Browsing Fakultät für Mathematik und Physik by Title

Browsing Fakultät für Mathematik und Physik by Title

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  • Noise enhancement due to quantum coherence in coupled quantum dots 
    Kießlich, G.; Schöll, E.; Brandes, T.; Hohls, Frank; Haug, Rolf J. (College Park, MD : American Physical Society, 2007)
    We show that the intriguing observation of noise enhancement in the charge transport through two vertically coupled quantum dots can be explained by the interplay of quantum coherence and strong Coulomb blockade. We ...
  • Noise Investigation on the LISA-Pathfinder Optical Bench Ground Setup 
    Wittchen, Andreas (Hannover : Gottfried Wilhelm Leibniz Universität, 2013-11-12)
    The subject of this thesis is noise investigations on the LISA Pathfinder OMS ground setup. LISA Pathfinder (LPF) is a planned ESA technology demonstration space- mission, the LPF spacecraft features an optical measurement ...
  • Noise measurement of a quantized charge pump 
    Maire, Niels; Hohls, Frank; Kaestner, Bernd; Pierz, Klaus; Schumacher, Hans W.; Haug, Rolf J. (College Park, MD : American Institute of Physics, 2008)
    We study the noise properties of a gate controlled single electron pump at a driving frequency fp =400 MHz. We observe a significant reduction of the noise power on the current plateaus. This is a strong indication for ...
  • Non(anti)commutative gauge theories in harmonic superspace 
    Quevedo Z., Leonardo E. (Hannover : Gottfried Wilhelm Leibniz Universität Hannover, 2006)
    [no abstract]
  • Non-Abelian atom optics 
    Jacob, Andreas (Hannover : Gottfried Wilhelm Leibniz Universität Hannover, 2009)
    [no abstract]
  • Non-Abelian quasi-particles in electronic systems 
    Borcherding, Daniel (Hannover : Institutionelles Repositorium der Leibniz Universität Hannover, 2018)
    Ever since the proposal of Kitaev for decoherence-free quantum computing based on non-Abelian anyons physical realizations of these exotic particles have been investigated extensively. Starting from one-dimensional models ...
  • Non-Abelian sigma models from Yang–Mills theory compactified on a circle 
    Ivanova, Tatiana A.; Lechtenfeld, Olaf; Popov, Alexander D. (Amsterdam : Elsevier B.V., 2018)
    We consider SU(N) Yang–Mills theory on R2,1×S1, where S1 is a spatial circle. In the infrared limit of a small-circle radius the Yang–Mills action reduces to the action of a sigma model on R2,1 whose target space is a ...
  • Non-classical state engineering for quantum networks 
    Vollmer, Christina E. (Hannover : Gottfried Wilhelm Leibniz Universität Hannover, 2014)
    [no abstract]
  • Non-collinear optical parametric oscillator for stimulated Raman spectroscopy in real-time 
    Beichert, Luise (Hannover : Institutionelles Repositorium der Leibniz Universität Hannover, 2023)
    Stimulated Raman spectroscopy is a powerful chemical analysis technique that provides information about the investigated material composition by selectively stimulating a molecular vibrational transition. Like a fingerprint, ...
  • Non-equilibrium dynamics and quantum magnetism in 1D optical lattices 
    Rodríguez, Karen (Hannover : Gottfried Wilhelm Leibniz Universität Hannover, 2011)
    [no abstract]
  • Non-equilibrium dynamics of dipolar polarons 
    Volosniev, Artem G.; Bighin, Giacomo; Santos, Luis; Peña Ardila, Luisllu A. (Amsterdam : SciPost Foundation, 2023)
    We study the out-of-equilibrium quantum dynamics of dipolar polarons, i.e., impurities immersed in a dipolar Bose-Einstein condensate, after a quench of the impurity-boson interaction. We show that the dipolar nature of ...
  • Non-equilibrium spin noise spectroscopy of a single quantum dot operating at fiber telecommunication wavelengths 
    Sun, Tian-Jiao; Sterin, P.; Lengert, L.; Nawrath, C.; Jetter, M.; Michler, P.; Ji, Yang; Hübner, J.; Oestreich, M. (Melville, NY : American Inst. of Physics, 2022)
    We report on the spin and occupation noise of a single, positively charged (InGa)As quantum dot emitting photons in the telecommunication C-band. The spin noise spectroscopy measurements are carried out at a temperature ...
  • Non-geometric tilt-to-length coupling in precision interferometry: mechanisms and analytical descriptions 
    Hartig, Marie-Sophie; Schuster, Sönke; Heinzel, Gerhard; Wanner, Gudrun (Bristol : IOP Publ., 2023)
    This paper is the second in a set of two investigating tilt-to-length (TTL) coupling. TTL describes the cross-coupling of angular or translational jitter into an interferometric phase signal and is an important noise source ...
  • Non-linear phenomena in dipolar Bose-Einstein condensates 
    Gopinathan Rejani, Rejish Nath (Hannover : Gottfried Wilhelm Leibniz Universität Hannover, 2009)
    [no abstract]
  • Non-natural ruthenium isotope ratios of the undeclared 2017 atmospheric release consistent with civilian nuclear activities 
    Hopp, Timo; Zok, Dorian; Kleine, Thorsten; Steinhauser, Georg ([London] : Nature Publishing Group UK, 2020)
    Understanding the circumstances of the undeclared 2017 nuclear release of ruthenium that led to widespread detections of the radioisotope 106Ru in the Eurasian region, and whether it derives from a civilian or military ...
  • Non-negative global weak solutions for a degenerate parabolic system modelling thin films driven by capillarity 
    Matioc, Bogdan-Vasile (Cambridge : Cambridge University Press, 2012)
    We prove the global existence of non-negative weak solutions for a strongly coupled, fourth-order degenerate parabolic system governing the motion of two thin fluid layers in a porous medium when capillarity is the sole ...
  • Non-perturbative semiclassical model for strong-field ionization 
    Shvetsov-Shilovski, N.I.; Lein, M.; Madsen, L.B.; Räsänen, E.; Lemell, C.; Burgdörfer, J.; Arbó, D.G.; Tkési, K. (Bristol : Institute of Physics Publishing, 2017)
    Synopsis We present a non-perturbative semiclassical model for strong-field ionization that accounts for path interferences of tunnel-ionized electrons in the ionic potential within the framework of a classical trajectory ...
  • Noncommutative baby Skyrmions 
    Ioannidou, Theodora; Lechtenfeld, Olaf (Trieste : International School for Advanced Studies, 2010)
    A class of exact analytic noncommutative baby Skyrmions is obtained. The corresponding configurations have singular commutative limit but are stable against scaling due to the noncommutativity. We compute their energies, ...
  • Noncommutative baby Skyrmions 
    Ioannidou, Theodora; Lechtenfeld, Olaf (Amsterdam : Elsevier, 2009)
    We subject the baby Skyrme model to a Moyal deformation, for unitary or Grassmannian target spaces and without a potential term. In the Abelian case, the radial BPS configurations of the ordinary noncommutative sigma model ...
  • Noncommutative deformation of the Ward metric 
    Goffeng, Magnus; Lechtenfeld, Olaf (Trieste : International School for Advanced Studies, 2011)
    The moduli-space metric in the static non-Abelian charge-two sector of the Moyal-deformed CP1 sigma model in 1+2 dimensions is analyzed. After recalling the commutative results of Ward and Ruback and the ?-regularized ...

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