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Centrum Fizyki Teoretycznej PAN
Poland
Registrace 19. 11. 2013
Kanał Centrum Fizyki Teoretycznej PAN na którym publikujemy nagrania naszych seminariów, wykładów i dyskusji. Zapraszamy!
P. Grangier: Experimental tests of Bell’s inequalities at Institut d’Optique '80. Future directions.
Prof. Philippe Grangier (Institut d'Optique Graduate School, CNRS, Université Paris-Saclay, France).
Experimental tests of Bell’s inequalities at Institut d’Optique (1980-82): past achievements and future directions.
We will review the motivations and history of the experiments that lead to the Nobel Prize in Physics 2022, attributed to Alain Aspect, John Clauser and Anton Zeilinger. We will then discuss some future perspectives, both on the side of quantum technologies, and on the side of the more philosophical issues that motivated initially these experiments.
Warsaw colloquium for theoretical physics at CTP PAS - 2024-06-05
Experimental tests of Bell’s inequalities at Institut d’Optique (1980-82): past achievements and future directions.
We will review the motivations and history of the experiments that lead to the Nobel Prize in Physics 2022, attributed to Alain Aspect, John Clauser and Anton Zeilinger. We will then discuss some future perspectives, both on the side of quantum technologies, and on the side of the more philosophical issues that motivated initially these experiments.
Warsaw colloquium for theoretical physics at CTP PAS - 2024-06-05
zhlédnutí: 82
Video
Lecture 14: Gravitational wave sources and detectors, Schwarzschild metric
zhlédnutí 46Před 4 hodinami
Graduate course, Warsaw4PhD and GeoPlanet PhD schools Autumn/Winter Semester 2023-2024 Lecturer: Mikołaj Korzyński, Center for Theoretical Physics, Polish Academy of Sciences 0:00 Reminder of the previous lecture 0:41 Quadrupole formula 54:05 Break 54:22 Total power of a GW source 58:36 Sources of GW 01:15:29 GW detectors 01:34:00 Schwarzschild metric: intro 01:36:25 Schwarzschild metric: deriv...
Albert Rico (Jagiellonian University): Nonlocality of channels under decoherence
zhlédnutí 43Před 7 hodinami
Albert Rico (Jagiellonian University). Nonlocality of channels under decoherence. Bell nonlocality asserts that correlations in quantum states cannot always be explained by hidden variables assuming local realism. While being extensively studied in the context of quantum states, the study of nonlocality for quantum channels has only recently garnered attention. A particularly relevant case conc...
Gamma-Ray Bursts fundamental plane relation, SNe Ia, BAO and Quasars: the cosmological application
zhlédnutí 30Před 19 hodinami
Prof. Maria Giovanna Dainotti (National Astronomical Observatory of Japan, Tokyo). The Gamma-Ray Bursts fundamental plane relation combined with SNe Ia, BAO and Quasars and the cosmological application. Type Ia Supernovae (SNe Ia) are considered the most reliable standard candles and they have played an invaluable role in cosmology since the discovery of the Universe's accelerated expansion. In...
Lecture 13: Gravitational waves
zhlédnutí 181Před 21 hodinou
Graduate course, Warsaw4PhD and GeoPlanet PhD schools Autumn/Winter Semester 2023-2024 Lecturer: Mikołaj Korzyński, Center for Theoretical Physics, Polish Academy of Sciences 00:00 Problem sheet 4 18:55 Gravitational waves - intro 25:57 GW in the linear approximation 32:02 Transverse traceless gauge 55:40 Break 55:58 Polarizations of GW 01:04:24 GW interacting with matter 01:15:52 Geodesic devi...
Dr. Oliver Reardon-Smith (CTP PAS): Classically simulating quantum computations
zhlédnutí 41Před 14 dny
Dr. Oliver Reardon-Smith (Center for Theoretical Physics, PAS). Classically simulating quantum computations. In addition to being of obvious practical use, classical simulations of quantum computations have interesting theoretical implications. Intuitively those computations which may be efficiently simulated by a classical computer are somehow "less quantum" while those which are prohibitively...
