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  • News
    Quantum revolution takes a leap forward
    24.01.2020
    Technological progress over the last century has enabled the processing and distribution of information in faster and more efficient ways. Termed the “digital revolution”, the effects thereof cover al
  • News
    Feyerabend: Killing Time at Yale
    20.07.2021
    with the confused and whining sociologists, or lumped together with them. Yale was my first teaching position, and I owe it to Feyerabend. I was a post-doc at the Minnesota Center for Philosophy of Science when Feyerabend sent the draft of a paper [2] in which he defended Bohr against Popper’s critique of complementarity to Herbert Feigl, the Director of the Center. Feigl asked me to present a report on the paper. I agreed with Feyerabend’s analysis and added some ...
  • News
    10 year anniversary IQOQI Vienna
    30.06.2014
    IQOQI Vienna celebrates its 10th anniversary. The interesting 2-days-program includes 2 public lectures by the Nobel Prize laureate Chen Ning Yang and the Nobel Prize laureate Serge Haroche and panel discussions. Program overview Details on website
  • News
    Invitation to a talk: Juan Bermejo-Vega, Wednesday, July 18th 2018, 11 am at the IQOQI Seminar Room
    18.07.2018
    Eisert, Architectures for quantum simulation showing a quantum speedup, Phys. Rev. X 8, 021010, https://arxiv.org/abs/1703.00466 [2] D. Hangleiter, J. Bermejo-Vega, M. Schwarz, and J. Eisert, Anticoncentration theorems for schemes showing a quantum speedup, Quantum 2, 65 (2018), https://arxiv.org/abs/1706.03786 Wednesday, July 18, 2018 11:00 am IQOQI Seminar Room, 2nd Floor Boltzmanngasse 3, 1090 Vienna Hosted by: Markus Müller & Yelena Guryanova [...] this talk, we will ...
  • News
    Philosophysics: the (pre-)history of quantum foundations in Vienna
    13.01.2023
    publicly acknowledging the prime importance of this field of research. This marks a real turning point: only a couple of decades ago, whoever devoted their time to quantum foundations “was liable to be labelled at best an 'outsider' or at worst a crank” [2]. Even the Irish physicist John S. Bell, who revolutionized this field by deriving the inequalities that bear his name and led to this year's Nobel Prize, at the time of his untimely death in 1990, had received incredibly ...
  • Event
    About fluctuating systems with nonreciprocal interactions
    15.07.2024
    only inflate, as in equilibrium criticality, but also develop an asymptotically increasing time-reversal asymmetry [2]. Second, we introduce nonreciprocal coupling in the XY model, where nonreciprocity can lead to the formation of true long-range order [3], but can also induce spatiotemporal chaos that can be regarded as a source of self-generated noise. [1] Loos and Klapp, NJP (2020). [2] Suchanek, Kroy, and Loos, PRE (2023), PRE (2023), and PRL (2023). [3] Loos, Klapp, and ...
  • Event
    Flat space/spacetime from Quantum Mechanics
    09.10.2024
    ideas, we report on two extensions of this result [2-4]: how the metric structure of the Euclidean 3-space and of the flat Minkowski space can be recovered in the classical limit from quantum mechanics using only the observables of abstract (algebraic form of) quantum mechanics. [1] R. Penrose, Combinatorial quantum theory and quantized directions, in {\it Advances in Twistor Theory}, Eds. L. P. Houghston, R. S. Ward, Pitman Publishing Ltd, London 1979 [2] L. B. Szabados, A ...
  • News
    Job Announcements of our Strategic Partner - International Center for Theory of Quantum Technologies
    19.09.2018
    1. Call for applications for Group Leader for the research group Quantum Cybersecurity and Communication - https://euraxess.ec.europa.eu/jobs/335676 [1] 2. Call for applications for Group Leader for the research group New Quantum Resources II - https://euraxess.ec.europa.eu/jobs/336975 [2] 3. Call for applications for Group Leader for the research group Quantum Open Systems - https://euraxess.ec.europa.eu/jobs/336981 [3] 4. Call for applications for Group Leader for the ...
  • Event
    Towards a test of the Quantum equivalence principle
    05.08.2021
    etric setup that employs atomic clocks to observe a superposition of gravitational time dilations. I showed that this system can test some features of the quantum equivalence principle, employing the framework of spacetime quantum reference frames [2], namely quantum reference frames associated to particles that have both external and internal degrees of freedom. Finally, I will talk about how gravitational time dilation enhances some gravity-related measurements performed ...
  • News
    Quantum learning chosen for IOP Select
    18.11.2009
    completion of learning.We find an explicit example of the task for which numerical simulations show that quantum learning is faster than its classical counterpart. The task is extraction of the kth root of NOT (NOT = logical negation), with k = 2m and m 2 N. The reason for this speed-up is that the classical machine requires memory of size log k = m to accomplish the learning, while the memory of a single qubit is sufficient for the quantum machine for any k.  ...