• Study of laser cooling in deep optical lattice: two-level quantum model 

  Prudnikov, O.N.; Il'enkov, R.Y.; Taichenachev, A.V.; Yudin, V.I.; Rasel, E.M. (Bristol : IOP Publishing LTD, 2018)

  We study a possibility of laser cooling of Mg-24 atoms in deep optical lattice formed by intense off-resonant laser field in a presence of cooling field resonant to narrow (3s3s) S-1(0) -> (3s3p) P-3(1) (lambda = 457 nm) ...
• Velocity map imaging of scattering dynamics in orthogonal two-color fields 

  Würzler, D.; Eicke, N.; Möller, M.; Seipt, D.; Sayler, A.M.; Fritzsche, S.; Lein, M.; Paulus, G.G. (Bristol : IOP PUBLISHING LTD, 2018)

  In strong-field ionization processes, two-color laser fields are frequently used for controlling subcycle electron dynamics via the relative phase of the laser fields. Here we apply this technique to velocity map imaging ...
• The Heidelberg compact electron beam ion traps 

  Micke, P.; Kuehn, S.; Buchauer, L.; Harries, J. R.; Buecking, T.M.; Blaum, K.; Cieluch, A.; Egl, A.; Hollain, D.; Kraemer, S.; Pfeifer, T.; Schmidt, P. O.; Schuessler, R.X.; Schweiger, C.; Stoehlker, T.; Sturm, S.; Wolf, R. N.; Bernitt, S.; Lopez-Urrutia, J.R. Crespo (College Park : American Institute of Physics (AIP), 2018)

  Electron beam ion traps (EBITs) are ideal tools for both production and study of highly charged ions (HCIs). In order to reduce their construction, maintenance, and operation costs, we have developed a novel, compact, ...
• Fast and accurate sensitivity estimation for continuous-gravitational-wave searches 

  Dreissigacker, Christoph; Prix, Reinhard; Wette, Karl (College Park : American Physical Society, 2018)

  This paper presents an efficient numerical sensitivity-estimation method and implementation for continuous-gravitational-wave searches, extending and generalizing an earlier analytic approach by Wette [1]. This estimation ...
• Yang-Mills solutions on de Sitter space of any dimension 

  Lechtenfeld, Olaf; Ünal, Gönül (College Park : American Physical Society, 2018)

  For gauge groups SO(n + 1), SU(m + 1), and Sp(l + 1), we construct equivariant Yang-Mills solutions on de Sitter space in n + 1, 2(m + 1), and 4(l + 1) spacetime dimensions. The latter is conformally mapped to a finite ...
• Critical Wess-Zumino models with four supercharges in the functional renormalization group approach 

  Feldmann, Polina; Wipf, Andreas; Zambelli, Luca (College Park : American Physical Society (APS), 2018)

  We analyze the N = 1 supersymmetric Wess-Zumino model dimensionally reduced to the N = 2 supersymmetric model in three Euclidean dimensions. As in the original model in four dimensions and the N = (2, 2) model in two ...
• Quantum noise cancellation in asymmetric speed metres with balanced homodyne readout 

  Zhang, T.; Knyazev, E.; Steinlechner, S.; Khalili, F.Y.; Barr, B. W.; Bell, A. S.; Dupej, P.; Briggs, J.; Graf, C.; Callaghan, J.; Hennig, J. S.; Houston, E. A.; Huttner, S. H.; Leavey, S.S.; Pascucci, D.; Sorazu, B.; Spencer, A.; Wright, J.; Strain, K.A.; Hild, S.; Danilishin, S.L. (Bristol : IOP Publishing Ltd., 2018)

  The Sagnac speed metre topology has been identified as a promising technique to reduce quantum back-action in gravitational-wave interferometers. However, imbalance of the main beamsplitter has been shown to increase the ...
• Handling handles. Part II. Stratification and data analysis 

  Bargheer, T.; Caetano, J.; Fleury, T.; Komatsu, S.; Vieira, P. (Berlin : Springer, 2018)

  In a previous work [1], we proposed an integrability setup for computing nonplanar corrections to correlation functions in N=4 super-Yang-Mills theory at any value of the coupling constant. The procedure consists of drawing ...
• Creation of entangled atomic states by an analogue of the Dynamical Casimir effect 

  Lange, K.; Peise, J.; Luecke, B.; Gruber, T.; Sala, A.; Polls, A.; Ertmer, W.; Julia-Diaz, B.; Santos, L.; Klempt, C. (Bristol : Institute of Physics Publishing (IOP), 2018)

  If the boundary conditions of the quantum vacuum are changed in time, quantum field theory predicts that real, observable particles can be created in the initially empty modes. Here, we realize this effect by changing the ...
• A windthrow model for urban trees with application to storm "Xavier" 

