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ENERGYSCAPE - Empfehlungen für eine Landschaftsentwicklung durch Anlagen erneuerbarer Energien in der Schweiz
(2019)Das NFP 70-Projekt «ENERGYSCAPE» untersuchte systematisch die gesellschaftlichen Präferenzen für eine Landschaftsentwicklung durch eine Kombination verschiedener Infrastrukturen erneuerbarer Energien mit einer Online-Panel-Befragung und einem Laborexperiment. Welche der untersuchten Landschaftsszenarien die für die Schweiz repräsentative Auswahl von Befragten bevorzugt, erklärt sich durch die Landschaft und die Wahrnehmung ihrer Struktur, ...Report -
Iterative Quantum Amplitude Estimation
(2019)arXivWe introduce a new variant of Quantum Amplitude Estimation (QAE), called Iterative QAE (IQAE), which does not rely on Quantum Phase Estimation (QPE) but is only based on Grover's Algorithm, which reduces the required number of qubits and gates. We provide a rigorous analysis of IQAE and prove that it achieves a quadratic speedup up to a double-logarithmic factor compared to classical Monte Carlo simulation. Furthermore, we show with an ...Working Paper -
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Quantum metrology with indefinite causal order
(2019)arXivWe address the study of quantum metrology enhanced by indefinite causal order, demonstrating a quadratic advantage in the estimation of the product of two average displacements in a continuous variable system. We prove that no setup where the displacements are probed in a fixed order can have root-mean-square error vanishing faster than the Heisenberg limit 1/N, where N is the number of displacements contributing to the average. In stark ...Working Paper -
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Data-driven modeling of group formation in the fission-fusion dynamics of Bechstein's bats
(2019)bioRxivCommunal roosting in Bechstein's bat colonies is characterized by the formation of several groups that use different day roosts and that regularly dissolve and re-merge (fission-fusion dynamics). Analyzing data from two colonies of different size over many years, we find that (i) the number of days bats stay in the same roost before changing follows an exponential distribution that is independent of the colony size, and (ii) the number ...Working Paper