Now showing items 1-4 of 4

    • Entanglement : quantification via uncertainties and search among ultracold bosons in optical lattices 

      Öztop, Barış (Bilkent University, 2009)
      In the first part of the Thesis, the known measures of entanglement for finite dimensional systems are reviewed. Both the simplest case of pure states that belong to bipartite systems and more general case of mixed states ...
    • Entanglement and its operational measure 

      Klyachko, Alexander A.; Öztop, Barış; Shumovsky, Alexander S. (Springer, 2006)
      An operational representation of concurrence measuring the entanglement of bipartite systems by means of averages of basic observables is discussed. We prove the validity of this representation for bipartite systems with ...
    • Quantifying quantum information via uncertainties 

      Öztop, Barış; Klyachko, Alexander A.; Shumovsky, Alexander S. (OSA, 2007)
      We show, for a state ψ of a quantum system with the dynamic symmetry given by the Lie group G, total amount of quantum information and entanglement is provided by summarized uncertainty of basic observables.
    • Spin squeezing and entanglement 

      Öztop, Barış; Klyachko, Alexander A.; Shumovsky, Alexander S. (OSA, 2007)
      We reformulate definition of spin squeezing and spin coherence in terms of the total variance in spin operators. We propose a new measure of spin squeezing. We show equivalence of spin squeezing and spin entanglement.