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Calendar of Physics Talks Vienna
| An Introduction to Quantum Key Distribution and Numerical Security Proofs |
| Speaker: | Max Riegler |
| Abstract: | Quantum Key Distribution (QKD) offers a novel approach to secure communication, leveraging the laws of quantum mechanics. This talk will introduce the fundamental principles behind QKD and highlight its unique advantages. We will explore how numerical methods are used to rigorously certify the security of QKD systems, even in the presence of practical imperfections in hardware and implementation. By combining concepts from physics, information theory, and optimization, these security proofs bridge the gap between theory and real-world applications. |
| Date: | Tue, 17.12.2024 |
| Time: | 12:15 |
| Duration: | 75 min |
| Location: | TU Wien (TU): Wiedner Hauptstr. 8-10, yellow area, 10th floor, seminar room DB10E11 |
| Contact: | Luciano Montecchio |
| The topology of deformation quantization |
| Speaker: | Odul Tetik (University of Vienna) |
| Abstract: | I will motivate the study of disk algebras from deformation quantization and report on some tangential progress.
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| Date: | Tue, 17.12.2024 |
| Time: | 14:00 |
| Duration: | 60 min |
| Location: | Erwin-Schroedinger-Hoersaal, 1090 Vienna, Boltzmanngasse 5, 5th floor |
| Contact: | S. Fredenhagen, M. Sperling |
| Gauge Theory Bootstrap: Pion amplitudes and low energy parameters |
| Speaker: | Yifei He (ENS, Paris) |
| Abstract: | We propose the Gauge Theory Bootstrap -- a method to compute the pion S-matrix that describes the low energy physics of the strong interaction and other similar gauge theories. Using this method, we compute pion scattering phase shifts for all partial waves with angular momentum l<=3 up to 2 GeV and calculate the low energy chiPT coefficients L_{1,2,4,6} . The method looks for the most general S-matrix that matches at low energy the tree level amplitudes of the non-linear sigma model and at high energy, QCD sum rules and form factors. This is a theoretical/numerical calculation that uses as only data the pion mass m_Ï , pion decay constant f_Ï and the QCD parameters N_c =3, N_f =2, m_q and alpha_s . All results are in reasonable agreement with experiment. In particular, we find the rho(770), f_2 (1270) and rho(1450) resonances and some initial indication of particle production near the |
| Date: | Tue, 17.12.2024 |
| Time: | 16:15 |
| Duration: | 60 min |
| Location: | Erwin-Schroedinger-Hoersaal, 1090 Vienna, Boltzmanngasse 5, 5th floor |
| Contact: | A. Hoang, M. Procura |
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