Auflistung Fakultät für Mathematik und Physik nach Titel

Auflistung Fakultät für Mathematik und Physik nach Titel

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  • Substrate-free miniaturized thin-film filters for single-element coarse wavelength division multiplexing fibers 
    Rüsseler, Anna K.; Gehrke, Philipp; Carstens, Florian; Hoffmann, Gerd-A.; Schönsee, Guido; Thiel, Axel; Vitt, Martina; Wienke, Andreas; Ristau, Detlev (Washington, DC : Optical Soc. of America, 2023)
    We have created high-precision, miniaturized, substrate-free filters, based on ion beam sputtering on a sacrificial substrate. The sacrificial layer is cost efficient and environmentally friendly and can be dissolved using ...
  • Subsystems for all-optical coherent quantum-noise cancellation 
    Steinmeyer, Daniel (Hannover : Institutionelles Repositorium der Leibniz Universität Hannover, 2019)
    Quantum mechanics dictates that a measurement always disturb the measured system. In weak continuous measurements, the trade-off between measurement precision and back-action onto the system yields an optimal measurement ...
  • Subwavelength population density gratings in resonant medium created by few-cycle pulses 
    Arkhipov, R.M.; Arkhipov, M.V.; Pakhomov, A.V.; Babushkin, I.; Demircan, A.; Morgner, Uwe; Rosanov, N.N. (Bristol : Institute of Physics Publishing, 2017)
    We consider theoretically recently proposed a new possibility of creation, erasing and ultrafast control of population density grating. Such grating can be created in resonant medium when ultrashort pulses with duration ...
  • Super-poissonian shot noise in tunneling through coupled self-assembled InAs quantum dots 
    Barthold, P.; Hohls, Frank; Maire, Niels; Pierz, Klaus; Haug, Rolf J. (College Park, MD : American Institute of Physics, 2007)
    We apply an external bias voltage to vertically coupled self-assembled InAs quantum dots. We observe pronounced peaks in the I-V characteristic due to resonant transport through a stack of coupled quantum dots. We investigate ...
  • Superconducting Solenoid System with Adjustable Shielding Factor for Precision Measurements of the Properties of the Antiproton 
    Devlin, Jack A.; Wursten, Elise; Harrington, James A.; Higuchi, Takashi; Blessing, Pascal E.; Borchert, Matthias J.; Erlewein, Stefan; Hansen, Jannek J.; Morgner, Jonathan; Bohman, Matthew A.; Mooser, Andreas H.; Smorra, Christian; Wiesinger, Markus; Blaum, Klaus; Matsuda, Yasuyuki; Ospelkaus, Christian; Quint, Wolfgang; Walz, Jochen; Yamazaki, Yasunori; Ulmer, Stefan (College Park, Md. [u.a.] : American Physical Society, 2019)
    A superconducting self-shielding three-solenoid system with an adjustable shielding factor is developed, implemented, and characterized using a single antiproton in a Penning trap. With the tuned system, we suppress external ...
  • Superconformal SU(1, 1|n) mechanics 
    Galajinsky, Anton; Lechtenfeld, Olaf (Heidelberg : Springer Verlag, 2016)
    Recent years have seen an upsurge of interest in dynamical realizations of the superconformal group SU(1, 1|2) in mechanics. Remarking that SU(1, 1|2) is a particular member of a chain of supergroups SU(1, 1|n) parametrized ...
  • Superfield formulation of nonlinear N=4 supermultiplets 
    Bellucci, Stefano; Krivonos, Sergey; Lechtenfeld, Olaf; Shcherbakov, Andrey (College Park (Maryland) : American Physical Society, 2008)
    We propose a unified superfield formulation of N=4 off-shell supermultiplets in one spacetime dimension using the standard N=4 superspace. The main idea of our approach is a gluing together of two linear supermultiplets ...
  • Superintegrability of generalized Calogero models with oscillator or Coulomb potential 
    Hakobyan, Tigran; Lechtenfeld, Olaf; Nersessian, Armen (College Park (Maryland) : American Physical Society, 2014)
    We deform N-dimensional (Euclidean, spherical and hyperbolic) oscillator and Coulomb systems, replacing their angular degrees of freedom by those of a generalized rational Calogero model. Using the action-angle description, ...
  • Superlattice structures in twisted bilayers of folded graphene 
