Browsing by Subject "quantum"

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  • Ubbelohde, Niels; Fricke, Christian; Flindt, Christian; Hohls, Frank; Haug, Rolf J. (Lausanne : Frontiers Research Foundation, 2012-01)
    Electron transport in nanoscale structures is strongly influenced by the Coulomb interaction that gives rise to correlations in the stream of charges and leaves clear fingerprints in the fluctuations of the electrical ...
  • Brell, Courtney G.; Bartlett, Stephen D.; Doherty, Andrew C. (Bristol : IOP Publishing Ltd., 2014-12-22)
    We construct parent Hamiltonians involving only local 2-body interactions for a broad class of projected entangled pair states (PEPS). Making use of perturbation gadget techniques, we define a perturbative Hamiltonian ...
  • Anders, Fabian; Pezze, Luca; Smerzi, Augusto; Klempt, Carsten (College Park : American Physical Society, 2018)
    Entanglement-enhanced atom interferometry has the potential of surpassing the standard quantum limit and eventually reaching the ultimate Heisenberg bound. The experimental progress is, however, hindered by various technical ...
  • Wan, Yong; Gebert, Florian; Wuebbena, Jannes B.; Scharnhorst, Nils; Amairi, Sana; Leroux, Ian D.; Hemmerling, Boerge; Loerch, Niels; Hammerer, Klemens; Schmidt, Piet O. (London : Nature Publishing Group, 2014)
    Precision spectroscopy of atomic and molecular ions offers a window to new physics, but is typically limited to species with a cycling transition for laser cooling and detection. Quantum logic spectroscopy has overcome ...
  • Gajdacz, M.; Hilliard, A.J.; Kristensen, M.A.; Pedersen, P.L.; Klempt, Carsten; Arlt, Jan J.; Sherson, J.F. (College Park : American Physical Society, 2016)
    We prepare number stabilized ultracold atom clouds through the real-time analysis of nondestructive images and the application of feedback. In our experiments, the atom number N similar to 10(6) is determined by high ...
  • Doikou, Anastasia; Karaiskos, Nikos (New York, NY : Springer International Publishing, 2013)
    We consider the Heisenberg spin chain in the presence of integrable spin defects. Using the Bethe ansatz methodology, we extract the associated transmission amplitudes, that describe the interaction between the particle-like ...