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    Quantum Science and Application in Biology
    systems directly interact with the experiment at quantum level. There are relatively recent experiments that suggest the presence of single photon response at both single photoreceptor and perception levels (in frog and human being, respectively) [3, 4] which are promising signs that the field is booming. [1] E. J. O’Reilly , A. Olaya-Castro , “ Non-classicality of the molecular vibrations assisting exciton energy transfer at room temperature ”, Nature Communications 5, 3012 ...
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    Quantum Cryptography with High-Dimensional and Many-Party Entanglement
    nal entangled states can be used to create correlated data from which all these subset keys can be derived by classical post-processing, leading to a much more efficient protocol than running many copies of a bipartite protocol, achieving the same [4,5]. A central goal we are currently pursuing is finding more uses of high-dimensional multipartite states in quantum cryptography. Recent work: F. Brandt, M. Hiekkamäki, F. Bouchard, M. Huber, and R. Fickler, High-dimensional ...
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    Calendar detail
    17:30 Multispectral Optoacoustic Tomography for Clinical Applications Lise Meitner Hörsaal, Strudlhofgasse 4, 1st floor, Vienna Mi, 30.11.2016 0:00 The Big Bell Test All Over The World Do, 01.12.2016 14:00 Weak-values techniques: when parameter estimation becomes easy Presenter : Julian Martinez-Rincon; University of Rochester Host : M. Aspelmeyer Where : Schrödingerroom, Boltzmanngasse 5, 4th… Fr, 02.12.2016 11:45 Atomic Hong-Ou-Mandel experiment Presenter : Denis Boiron; ...
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    Gravitational Quantum Physics
    conjecture a modification of canonical commutation relations. We were the first group to propose a scheme to experimentally test this conjecture by probing the canonical commutation relation of the center-of-mass mode of a nano-mechanical oscillator [4]. A single clock is brought in a quantum superposition of two locations: closer and further away from the surface of the Earth. Because of the gravitational time dilation, the time shown by the clock reveals the information on ...
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    Publications 1980 – 1989
    W. Treimer, R. Gähler Phys. Rev. Lett. , 46 , 1551 (1981) DOI Webseite Download RIS ENW BIB Demonstration of SU(2)-Symmetry by Neutron Interferometry Demonstration of SU(2)-Symmetry by Neutron Interferometry Rauch H., A. Zeilinger Hadronic Journal , 4 , 1280 (1981) RIS ENW BIB Neutron optical tests of nonlinear wave mechanics Neutron optical tests of nonlinear wave mechanics Gähler R., A.G. Klein, A. Zeilinger Physical Review A , 23 , 1611 (1981) DOI Webseite Download RIS ...
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    Reconstructions of Quantum Theory
    contributions from our group Over the last few years, we have contributed to the reconstruction program in a variety of ways. In a number of publications, we have in particular pursued the following goals: Derive QT from even fewer or weaker assumptions [3, 4, 5, 6] . This is an obvious kind of improvement of the reconstruction results that aims at distilling the "ultimate essence" of QT into a few simple principles. Give a reconstruction of QT with principles that only talk ...
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    Process matrix correlations
    Brukner, “The simplest causal inequalities and their violation”, New J. Phys. 18, 013008 (2016). [3] M. Araújo, A. Feix, M. Navascués and Č. Brukner, "A purification postulate for quantum mechanics with indefinite causal order", Quantum 1, 10 (2017). [4] N. Miklin, A. A. Abbott, C. Branciard, R. Chaves, and C. Budroni, The entropic approach to causal correlations, New J. Phys. 19 113041 (2017). [5] Y. Guryanova, R. Silva, A. J. Short, P. Skrzypczyk, N. Brunner, and S. ...
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    Autonomous Quantum Machines
    . Figure taken from the review “The role of quantum information in thermodynamics”. b) An experimental proposal for the implementation of the abstract system on the left in a system of three cavities coupled by a Josephson junction. Taken from Ref [4]. Beyond foundational insights into the universe, thermodynamics has actually emerged from the practical need to describe practical limitations in the context of the industrial revolution. The rapid pace of advancement in ...
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    Asenbaum Group
    A. Mazumdar, G. W. Morley, H. Ulbricht, M. Toroš, M. Paternostro, A. A. Geraci, P. F. Barker, M. S. Kim, G. Milburn Spin Entanglement Witness for Quantum Gravity, Phys. Rev. Lett. 119, 240401 (2017), https://doi.org/10.1103/PhysRevLett.119.240401 [4] T. Krisnanda, G. Y. Tham, M. Paternostro, T. Paterek, Observable quantum entanglement due to gravity . npj Quantum Inf 6, 12 (2020). https://doi.org/10.1038/s41534-020-0243-y [5] D. Carney, Newton, entanglement, and the ...
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    Generalized Probabilistic Theories
    As a result, the Page Curve becomes modified at large evaporation times. M. P. Müller, J. Oppenheim, and O. C. O. Dahlsten, The black hole information problem beyond quantum theory , J. High Energy Phys. 09 , 116 (2012). DOI:10.1007/s13130-012-4801-4 ; arXiv:1206.5030 . Thermodynamics in general theories . We have analyzed how thermodynamics constrains the probabilistic theory that describes Nature: M. Krumm, H. Barnum, J. Barrett, and M. P. Müller, Thermodynamics and the ...