2,247 research outputs found

    Statistics of conductance and shot-noise power for chaotic cavities

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    We report on an analytical study of the statistics of conductance, gg, and shot-noise power, pp, for a chaotic cavity with arbitrary numbers N1,2N_{1,2} of channels in two leads and symmetry parameter β=1,2,4\beta = 1,2,4. With the theory of Selberg's integral the first four cumulants of gg and first two cumulants of pp are calculated explicitly. We give analytical expressions for the conductance and shot-noise distributions and determine their exact asymptotics near the edges up to linear order in distances from the edges. For 0<g<10<g<1 a power law for the conductance distribution is exact. All results are also consistent with numerical simulations.Comment: 7 pages, 3 figures. Proc. of the 3rd Workshop on Quantum Chaos and Localisation Phenomena, Warsaw, Poland, May 25-27, 200

    First beamtime results for PANDA EMC barrel prototype proto 120

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    Further Development of the APFEL - ASIC for the PANDA Calorimeter

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    Operational multipartite entanglement classes for symmetric photonic qubit states

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    We present experimental schemes that allow to study the entanglement classes of all symmetric states in multiqubit photonic systems. In addition to comparing the presented schemes in efficiency, we will highlight the relation between the entanglement properties of symmetric Dicke states and a recently proposed entanglement scheme for atoms. In analogy to the latter, we obtain a one-to-one correspondence between well-defined sets of experimental parameters and multiqubit entanglement classes inside the symmetric subspace of the photonic system.Comment: 5 pages, 1 figur

    Sondermuell in Baden-Wuerttemberg

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