  Gross, Guenter (Stuttgart : Schweizerbart Science Publishers, 2018)

  A three-dimensional meteorological micro-scale model was combined with a forestry windthrow tool to study the risk of urban trees under stormy conditions. The numerical results for an isolated individual tree are compared ...
• Moduli stabilization and cosmology of type IIB on SU(2)-structure orientifolds 

  Caviezel, Claudio; Wrase, Timm; Zagermann, Marco (Heidelberg : Springer, 2010)

  We consider type IIB flux compactifications on six-dimensional SU(2)-structure manifolds with O5- and O7-planes. These six-dimensional spaces allow not only for F-3 and H-3 fluxes but also for F-1 and F-5 fluxes. We derive ...
• Investigation of droplet dynamics in a convective cloud using a Lagrangian cloud model 

  Lee, Junghwa; Noh, Yign; Raasch, Siegfried; Riechelmann, Theres; Wang, Lian-Ping (Heidelberg : Springer, 2014)

  A precipitating convective cloud is simulated successfully using the Lagrangian cloud model, in which the flow field is simulated by large eddy simulation and the droplets are treated as Lagrangian particles, and the results ...
• Atom optics with microfabricated optical elements 

  Birkl, G.; Buchkremer, F.B.J.; Dumke, R.; Ertmer, W. (Amsterdam : Elsevier, 2001)

  We introduce a new direction in the field of atom optics, atom interferometry, and neutral-atom quantum information processing. It is based on the use of microfabricated optical elements. With these elements versatile and ...
• Evidence of the Coulomb-force effects in the cross-sections of the deuteron-proton breakup at 130 MeV 

  Kistryn, S.; Stephan, E.; Klos, B.; Biegun, A.; Bodek, K.; Ciepal, I.; Deltuva, A.; Fonseca, A.C.; Kalantar-Nayestanaki, N.; Kis, M.; Kozela, A.; Mahjour-Shafiei, M.; Micherdzinska, A.; Sauer, P.U.; Sworst, R.; Zejma, J.; Zipper, W. (Amsterdam : Elsevier, 2006)

  High precision cross-section data of the deuteron-proton breakup reaction at 130 MeV deuteron energy are compared with the theoretical predictions obtained with a coupled-channel extension of the CD Bonn potential with ...
• Supertwistors and cubic string field theory for open N=2 strings 

  Lechtenfeld, Olaf; Popov, Alexander D. (Amsterdam : Elsevier, 2004)

  The known Lorentz invariant string field theory for open N = 2 strings is combined with a generalization of the twistor description of anti-self-dual (super-)Yang-Mills theories. We introduce a Chem-Simons-type Lagrangian ...
• Noncommutative multi-instantons on R-2n x S-2 

  Ivanova, Tatiana A.; Lechtenfeld, Olaf (Amsterdam : Elsevier, 2003)

  Generalizing self-duality on R-2 x S-2 to higher dimensions, we consider the Donaldson-Uhlenbeck-Yau equations on R-2n x S-2 and their noncommutative deformation for the gauge group U(2). Imposing SO(3) invariance (up to ...
• D-brane scattering of N=2 strings 

  Jünemann, Klaus; Spendig, Bernd (Amsterdam : Elsevier, 2001)

  The amplitudes for emission and scattering of N = 2 strings off D-branes are calculated. We consider in detail the amplitudes <cc> and <occ> for the different types of D-branes. For some D-branes we find massive poles in ...
• Equivariant reduction of Yang-Mills theory over the fuzzy sphere and the emergent vortices 

  Harland, Derek; Kuerkcueoglu, Seckin (Amsterdam : Elsevier, 2009)

  We consider a U(2) Yang-Mills theory on M x S(F)(2) where M is a Riemannian manifold and S(F)(2) is the fuzzy sphere. Using essentially the representation theory of SU(2) we determine the most general SU(2)equivariant gauge ...
• Instantons in six dimensions and twistors 

  Ivanova, Tatiana A.; Lechtenfeld, Olaf; Popov, Alexander D.; Tormaehlen, Maike (Amsterdam : Elsevier, 2014)

  Recently, conformal field theories in six dimensions were discussed from the twistorial point of view. In particular, it was demonstrated that the twistor transform between chiral zero-rest-mass fields and cohomology classes ...
• Four-nucleon system with Delta-isobar excitation 

  Deltuva, A.; Fonseca, A.C.; Sauer, P.U. (Amsterdam : Elsevier Science, 2008)

  The four-nucleon bound state and scattering below three-body breakup threshold are described based on the realistic coupled-channel potential CD Bonn + Delta which allows the excitation of a single nucleon to a Delta isobar. ...

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