Now showing items 1-3 of 3

    • Noise-Resistant Optimal Spin Squeezing via Quantum Control 

      Caneva, T.; Montangero, S.; Lukin, Mikhail D.; Calarco, Tommaso (American Physical Society, 2013)
      Entangled atomic states, such as spin squeezed states, represent a promising resource for a new generation of quantum sensors and atomic clocks. We demonstrate that optimal control techniques can be used to substantially ...
    • Photon Storage in Lambda-type Optically Dense Atomic Media. IV. Optimal Control Using Gradient Ascent 

      Gorshkov, Alexey Vyacheslavovich; Calarco, Tommaso; Lukin, Mikhail D.; Sorensen, Anders (American Physical Society, 2008)
      We use the numerical gradient ascent method from optimal control theory to extend efficient photon storage in Lambda-type media to previously inaccessible regimes and to provide simple intuitive explanations for our ...
    • rf-Field-Induced Feshbach Resonances 

      Dalgarno, Alexander; Tscherbul, Timur V.; Lesanovsky, Igor; Krems, Roman V.; Schmiedmayer, Jörg; Calarco, Tommaso (American Physical Society, 2010)
      A rigorous quantum theory of atomic collisions in the presence of radio frequency (rf) magnetic fields is developed and applied to elucidate the effects of combined dc and rf magnetic fields on ultracold collisions of Rb ...