Location: Quantum Chaos and Quantum Information (Jagiellonian University)
seminar
Speaker: Filip Maciejewski (CFT PAN Warszawa) Abstract We introduce operational distance measures between quantum states, measurements, and channels based on their average-case distinguishability. To this end, we analyze the average Total Variation Distance (TVD) between statistics of quantum protocols in which quantum objects are intertwined with random circuits and subsequently measured in a computational basis. […]
Speaker: Sebastian Szybka (Jagiellonian University) Abstract Standing waves are a quite common phenomenon in physics.They are well understood in linear theories. In Einstein's gravity, which is a nonlinear theory, the lack of superposition principle complicates studies. I will present exact solutions to Einstein equations that correspond to standing gravitational waves. They provide useful toy-models that […]
Speaker: Marcin Markiewicz (ICTQT) Abstract Recently there appeared many works on modified Wigner's Friend paradoxes, which suggest that quantum theory cannot consistently describe the scenario with many observers. In this presentation I will show an alternative approach to this problem, which indicates that the paradoxes are in fact apparent, and the source of confusion is […]
Speaker: Pedro Dieguez (ICTQT) Abstract Wheeler’s delayed-choice experiment, a scenario wherein a classical apparatus, typically an interferometer, is settled only after the quantum system has entered it, has corroborated the complementarity principle. However, the quantum version of Wheeler's delayed-choice experiment has challenged the robustness of this principle. Based on the visibility at the output of […]
Speaker: Sergii Strelchuk (Department of Applied Mathematics and Theoretical Physics, University of Cambridge) Abstract In this talk, I will discuss one of the key properties which are responsible for the unreasonable success of classical convolutional neural networks – equivariance. It states that if the input to the neural network is shifted, then its activations translate accordingly. […]
The Quantum SpeedUp workshop series organized by ICTQT aims to provide a space for integration, exchange of ideas and inspiration between the members of the boosting quantum technology community in Poland.
Speaker: Beata Zjawin(ICTQT, UG) Abstract Observations at astronomical scales provide a strong evidence for existence of dark matter. The nature of dark matter composition, however, is still not known. Lack of detections of dark matter particles triggered multiple alternative theories. In this seminar, I will focus on dark matter candidates in form of scalar fields […]