Lecture 12: Gravitational frequency shift, equations of motion, gravitational waves
zhlédnutí 65Před 14 dny
Graduate course, Warsaw4PhD and GeoPlanet PhD schools Autumn/Winter Semester 2023-2024 Lecturer: Mikołaj Korzyński, Center for Theoretical Physics, Polish Academy of Sciences 0:00 Linearized gravity 2:21 Symmetries and Killing vectors 28:44 Energy conservation 37:45 Gravitational frequency shift 55:13 Break 55:20 Equations of motion in the Newtonian approximation: massive particle 01:02:27 Equa...
P. Kurzynski (Adam Mickiewicz University): Detection of Quantum Chaos with Quantum Hamming Distance
zhlédnutí 703Před 14 dny
Paweł Kurzynski (Adam Mickiewicz University, Poznań, Poland). Detection of Quantum Chaos with Quantum Hamming Distance. The unitarity of quantum evolutions implies that the overlap between two initial states does not change in time. This property is commonly believed to explain the lack of state sensitivity in quantum theory, a feature that is prevailing in classical chaotic systems. However, a...
Pierwszy pomiar prędkości rotacji czarnej dziury przy pomocy „chyboczącej” materii gwiezdnej
zhlédnutí 319Před 21 dnem
Astronomowie, badając „chyboczącą” gwiezdną materię, po raz pierwszy zmierzyli prędkość rotacji supermasywnej czarnej dziury. Badania tego typu prowadzone na większą skalę w nadchodzących latach pozwolą na przyjrzenie się ewolucji czarnych dziur we Wszechświecie. Współautorkami publikacji w Nature są pracujące w CFT PAN Panie Profesorki Bożena Czerny i Agnieszka Janiuk. Oryginalny artykuł opisu...
Coral Skeletons: Interplay between Crystallographic Processes and Cellular, Physiological Mechanisms
zhlédnutí 78Před 21 dnem
Prof. Jarosław Stolarski (Institute of Paleobiology PAS, Warsaw). Coral Skeletons: the Interplay between Crystallographic Processes and Cellular, Physiological Mechanisms. One of the fundamental questions regarding the functioning of living organisms pertains to the extent to which their functions, tissue organization, and the formation of skeletal structures are influenced by physicochemical f...
Lecture 11: Christoffel symbols, linearized gravity, Newtonian approximation
zhlédnutí 103Před 21 dnem
Graduate course, Warsaw4PhD and GeoPlanet PhD schools Autumn/Winter Semester 2023-2024 Lecturer: Mikołaj Korzyński, Center for Theoretical Physics, Polish Academy of Sciences 0:00 Correction to the previous lecture 01:22 Problem sheet 3 34:28 Linearized gravity 55:44 Break 55:46 Problem sheet 4 57:46 Linearized gravity 01:33:52 Newtonian approximation
Dr P. Mróz: Toward the mass function of black holes with modern observations of microlensing events
zhlédnutí 141Před 28 dny
Dr Przemysław Mróz (Astronomical Observatory, University of Warsaw). Toward the mass function of black holes with modern observations of microlensing events. Gravitational-wave detectors - LIGO, Virgo, and KAGRA - have revealed a population of massive black holes whose origin is still a subject of vigorous debate. Understanding the population of black holes in the Milky Way is, therefore, key t...
Lecture 10: Riemann tensor, geodesic deviation equation, Einstein equations
zhlédnutí 84Před 28 dny
Graduate course, Warsaw4PhD and GeoPlanet PhD schools Autumn/Winter Semester 2023-2024 Lecturer: Mikołaj Korzyński, Center for Theoretical Physics, Polish Academy of Sciences 00:00-01:05 Problem sheets 01:05-10:09 Riemann in the Rindler’s accelerating spacetime 10:09-54:10 Geodesic deviation equation 54:10-54:20 Break 54:20-55:20 Geodesic deviation equation 55:20-01:14:35 Einstein equations 01:...
Jerzy Kijowski (CTP PAS): How to measure energy carried by gravitational waves: a pedestrian version
zhlédnutí 102Před měsícem
Prof. Jerzy Kijowski (Center for Theoretical Physics PAS). How to measure energy carried by gravitational waves: a pedestrian version of the Trautman-Bondi energy. Description of the field evolution is presented in terms of "radiation data" instead of "Cauchy data". The approach presented here is applicable to any radiating system. The Trautman-Bondi energy is then interpreted as the actual Ham...