    Schmidt, Hennrik; Rode, Johannes C.; Smirnov, Dmitri; Haug, Rolf J. (London : Nature Publishing Group, 2014)
    The electronic properties of bilayer graphene strongly depend on relative orientation of the two atomic lattices. Whereas Bernal-stacked graphene is most commonly studied, a rotational mismatch between layers opens up a ...
  • Supermembrane limit of Yang-Mills theory 
    Lechtenfeld, Olaf; Popov, Alexander D. (Melville, NY : AIP Publishing, 2016)
    We consider Yang-Mills theory with N = 1 super-translation group in eleven auxiliary dimensions as the structure group. The gauge theory is defined on a direct product manifold Σ3 × S1, where Σ3 is a three-dimensional ...
  • Superresolved femtosecond laser nanosurgery of cells 
    Pospiech, Matthias; Emons, Moritz; Kuetemeyer, Kai; Heisterkamp, Alexander; Morgner, Uwe (Washington, DC : Optical Society of America, 2011)
    We report on femtosecond nanosurgery of fluorescently labeled structures in cells with a spatially superresolved laser beam. The focal spot width is reduced using phase filtering applied with a programmable phase modulator. ...
  • Superstring limit of Yang-Mills theories 
    Lechtenfeld, Olaf; Popov, Alexander D. (Amsterdam : Elsevier, 2016)
    It was pointed out by Shifman and Yung that the critical superstring on X10=R4×Y6, where Y6 is the resolved conifold, appears as an effective theory for a U(2) Yang–Mills–Higgs system with four fundamental Higgs scalars ...
  • Supersymmetric AdS 7 and AdS 6 vacua and their consistent truncations with vector multiplets 
    Malek, E.; Samtleben, H.; Camell, V.V. (Heidelberg : Springer Verlag, 2019)
    Using exceptional field theory we construct supersymmetric warped AdS 7 vacua of massive IIA and AdS 6 vacua of IIB, as well as their consistent truncations including vector multiplets. We show that there are no consistent ...
  • Supersymmetric AdS(5) solutions of massive IIA supergravity 
    Apruzzi, Fabio; Fazzi, Marco; Passias, Achilleas; Tomasiello, Alessandro (New York, NY : Springer International Publishing, 2015)
    Motivated by a recently found class of AdS(7) solutions, we classify AdS(5) solutions in massive IIA, finding infinitely many new analytical examples. We reduce the general problem to a set of PDEs, determining the local ...
  • Supersymmetric Calogero models by gauging 
    Fedoruk, Sergey; Ivanov, Evgeny; Lechtenfeld, Olaf (College Park (Maryland) : American Physical Society, 2009)
    New superconformal extensions of d=1 Calogero-type systems are obtained by gauging the U(n) isometry of matrix superfield models. We consider the cases of N=1, N=2, and N=4 as one-dimensional supersymmetries. The bosonic ...
  • Supersymmetric hyperbolic Calogero-Sutherland models by gauging 
    Fedoruk, Sergey; Ivanov, Evgeny; Lechtenfeld, Olaf (Amsterdam : Elsevier B.V., 2019)
    Novel N=2 and N=4 supersymmetric extensions of the Calogero-Sutherland hyperbolic systems are obtained by gauging the U(n) isometry of matrix superfield models. The bosonic core of the N=2 models is the standard A n−1 ...
  • Supersymmetric large-order perturbation with the Nicolai map 
    Lechtenfeld, Olaf (Amsterdam [u.a.] : Elsevier, 2022)
    In rigidly supersymmetric quantum theories, the Nicolai map allows one to turn on a coupling constant (from zero to a finite value) by keeping the (free) functional integration measure but subjecting the fields to a ...
  • Supersymmetric many-body Euler–Calogero–Moser model 
    Krivonos, Sergey; Sutulin, Anton; Lechtenfeld, Olaf (Amsterdam : Elsevier B.V., 2019)
    We explicitly construct a supersymmetric $so(n)$ spin-Calogero model with an arbitrary even number $\cal N$ of supersymmetries. It features $\frac{1}{2}{\cal N}n(n{+}1)$ rather than ${\cal N}n$ fermionic coordinates and a ...
  • Supersymmetric noncommutative solitons 
    Lechtenfeld, Olaf (Bristol : IOP Publishing Ltd., 2008)
    I consider a supersymmetric Bogomolny-type model in 2+1 dimensions originating from topological string theory. By a gauge fixing this model is reduced to a supersymmetric U(n) chiral model with a Wess-Zumino-Witten-type ...
  • 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 ...

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