Auflistung nach Schlagwort "Physics"

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  • Assessing prior knowledge types as predictors of academic achievement in the introductory phase of biology and physics study programmes using logistic regression 
    Binder, Torsten; Sandmann, Angela; Sures, Bernd; Friege, Gunnar; Theyssen, Heike; Schmiemann, Philipp (Heidelberg : Springer Verlag, 2019)
    Background: Increasingly, high dropout rates in science courses at colleges and universities have led to discussions of causes and potential support measures of students. Students’ prior knowledge is repeatedly mentioned ...
  • Calibrating LISA Pathfinder raw data into femto-g differential accelerometry 
    Vetrugno, D.; Karnesis, N. (Bristol : Institute of Physics Publishing, 2017)
    LISA Pathfinder is an in-flight test of the local sources of acceleration noise in LISA. The acceleration noise level in LISA Pathfinder is measured by the residual differential acceleration Δg between the two test masses ...
  • Coherent cancellation of backaction noise in optomechanical force measurements 
    Wimmer, Maximilian H.; Steinmeyer, Daniel; Hammerer, Klemens; Heurs, Michèle (College Park, MD : American Physical Society, 2014)
    Optomechanical detectors have reached the standard quantum limit in position and force sensing where measurement backaction noise starts to be the limiting factor for the sensitivity. A strategy to circumvent measurement ...
  • Constraining spacetime nonmetricity with Lorentz-violation methods 
    Xiao, Zhi; Lehnert, Ralf; Snow, W.M.; Xu, Rui (Bristol : Institute of Physics Publishing, 2018)
    In this report, we will give the first constraints on in-matter nonmetricity. We will show how the effective-field-theory (EFT) toolbox developed for the study of Lorentz violation (LV) can be employed for investigations ...
  • Correlation between total pressure losses of highly loaded annular diffusers and integral stage design parameters 
    Mimic, Dajan; Jätz, Christoph; Herbst, Florian (Zug : GPPS, 2018)
    Diffusers convert kinetic flow energy into a rise in static pressure. This pressure recovery is the primary aerodynamic design objective for exhaust gas diffusers in power-generating steam and gas turbines. The total ...
  • Corrigendum: Detection of motional ground state population using delayed pulses (2016 New J. Phys. 18 013037) 
    Gebert, Florian; Wan, Yong; Wolf, Fabian; Heip, Jan C.; Schmidt, Piet O. (Bristol : IOP Publishing Ltd., 2018)
    [No abstract available]
  • Curved WDVV equation and supersymmetric mechanics 
    Kozyrev, N.; Krivonos, S.; Lechtenfeld, O.; Nersessian, A.; Sutulin, A. (Bristol : Institute of Physics Publishing, 2018)
    We extend the relation between the Witten-Dijkgraaf-Verlinde-Verlinde equation and N = 4 supersymmetric mechanics to arbitrary curved spaces. The resulting curved WDVV equation is written in terms of the third rank Codazzi ...
  • Design and construction of an optical test bed for LISA imaging systems and tilt-to-length coupling 
    Chwalla, M.; Danzmann, Karsten; Fernández Barranco, G.; Fitzsimons, E.; Gerberding, Oliver; Heinzel, Gerhard; Killow, Christian J.; Lieser, M.; Perreur-Lloyd, M.; Robertson, D.I.; Schuster, Sönke; Schwarze, Thomas S.; Tröbs, M.; Ward, H.; Zwetz, M. (Bristol : IOP Publishing, 2016)
    The laser interferometer space antenna (LISA) is a future space-based interferometric gravitational-wave detector consisting of three spacecraft in a triangular configuration. The interferometric measurements of path length ...
  • Exact BPS bound for noncommutative baby Skyrmions 
    Domrin, Andrei V.; Lechtenfeld, Olaf; Linares, Román; Maceda, Marco (Amsterdam : Elsevier B.V., 2013)
    The noncommutative baby Skyrme model is a Moyal deformation of the two-dimensional sigma model plus a Skyrme term, with a group-valued or Grassmannian target. Exact abelian solitonic solutions have been identified analytically ...
  • Experimental investigation of low-frequency pulsed Lorentz force influence on the motion of Galinstan melt 
    Musaeva, Diana; Ilyin, Vladimir K.; Geža, Vadims; Baake, Egbert (Amsterdam : Elsevier B.V., 2016)
    The paper presents the results of the numerical and physical experiments, aimed at assessing the influence of pulsed force of electromagnetic field on the melt motion and the fluid velocities. The experiment was performed ...
  • Focus on gravitational quantum physics 
    Aspelmeyer, Marcus; Brukner, Časlav; Giulini, Domenico; Milburn, Gerard (Bristol : IOP Publishing Ltd., 2017)
    The interplay between quantum theory and gravity remains one of the least explored fields of physics. The current 'focus on' collection summarises experimental and theoretical results from many of the leading groups around ...
  • A framework for phase and interference in generalized probabilistic theories 
    Garner, Andrew J.P.; Dahlsten, Oscar C.O.; Nakata, Yoshifumi; Murao, Mio; Vedral, Vlatko (Bristol : Institute of Physics Publishing, 2013)
    Phase plays a crucial role in many quantum effects including interference. Here we lay the foundations for the study of phase in probabilistic theories more generally. Phase is normally defined in terms of complex numbers ...