Lecture 9: Riemann tensor
zhlédnutí 94Před měsícem
Graduate course, Warsaw4PhD and GeoPlanet PhD schools Autumn/Winter Semester 2023-2024 Lecturer: Mikołaj Korzyński, Center for Theoretical Physics, Polish Academy of Sciences 00:00-18:56 Christoffels, geodesics in the Newtonian approximation 18:56-40:40 Riemann tensor of a 2-sphere 40:40-01:02_48 Riemann in the Rindler’s accelerating spacetime
Sesja sprawozdawcza/Reporting session CTP PAS 22.03.2024
zhlédnutí 100Před měsícem
Sesja sprawozdawcza/Reporting session CTP PAS 22.03.2024
Lecture 8: Christoffel symbols, curvature, Riemann tensor
zhlédnutí 174Před měsícem
Lecture 8: Christoffel symbols, curvature, Riemann tensor
M. H. Mohammady (RCQI, IP SAS): Quantum measurements constrained by the third law of thermodynamics
zhlédnutí 105Před měsícem
M. H. Mohammady (RCQI, IP SAS): Quantum measurements constrained by the third law of thermodynamics
Mgr K. Schlichtholz: Mesoscopic description of entanglement of bosonic fields and its open evolution
zhlédnutí 64Před měsícem
Mgr K. Schlichtholz: Mesoscopic description of entanglement of bosonic fields and its open evolution
Lecture 7: Levi-Civita connection, Christoffel symbols, geodesics
zhlédnutí 87Před měsícem
Lecture 7: Levi-Civita connection, Christoffel symbols, geodesics
Dr Chiranjib Mukhopadhyay (UESTC, Chengdu, China): Modular Many-Body Quantum Sensors
zhlédnutí 108Před měsícem
Dr Chiranjib Mukhopadhyay (UESTC, Chengdu, China): Modular Many-Body Quantum Sensors
Prof. Paweł Nurowski (Center for Theoretical Physics PAS): What is an acoustic decaphonic piano?
zhlédnutí 101Před měsícem
Prof. Paweł Nurowski (Center for Theoretical Physics PAS): What is an acoustic decaphonic piano?
Lecture 6: Coordinate transformations, connection, pseudo-Riemannian manifolds
zhlédnutí 81Před měsícem
Lecture 6: Coordinate transformations, connection, pseudo-Riemannian manifolds
Lucas Tendick (Inria Paris-Saclay): Distributed Quantum Incompatibility
zhlédnutí 98Před měsícem
Lucas Tendick (Inria Paris-Saclay): Distributed Quantum Incompatibility
Dr. N. Shahamat (Isfahan Univ. of Technology): GRB central engines and electromagnetic transients
zhlédnutí 43Před 2 měsíci
Dr. N. Shahamat (Isfahan Univ. of Technology): GRB central engines and electromagnetic transients
Lecture 5: Manifolds, coordinates and tensors
zhlédnutí 123Před 2 měsíci
Lecture 5: Manifolds, coordinates and tensors
Dr. John Selby (University of Gdansk): Contextuality without incompatibility
zhlédnutí 71Před 2 měsíci
Dr. John Selby (University of Gdansk): Contextuality without incompatibility
Dr. Konrad Szymański (Universität Siegen): Reduction of noise effects in imperfect graph states
zhlédnutí 74Před 2 měsíci
Dr. Konrad Szymański (Universität Siegen): Reduction of noise effects in imperfect graph states
M. Lewenstein (Institute of Photonic Sciences, ICFO): Attoscience, Nobel 2023 and Quantum Simulators
zhlédnutí 72Před 2 měsíci
M. Lewenstein (Institute of Photonic Sciences, ICFO): Attoscience, Nobel 2023 and Quantum Simulators
Lecture 4: Special relativity, equivalence principle, Mach’s principle
zhlédnutí 69Před 2 měsíci
Lecture 4: Special relativity, equivalence principle, Mach’s principle