Auflistung nach Schlagwort "limit"

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  • Detecting Multiparticle Entanglement of Dicke States 
    Lücke, Bernd; Peise, Jan; Vitagliano, Giuseppe; Arlt, Jan J.; Santos, Luis; Toth, Geza; Klempt, Carsten (College Park : American Physical Society, 2014)
    Recent experiments demonstrate the production of many thousands of neutral atoms entangled in their spin degrees of freedom. We present a criterion for estimating the amount of entanglement based on a measurement of the ...
  • Interferometric sensitivity and entanglement by scanning through quantum phase transitions in spinor Bose-Einstein condensates 
    Feldmann, P.; Gessner, M.; Gabbrielli, M.; Klempt, Carsten; Santos, Luis; Pezze, L.; Smerzi, A. (College Park : American Physical Society, 2018)
    Recent experiments demonstrated the generation of entanglement by quasiadiabatically driving through quantum phase transitions of a ferromagnetic spin-1 Bose-Einstein condensate in the presence of a tunable quadratic Zeeman ...
  • Phase magnification by two-axis countertwisting for detection-noise robust interferometry 
    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 ...
  • Preparation of Ultracold Atom Clouds at the Shot Noise Level 
    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 ...
  • 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 ...
  • Resonant five-body recombination in an ultracold gas of bosonic atoms 
    Zenesini, Alessandro; Huang, Bo; Berninger, Martin; Besler, Stefan; Naegerl, Hanns-Christoph; Ferlaino, Francesca; Grimm, Rudolf; Greene, Chris H.; Stecher, Javier von (Bristol : IOP Publishing Ltd., 2013-04-22)
    We combine theory and experiment to investigate five-body recombination in an ultracold gas of atomic cesium at negative scattering length. A refined theoretical model, in combination with extensive laboratory tunability ...
  • Spin dynamics in a two-dimensional quantum gas 
    Pedersen, Poul L.; Gajdacz, Miroslav; Deuretzbacher, Frank; Santos, Luis; Klempt, Carsten; Sherson, Jacob F.; Hilliard, Andrew J.; Arlt, Jan J. (College Park : American Physical Society, 2014)
    We have investigated spin dynamics in a two-dimensional quantum gas. Through spin-changing collisions, two clouds with opposite spin orientations are spontaneously created in a Bose-Einstein condensate. After ballistic ...