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  • News
    Invitation to a talk by Marko Vojinovic on Tuesday, November 7th 2017, 12:00h at the IQOQI Seminar Room
    07.11.2017
    l fields. The RQG model will then enable us to discuss situations where the causal order between two events is not uniquely defined. Tuesday, November 7, 2017 12:00 h IQOQI Seminar Room, 2nd Floor, Boltzmanngasse 3, 1090 Vienna Hosted by: Caslav Brukner
  • News
    Highlight: "An optical probe of quantum gravity?"
    19.04.2012
    scale, new phenomena could arise. However, the Planck-scale is so remote from current experimental capabilities that tests of quantum gravity are widely believed to be nearly impossible. Now an international collaboration between the groups of Caslav Brukner and Markus Aspelmeyer at the University of Vienna and Myungshik Kim at Imperial College London has proposed a new quantum experiment using Planck-mass mirrors. Such an experiment could test certain predictions made by ...
  • News
    TURBO FÜR QUANTENRECHNUNGEN
    17.06.2022
    zu nutzen. Damit ist der Weg frei, um das Prinzip mit Experimenten praktisch nutzbar zu machen. “Wir haben ein spezielles Problem gefunden, das sich auf diese Weise nutzen lässt. Damit haben wir bewiesen, dass das grundsätzlich möglich ist," sagt Brukner, der von einer weiteren Übertragbarkeit und Anwendbarkeit dieses Prinzips überzeugt ist. Die Forscher konnten darüber hinaus sogar bestimmen, wie groß der Geschwindigkeitsvorteil ist, wenn die Reihenfolge der Rechenschritte ...
  • News
    Lecture Series on Scientific Realism
    12.11.2018
    –completely organised by a group of students, co-sponsored by IQOQI-Vienna– garnered a great deal of success, reaching peaks of 170 participants. This series of lectures aimed at fostering the attention towards foundations of physics, and, as Prof. Brukner pointed out in his introduction (see video [Teil 1]), initiative of this kind might “strengthen the profile of the University of Vienna as one of the […] informal capitals of foundational questions in science”. Download ...
  • News
    Invitation to a talk: Jordan Colter, Monday, July 9th 2018, 3 pm at the IQOQI Seminar Room
    09.07.2018
    a variety of examples. The superdensity operator formalism is used to uncover interesting structural properties of local causal influence. Monday, July 9, 2018 3:00 pm IQOQI Seminar room, 2nd floor Boltzmanngasse 3, 1090 Vienna Hosted by: Časlav Brukner
  • News
    Invitation to a talk: Francisco Pipa, Wednesday, July 11th 2018, 11 am at the IQOQI Seminar Room
    11.07.2018
    gravity-matter coherent states. Lastly, we discuss a possible violation of the weak equivalence principle due to the nongeodesic motion. Wednesday, July 11, 2018 11:00 am IQOQI Seminar room, 2nd floor Boltzmanngasse 3, 1090 Vienna Hosted by: Časlav Brukner
  • Event
    Towards a test of the Quantum equivalence principle
    05.08.2021
    using some quantum information tools such as Fisher Information and Quantum Fisher Information, that measure the amount of information that probability distributions and quantum states carry about a certain parameter of interest. [1] F. Giacomini, C. Brukner, Einstein’s Equivalence principle for superpositions of gravitational fields, arXiv: 2012.13754. [2] F. Giacomini, Spacetime Quantum Reference Frames and superpositions of proper times, arXiv:2101.11628.
  • Event
    Interplay of quantum information, foundations and gravity
    28.05.2018
    specific goal is to facilitate interdisciplinary collaborations on addressing some of the deepest problems in physics by helping to bridge the gap in communication. Speakers: Philippe Allard Guerin (IQOQI Vienna) Alessio Belenchia (IQOQI Vienna) Caslav Brukner (IQOQI Vienna) Esteban Castro Ruiz (IQOQI Vienna) Goffredo Chirco (Albert Einstein Institut, Potsdam) Will Donnelly (Perimeter Institute) Jens Eisert (FU Berlin) Rodolfo Gambini (Universidad de la Republica Uruguay) ...
  • News
    A connection between quantum correlations and spacetime geometry
    09.07.2019
    particles interacting locally. Ĉaslav Brukner, group leader at IQOQI-Vienna and an author or the work, comments: “This work provides a connection between quantum correlations and spacetime geometry. These insights may prove useful for the development of future theories unifying quantum mechanics and gravity.” Publication in Nature Partner Journal Quantum Information: A Spacetime Area Law Bound on Quantum Correlations Ilya Kull, Philippe Allard Guérin, Časlav Brukner (2019), ...
  • News
    Article "Logical independence and quantum randomness" featured as a highlight in Europhysics News
    26.05.2010
    T Paterek, J Kofler, R Prevedel, P Klimek, M Aspelmeyer, A Zeilinger and C Brukner Logical independence and quantum randomness Europhysik News Vol. 41 No. 2 (March-April 2010) Abstract: We propose a link between logical independence and quantum physics. We demonstrate that quantum systems in the eigenstates of Pauli group operators are capable of encoding mathematical axioms and show that Pauli group quantum measurements are capable of revealing whether or not a given ...