  • Handling Handles: Nonplanar Integrability in N = 4 Supersymmetric Yang-Mills Theory 
    Bargheer, Till; Caetano, João; Fleury, Thiago; Komatsu, Shota; Vieira, Pedro (College Park (Maryland) : APS American Physical Society, 2018)
    We propose an integrability setup for the computation of correlation functions of gauge-invariant operators inN ¼ 4 supersymmetric Yang-Mills theory at higher orders in the large Nc genus expansion and at any order in the ...
  • Improved limit on the directly measured antiproton lifetime 
    Sellner, S.; Besirli, M.; Bohman, M.; Borchert, M.J.; Harrington, J.; Higuchi, T.; Mooser, A.; Nagahama, H.; Schneider, G.; Smorra, C.; Tanaka, T.; Blaum, K.; Matsuda, Y.; Ospelkaus, C.; Quint, W.; Walz, J.; Yamazaki, Y.; Ulmer, S. (Bristol : Institute of Physics Publishing, 2017)
    Continuous monitoring of a cloud of antiprotons stored in a Penning trap for 405 days enables us to set an improved limit on the directly measured antiproton lifetime. From our measurements we extract a storage time of ...
  • Improved Microtransformer Design Utilizing Fe-Co Magnetic Core 
    Dinulovic, Dragan; Gerfer, Alexander; Haug, Martin; Kaiser, Matthias; Wurz, Marc Christopher; Rissing, Lutz (Amsterdam : Elsevier, 2015)
    This paper presents the design, fabrication, and characterization of on silicon integrated micro-transformers for high frequency power applications. This device has stable characteristic of L versus f up to frequencies ...
  • Irreducible Cartesian multipole decomposition of scattered light with explicit contribution of high order toroidal moments 
    Gurvitz, E.; Ladutenko, K.; Dergachev, P.; Evlyukhin, A.; Miroshnichenko, A.; Shalin, A. (Bristol : IOP Publishing Ltd., 2020)
    Multipole decomposition is a powerful tool for analysis of electromagnetic systems. This work considers high order irreducible Cartesian multipole moments in approximation of electric 32-pole and magnetic 16-pole. The ...
  • A Laser System for Gray-Molasses Cooling on the D1 Transition of an Atomic Gas of 39K 
    Shammout, Baraa (Hannover : Gottfried Wilhelm Leibniz Universität, 2020)
    In this work we present the design and the construction of a laser system for cooling an atomic gas of potassium 39K on the D1-Line by gray molasses technique. The seed laser is an Interference-filter-stabilized external-cavity ...
  • LISA pathfinder performance confirmed in an open-loop configuration: Results from the free-fall actuation mode 
    Armano, M.; Audley, H.; Baird, J.; Binetruy, P.; Born, M.; Bortoluzzi, D.; Castelli, E.; Cavalleri, A.; Cesarini, A.; Cruise, A.M.; Danzmann, K.; De Deus Silva, M.; Diepholz, I.; Dixon, G.; Dolesi, R.; Ferraioli, L.; Ferroni, V.; Fitzsimons, E.D.; Freschi, M.; Gesa, L.; Gibert, F.; Giardini, D.; Giusteri, R.; Grimani, C.; Grzymisch, J.; Harrison, I.; Hartig, M.-S.; Heinzel, G.; Hewitson, M.; Hollington, D.; Hoyland, D.; Hueller, M.; Inchauspé, H.; Jennrich, O.; Jetzer, P.; Karnesis, N.; Kaune, B.; Korsakova, N.; Killow, C.J.; Lobo, J.A.; Liu, L.; López-Zaragoza, J.P.; Maarschalkerweerd, R.; Mance, D.; Meshksar, N.; Martín, V.; Martin-Polo, L.; Martino, J.; Martin-Porqueras, F.; Mateos, I.; McNamara, P.W.; Mendes, J.; Mendes, L.; Nofrarias, M.; Paczkowski, S.; Perreur-Lloyd, M.; Petiteau, A.; Pivato, P.; Plagnol, E.; Ramos-Castro, J.; Reiche, J.; Robertson, D.I.; Rivas, F.; Russano, G.; Slutsky, J.; Sopuerta, C.F.; Sumner, T.; Texier, D.; Thorpe, J.I.; Vetrugno, D.; Vitale, S.; Wanner, G.; Ward, H.; Wass, P.J.; Weber, W.J.; Wissel, L.; Wittchen, A.; Zweifel, P. (College Park, MD : American Physical Society, 2019)
    We report on the results of the LISA Pathfinder (LPF) free-fall mode experiment, in which the control force needed to compensate the quasistatic differential force acting on two test masses is applied intermittently as a ...
  • Mass-selective removal of ions from Paul traps using parametric excitation 
    Schmidt, Julian; Hönig, Daniel; Weckesser, Pascal; Thielemann, Fabian; Schaetz, Tobias; Karpa, Leon (Berlin ; Heidelberg : Springer, 2020)
    We study a method for mass-selective removal of ions from a Paul trap by parametric excitation. This can be achieved by applying an oscillating electric quadrupole field at twice the secular frequency ωsec using pairs of ...
  • Measurement of double-polarization asymmetries in the quasi-elastic 3He (e, e'p) process 
    Mihovilovič, M.; Jin, G.; Long, E.; Zhang, Yi; Allada, K.; Sauer, P.U.; The Jefferson Lab Hall A Collaboration; et al. (Amsterdam : Elsevier B.V., 2019)
    We report on a precise measurement of double-polarization asymmetries in electron-induced breakup of He 3 proceeding to pd and ppn final states, performed in quasi-elastic kinematics at Q 2 = 0.25 ( GeV / c ) 2 for missing ...