Auflistung Fakultät für Mathematik und Physik nach Titel

Auflistung Fakultät für Mathematik und Physik nach Titel

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  • Quantum dot device tunable from single to triple dot system 
    Rogge, M.C.; Pierz, Klaus; Haug, Rolf J. (College Park, MD : American Institute of Physics, 2013)
    We present a lateral quantum dot device which has a tunable number of quantum dots. Depending on easily tunable gate voltages, one, two or three quantum dots are found. They are investigated in transport and charge detection. ...
  • Quantum dots formed in a GaAsAlGaAs quantum ring 
    Mühle, A.; Wegscheider, W.; Haug, Rolf J. (College Park, MD : American Institute of Physics, 2008)
    We demonstrate the tunability of a GaAsAlGaAs quantum ring showing coherent Aharonov-Bohm oscillations up to a gate voltage regime where the ring splits into three quantum dots. This is explained based on the structure's ...
  • Quantum engineering of squeezed states for quantum communication and metrology 
    Vahlbruch, H.; Chelkowski, S.; Danzmann, Karsten; Schnabel, R. (Bristol : IOP Publishing Ltd., 2007)
    We report the experimental realization of squeezed quantum states of light, tailored for new applications in quantum communication and metrology. Squeezed states in a broad Fourier frequency band down to 1 Hz have been ...
  • Quantum filaments in dipolar Bose-Einstein condensates 
    Wächtler, Falk (Hannover : Gottfried Wilhelm Leibniz Universität Hannover, 2016)
    [no abstract]
  • Quantum fluctuations in mixtures and dipolar systems 
    Edler, Daniel (Hannover : Institutionelles Repositorium der Leibniz Universität Hannover, 2022)
    Recent theoretical and experimental breakthrough results have revealed the importance of beyond-mean-field contributions in weakly-interacting systems when the mean-field energy is quasi-canceled due to the presence of ...
  • Quantum Gross-Pitaevskii Equation 
    Haegeman, Jutho; Draxler, Damian; Stojevic, Vid; Cirac, J. Ignacio; Osborne, Tobias J.; Verstraete, Frank (Amsterdam : SciPost Foundation, 2017)
    We introduce a non-commutative generalization of the Gross-Pitaevskii equation for one-dimensional quantum gasses and quantum liquids. This generalization is obtained by applying the time-dependent variational principle ...
  • Quantum imaging beyond the standard-quantum limit and phase distillation 
    Schaffrath, Simon; Derr, Daniel; Gräfe, Markus; Giese, Enno ([Bad Honnef] : Dt. Physikalische Ges., 2024)
    Quantum sensing using non-linear interferometers (NLIs) offers the possibility of bicolour imaging, using light that never interacted with the object of interest, and provides a way to achieve phase supersensitivity, i.e. ...
  • Quantum information processing with Clifford quantum cellular automata 
    Gütschow, Johannes (Hannover : Gottfried Wilhelm Leibniz Universität Hannover, 2012)
    [no abstract]
  • Quantum interference in an electron-hole graphene ring system 
    Smirnov, D.; Schmidt, H.; Haug, Rolf J. (College Park, MD : American Institute of Physics, 2013)
    Quantum interference is observed in a graphene ring system via the Aharonov Bohm effect. As graphene is a gapless semiconductor, this geometry allows to study the unique situation of quantum interference between electrons ...
  • Quantum limit of different laser power stabilization schemes involving optical resonators 
    Kwee, P.; Willke, Benno; Danzmann, Karsten (Bristol : IOP Publishing Ltd., 2010)
    Three different laser power stabilization schemes are compared: a traditional power stabilization, a traditional one with subsequent optical resonator, and a power stabilization with the novel optical ac coupling technique. ...
  • Quantum logic inspired techniques for spacetime-symmetry tests with (anti-)protons 
    Cornejo, Juan M.; Lehnert, Ralf; Niemann, Malte; Mielke, Johannes; Meiners, Teresa; Bautista-Salvador, Amado; Schulte, Marius; Nitzschke, Diana; Borchert, Matthias J.; Hammerer, Klemens; Ulmer, Stefan; Ospelkaus, Christian ([London] : IOP, 2021)
    Cosmological observations as well as theoretical approaches to physics beyond the standard model provide strong motivations for experimental tests of fundamental symmetries, such as CPT invariance. In this context, the ...
  • Quantum magnetism without lattices in strongly interacting one-dimensional spinor gases 
    Deuretzbacher, Frank; Becker, D.; Bjerlin, J.; Reimann, S.M.; Santos, Luis (College Park, MD : American Physical Society, 2014)
    We show that strongly interacting multicomponent gases in one dimension realize an effective spin chain, offering an alternative simple scenario for the study of one-dimensional (1D) quantum magnetism in cold gases in the ...
  • Quantum many-body dynamics of driven-dissipative Rydberg polariton systems 
    Pistorius, Tim (Hannover : Institutionelles Repositorium der Leibniz Universität Hannover, 2021)
    We present the successful solution of the notoriously hard but experimentally highly relevant many-body problem of driven-dissipative Rydberg polaritons in an optical lattice. From the continuous model, we derive a dispersion ...
  • Quantum memories for fundamental science in space 
    Mol, Jan-Michael; Esguerra, Luisa; Meister, Matthias; Bruschi, David Edward; Schell, Andreas Wolfgang; Wolters, Janik; Wörner, Lisa (Philadelphia, PA : IOP Publishing, 2023)
    Investigating and verifying the connections between the foundations of quantum mechanics and general relativity will require extremely sensitive quantum experiments. To provide ultimate insight into this fascinating area ...
  • Quantum metrology for gravitational wave astronomy 
    Schnabel, Roman; Mavalvala, Nergis; McClelland, David E.; Lam, Ping K. (London : Nature Publishing Group, 2010)
    Einstein's general theory of relativity predicts that accelerating mass distributions produce gravitational radiation, analogous to electromagnetic radiation from accelerating charges. These gravitational waves (GWs) have ...
  • Quantum metrology with squeezed and entangled light for the detection of gravitational waves 
    Steinlechner, Sebastian (Hannover : Gottfried Wilhelm Leibniz Universität Hannover, 2013)
    [no abstract]
  • Quantum nanofriction in trapped ion chains with a topological defect 
    Timm, L.; Rüffert, L.A.; Weimer, H.; Santos, L.; Mehlstäubler, T.E. (College Park, MD : APS, 2021)
    Trapped ion systems constitute a well controllable scenario for the study and emulation of nanofriction, and in particular of Frenkel-Kontorova-like models. This is in particular the case when a topological defect is created ...
  • Quantum neural networks 
    Beer, Kerstin (Hannover : Institutionelles Repositorium der Leibniz Universität Hannover, 2022)
    Quantum computing is one of the most exciting research areas of the last decades. At the same time, methods of machine learning have started to dominate science, industry and our everyday life. In this thesis we combine ...
  • 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 ...
  • Quantum noise limits to simultaneous quadrature amplitude and phase stabilization of solid-state lasers 
    Huntington, E.H.; Harb, C.C.; Heurs, Michèle; Ralph, T.C. (College Park, MD : American Physical Society, 2007)
    A quantum mechanical model is formulated to describe the coupling between pump intensity noise and laser frequency noise in a solid-state laser. The model allows us to investigate the limiting effects of closed-loop ...

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