classical optics http://link.aps.org/doi/10.1103/PhysRevA.80.053804 Author(s): Kimmo Saastamoinen, Jari Turunen, Pasi Vahimaa, and Ari T. Friberg<br/>Polychromatic propagation-invariant fields (localized waves) with variable spectral coherence properties are considered. A bridge is provided between coherent propagation-invariant pulses, including Bessel pulses, X-waves and focus wave modes, and stationary polychromatic propagation-invariant field...<br/>[Phys. Rev. A 80, 053804] Published Tue Nov 03, 2009 Kimmo Saastamoinen, Jari Turunen, Pasi Vahimaa, and Ari T. Friberg 2009-11-03T00:00:00-05:00 Personal use only, all commercial or other reuse prohibited 10.1103/PhysRevA.80.053804 Phys. Rev. A 80, 053804 text/html article Physical Review A 80 5 2009-11-03T00:00:00-05:00 053804 Quantum optics, physics of lasers, nonlinear optics, classical optics Quantum optics, physics of lasers, nonlinear optics, classical optics http://link.aps.org/doi/10.1103/PhysRevA.80.053803 Author(s): Andrea Armaroli, Stefano Trillo, and Andrea Fratalocchi<br/>We investigate the impact of nonlocality, owing to diffusive behavior, on transverse instabilities of a dark stripe propagating in a defocusing cubic medium. The nonlocal response turns out to have a strongly stabilizing effect both in the case of a single soliton input and in the regime where dispe...<br/>[Phys. Rev. A 80, 053803] Published Tue Nov 03, 2009 Andrea Armaroli, Stefano Trillo, and Andrea Fratalocchi 2009-11-03T00:00:00-05:00 Personal use only, all commercial or other reuse prohibited 10.1103/PhysRevA.80.053803 Phys. Rev. A 80, 053803 text/html article Physical Review A 80 5 2009-11-03T00:00:00-05:00 053803 Quantum optics, physics of lasers, nonlinear optics, classical optics Quantum optics, physics of lasers, nonlinear optics, classical optics http://link.aps.org/doi/10.1103/PhysRevA.80.053602 Author(s): Gentaro Watanabe, F. Dalfovo, F. Piazza, L. P. Pitaevskii, and S. Stringari<br/>We investigate the problem of an ultracold atomic gas in the superfluid phase flowing in the presence of a potential barrier or a periodic potential. We use a hydrodynamic scheme in the local density approximation (LDA) to obtain an analytic expression for the critical current as a function of the b...<br/>[Phys. Rev. A 80, 053602] Published Tue Nov 03, 2009 Gentaro Watanabe, F. Dalfovo, F. Piazza, L. P. Pitaevskii, and S. Stringari 2009-11-03T00:00:00-05:00 Personal use only, all commercial or other reuse prohibited 10.1103/PhysRevA.80.053602 Phys. Rev. A 80, 053602 text/html article Physical Review A 80 5 2009-11-03T00:00:00-05:00 053602 Matter waves and collective properties of cold atoms and molecules Matter waves and collective properties of cold atoms and molecules http://link.aps.org/doi/10.1103/PhysRevA.80.053402 Author(s): Michael Spanner, Ignacio Franco, and Paul Brumer<br/>The quantum-to-classical transition of a symmetry-breaking coherent control scenario is computationally demonstrated in an optical lattice arrangement. Control is shown to survive in the classical limit and, for small effective ℏ , to be comparable in magnitude to quantum control. Moderate decoher...<br/>[Phys. Rev. A 80, 053402] Published Tue Nov 03, 2009 Michael Spanner, Ignacio Franco, and Paul Brumer 2009-11-03T00:00:00-05:00 Personal use only, all commercial or other reuse prohibited 10.1103/PhysRevA.80.053402 Phys. Rev. A 80, 053402 text/html article Physical Review A 80 5 2009-11-03T00:00:00-05:00 053402 Atomic and molecular processes in external fields, including interactions with strong fields and short pulses Atomic and molecular processes in external fields, including interactions with strong fields and short pulses