@phdthesis{Partl2011, author = {Partl, Adrian M.}, title = {Cosmological radiative transfer and the lonisation of the integalactic medium}, address = {Potsdam}, pages = {205 S.}, year = {2011}, language = {en} } @phdthesis{Osterloh2011, author = {Osterloh, Lukas}, title = {Retrieving aerosol microphysical properties from multiwavelength Lidar Data}, address = {Potsdam}, pages = {125 S.}, year = {2011}, language = {en} } @phdthesis{Matthes2011, author = {Matthes, Heidrun}, title = {Interaction of land surface processes and the atmophere in the Arctic - senitivities and extremes}, address = {Potsdam}, pages = {123 S.}, year = {2011}, language = {en} } @phdthesis{Dosche2011, author = {Dosche, Carsten}, title = {Funktionale Farbstoffe und ihre Photophysik und Anwendung in komplexen Matrizes}, address = {Potsdam}, pages = {151 S.}, year = {2011}, language = {de} } @book{Brehmer2011, author = {Brehmer, Ludwig}, title = {Die Brandeburgische Landeshochschule zu Potsdam im Jahre eins : die Hochschule in Potsdamer Schulen ; Daten und Fakten ; Kommentare und Dokumente}, volume = {4}, publisher = {Eigenverl. des Verf}, address = {Potsdam}, isbn = {978-3-00-034135-9}, pages = {174 S.}, year = {2011}, language = {de} } @phdthesis{Schewe2011, author = {Schewe, Jacob}, title = {Basic physical mechanisms for monsoon failure in past and future climate}, address = {Potsdam}, pages = {135 S.}, year = {2011}, language = {en} } @phdthesis{Mielke2011, author = {Mielke, Moritz}, title = {Atmosph{\"a}rische Prozesstudien auf der Basis von Beobachtungen und regionalen Klimamodellsimulationen in der Arktis}, address = {Potsdam}, pages = {130 S.}, year = {2011}, language = {de} } @phdthesis{Koseska2011, author = {Koseska, Aneta}, title = {Dynamics of biological networks : data analysis, modeling and bifurcations}, address = {Potsdam}, year = {2011}, language = {en} } @article{JanottaGogolinBarrettetal.2011, author = {Janotta, Peter and Gogolin, Christian and Barrett, Jonathan and Brunner, Nicolas}, title = {Limits on nonlocal correlations from the structure of the local state space}, series = {New journal of physics : the open-access journal for physics}, volume = {13}, journal = {New journal of physics : the open-access journal for physics}, number = {23}, publisher = {IOP Publ. Ltd.}, address = {Bristol}, issn = {1367-2630}, doi = {10.1088/1367-2630/13/6/063024}, pages = {24}, year = {2011}, abstract = {The outcomes of measurements on entangled quantum systems can be nonlocally correlated. However, while it is easy to write down toy theories allowing arbitrary nonlocal correlations, those allowed in quantum mechanics are limited. Quantum correlations cannot, for example, violate a principle known as macroscopic locality, which implies that they cannot violate Tsirelson's bound. This paper shows that there is a connection between the strength of nonlocal correlations in a physical theory and the structure of the state spaces of individual systems. This is illustrated by a family of models in which local state spaces are regular polygons, where a natural analogue of a maximally entangled state of two systems exists. We characterize the nonlocal correlations obtainable from such states. The family allows us to study the transition between classical, quantum and super-quantum correlations by varying only the local state space. We show that the strength of nonlocal correlations-in particular whether the maximally entangled state violates Tsirelson's bound or not-depends crucially on a simple geometric property of the local state space, known as strong self-duality. This result is seen to be a special case of a general theorem, which states that a broad class of entangled states in probabilistic theories-including, by extension, all bipartite classical and quantum states-cannot violate macroscopic locality. Finally, our results show that models exist that are locally almost indistinguishable from quantum mechanics, but can nevertheless generate maximally nonlocal correlations.}, language = {en} } @article{BrandaoEisertHorodeckietal.2011, author = {Brandao, F. G. S. L. and Eisert, Jens and Horodecki, M. and Yang, Dong}, title = {Entangled inputs cannot make imperfect quantum channels perfect}, series = {Physical review letters}, volume = {106}, journal = {Physical review letters}, number = {23}, publisher = {American Physical Society}, address = {College Park}, issn = {0031-9007}, doi = {10.1103/PhysRevLett.106.230502}, pages = {4}, year = {2011}, abstract = {Entangled inputs can enhance the capacity of quantum channels, this being one of the consequences of the celebrated result showing the nonadditivity of several quantities relevant for quantum information science. In this work, we answer the converse question (whether entangled inputs can ever render noisy quantum channels to have maximum capacity) to the negative: No sophisticated entangled input of any quantum channel can ever enhance the capacity to the maximum possible value, a result that holds true for all channels both for the classical as well as the quantum capacity. This result can hence be seen as a bound as to how "nonadditive quantum information can be.'' As a main result, we find first practical and remarkably simple computable single-shot bounds to capacities, related to entanglement measures. As examples, we discuss the qubit amplitude damping and identify the first meaningful bound for its classical capacity.}, language = {en} }