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  • News
    Quantum experiments as an ideal test field for artificial intelligence
    14.02.2018
    [2] M. Malik, M. Erhard, M. Huber, M. Krenn, R. Fickler, A. Zeilinger, Multi-photon entanglement in high dimensions . Nature Photonics 10 (4), 248 (2016). [3] A. Babazadeh, M. Erhard, F. Wang, M. Malik, R. Nouroozi, M. Krenn, A. Zeilinger, High-Dimensional Single-Photon Quantum Gates: Concepts and Experiments . Physical Review Letters 119 (18), 180510 (2017). [4] M. Erhard, M. Malik, M. Krenn, A. Zeilinger, Experimental GHZ entanglement beyond qubits , arXiv :1708.03881 ...
  • News
    Researchers of IQOQI-Vienna win the PNAS Cozzarelli Prize with Melvin – the algorithm that creates new quantum experiments
    11.03.2019
    [2] M. Malik, M. Erhard, M. Huber, M. Krenn, R. Fickler, A. Zeilinger, Multi-photon entanglement in high dimensions . Nature Photonics 10 (4), 248 (2016). [3] A. Babazadeh, M. Erhard, F. Wang, M. Malik, R. Nouroozi, M. Krenn, A. Zeilinger, High-Dimensional Single-Photon Quantum Gates: Concepts and Experiments . Physical Review Letters 119 (18), 180510 (2017). [4] M. Erhard, M. Malik, M. Krenn, A. Zeilinger, Experimental GHZ entanglement beyond qubits , arXiv :1708.03881 ...
  • Event
    Optomechanical cooling with coherent and squeezed light and frequency-dependent mirrors: The thermodynamic cost of opening the heat valve
    13.07.2023
    ts of the cavity output light field. Importantly, we investigate two recent alternative schemes for ground-state cooling: using a cavity with a frequency-dependent mirror (Fano mirror) [3] and replacing the coherent laser drive with squeezed light [4]. We study the dynamics of these setups within and beyond the weak-coupling limit and give concrete examples based on parameters of existing experimental systems. By applying our thermodynamic framework, we gain detailed ...
  • Event
    WORKSHOP "ENTANGLEMENT QUANTIFICATION IN COLD GASES"
    03.02.2020
    scalable witnesses for entanglement and nonlocality", Miguel Navascues --------------------------------------------------------------------------------------------------------------------------------------- 4A) T.B.D., Schmiedmayer group 4B) "Tomography for continuous field quantum simulators", Marek Gluza 4C-E) Discussion Time
  • Event
    Quantum biology: does nature use quantum tricks?
    13.05.2025
    and specifically for generating consciousness, which has a holistic character reminiscent of entanglement. In this context, I have argued that combining spin and photonic degrees of freedom could be a viable approach in terms of biological hardware [4]. In terms of “software”, a leading neuroscientific theory suggests that consciousness serves as a global workspace, which has already inspired recent work in classical artificial intelligence, motivating us to explore quantum ...
  • Event
    Non-local quantum interference controlled by an undetected photon and integrated photonics for quantum network
    29.06.2023
    fiber network. They include: 1. Heterogeneously integrated, superconducting silicon-photonic chip for quantum key distribution [2]; 2. Solid-state quantum memory at telecom wavelength [3]. 3. Generation and manipulation of multiphoton entangled states [4]. References: Qian, K. et al. Multiphoton non-local quantum interference controlled by an undetected photon. Nat Commun 14 , 1480 (2023). Zheng, X. et al. Heterogeneously integrated, superconducting silicon-photonic platform ...
  • News
    Keine Quantentheorie ohne imaginäre Zahlen
    26.01.2022
    based on real numbers can be experimentally falsified“, Marc-Olivier Renou, David Trillo, Mirjam Weilenmann, Le Phuc Thinh, Armin Tavakoli, Nicolas Gisin, Antonio Acín, and Miguel Navascues, Nature 600 , 625–629 (2021) DOI: 10.1038/s41586-021-04160-4
  • Event
    Flat space/spacetime from Quantum Mechanics
    09.10.2024
    In the present talk, after recalling the original 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 ...
  • News
    Job Announcements of our Strategic Partner - International Center for Theory of Quantum Technologies
    19.09.2018
    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 research group Quantum Computation, Quantum Error Correction and Many-body Systems - https://euraxess.ec.europa.eu/jobs/336990 [4] 5. Call for applications for Post-doctoral Researchers for the research group Multiphoton Quantum Optics for Quantum Information - ...
  • Event
    Semiconductor-based sources of single and highly-entangled photons
    27.06.2019
    Rastelli et al., Phys. Rev. Lett. 92, 166104 (2004). [2] Y. Huo et al., Nature Phys. 10, 46 (2014). [3] D. Huber et al., Phys. Rev. Lett. 121, 033902 (2018). [4] M. Reindl et al., arXiv:1901.11251 [5] L. Schweickert et al., Appl. Phys. Lett. 112, 093106 (2018). [6] J. Liu et al., Nature Nanotech. 14, 586 (2019). [7] M. Reindl et al., Science Adv. 4, 12, eaau1255 (2018). F. Basso Basset et al., arXiv:1901.06646v1 [8] A. Rastelli et al, Phys. Status Solidi (b), 249, 687 ...