25 research outputs found
Empirical Validation of MoDe4SLA; Approach for Managing Service Compositions
For companies managing complex Web service compositions, challenges arise which go far beyond simple bilateral contract monitoring. For example, it is not only important to determine whether or not a component (i.e., Web service) in a composition is performing properly, but also to understand what the impact of its performance is on the overall service composition. To tackle this challenge, in previous work we developed MoDe4SLA which allows managing and monitoring dependencies between services in a composition. This paper empirically validates MoDe4SLA through an extensive and interactive experiment among 34 participants
Entanglement preparation using symmetric multiports
We investigate the entanglement produced by a multi-path interferometer that
is composed of two symmetric multiports, with phase shifts applied to the
output of the first multiport. Particular attention is paid to the case when we
have a single photon entering the interferometer. For this situation we derive
a simple condition that characterize the types of entanglement that one can
generate. We then show how one can use the results from the single photon case
to determine what kinds of multi-photon entangled states one can prepare using
the interferometer.Comment: 6 pages, 2 figures, accepted for publication in European Journal of
Physics
Entanglement preparation using symmetric multiports
We investigate the entanglement produced by a multi-path interferometer that
is composed of two symmetric multiports, with phase shifts applied to the
output of the first multiport. Particular attention is paid to the case when we
have a single photon entering the interferometer. For this situation we derive
a simple condition that characterize the types of entanglement that one can
generate. We then show how one can use the results from the single photon case
to determine what kinds of multi-photon entangled states one can prepare using
the interferometer.Comment: 6 pages, 2 figures, accepted for publication in European Journal of
Physics
Entanglement in helium
Using a configuration-interaction variational method, we accurately compute
the reduced, single-electron von Neumann entropy for several low-energy,
singlet and triplet eigenstates of helium atom. We estimate the amount of
electron-electron orbital entanglement for such eigenstates and show that it
decays with energy.Comment: 5 pages, 2 figures, added references and discussio
Quantum statistical synchronization of non-interacting particles
A full treatment for the scattering of an arbitrary number of bosons through
a Bell multiport beam splitter is presented that includes all possible output
arrangements. Due to exchange symmetry, the event statistics differs
dramatically from the classical case in which the realization probabilities are
given by combinatorics. A law for the suppression of output configurations is
derived and shown to apply for the majority of all possible arrangements. Such
multiparticle interference effects dominate at the level of single transition
amplitudes, while a generic bosonic signature can be observed when the average
number of occupied ports or the typical number of particles per port is
considered. The results allow to classify in a common approach several recent
experiments and theoretical studies and disclose many accessible quantum
statistical effects involving many particles.Comment: 8 pages, 6 figure
The Role of Reflective Practices in Building Social Capital in Organizations From an HRD Perspective
Nutzung aktiver Antennenbewegungen zur Hindernisdetektion und Steuerung von gezielten Greifbewegungen bei Insekten
Dürr V. Nutzung aktiver Antennenbewegungen zur Hindernisdetektion und Steuerung von gezielten Greifbewegungen bei Insekten. In: Pfeiffer F, Cruse H, eds. Autonomes Laufen. Berlin : Springer; 2005: 47-61