Tatevik Vardanyan
Tatevik Vardanyan
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8. Quantum Cosmology. Claus Kiefer
Course: Quantum gravity
Details of the course can be found on www.thp.uni-koeln.de/gravitation/courses/qg2024.html
Lecturer: Prof. Dr. Claus Kiefer
University of Cologne, Summer term 2024
มุมมอง: 27

วีดีโอ

7. Quantization of black holes. Claus Kiefer7. Quantization of black holes. Claus Kiefer
7. Quantization of black holes. Claus Kiefer
มุมมอง 1333 หลายเดือนก่อน
Course: Quantum gravityDetails of the course can be found onwww.thp.uni-koeln.de/gravitation/courses/qg2024.html Lecturer: Prof. Dr. Claus Kiefer University of Cologne, Summer term 2024
6. Loop Quantum Gravity. Claus Kiefer6. Loop Quantum Gravity. Claus Kiefer
6. Loop Quantum Gravity. Claus Kiefer
มุมมอง 1773 หลายเดือนก่อน
Course: Quantum gravityDetails of the course can be found on www.thp.uni-koeln.de/gravitation/courses/qg2024.html Lecturer: Prof. Dr. Claus Kiefer University of Cologne, Summer term 2024
Semiclassical approximation. Claus KieferSemiclassical approximation. Claus Kiefer
Semiclassical approximation. Claus Kiefer
มุมมอง 753 หลายเดือนก่อน
Course: Quantum gravityDetails of the course can be found on www.thp.uni-koeln.de/gravitation/courses/qg2024.html Lecturer: Prof. Dr. Claus Kiefer University of Cologne, Summer term 2024
5. Quantum geometrodynamics. Claus Kiefer5. Quantum geometrodynamics. Claus Kiefer
5. Quantum geometrodynamics. Claus Kiefer
มุมมอง 5984 หลายเดือนก่อน
Course: Quantum gravity Details of the course can be found on www.thp.uni-koeln.de/gravitation/courses/qg2024.html Lecturer: Prof. Dr. Claus Kiefer University of Cologne, Summer term 2024
4. Hamiltonian formulation of general relativity. Claus Kiefer4. Hamiltonian formulation of general relativity. Claus Kiefer
4. Hamiltonian formulation of general relativity. Claus Kiefer
มุมมอง 1024 หลายเดือนก่อน
Course: Quantum gravity Details of the course can be found on www.thp.uni-koeln.de/gravitation/courses/qg2024.html Lecturer: Prof. Dr. Claus Kiefer University of Cologne, Summer term 2024
3.3. Parametrized field theories. Claus Kiefer3.3. Parametrized field theories. Claus Kiefer
3.3. Parametrized field theories. Claus Kiefer
มุมมอง 454 หลายเดือนก่อน
Course: Quantum gravity Details of the course can be found on www.thp.uni-koeln.de/gravitation/courses/qg2024.html Lecturer: Prof. Dr. Claus Kiefer University of Cologne, Summer term 2024
3. Parametrized and relational systems & 3.1. Particle systems & 3.2. Free bosonic string. C. Kiefer3. Parametrized and relational systems & 3.1. Particle systems & 3.2. Free bosonic string. C. Kiefer
3. Parametrized and relational systems & 3.1. Particle systems & 3.2. Free bosonic string. C. Kiefer
มุมมอง 2145 หลายเดือนก่อน
Course: Quantum gravity Details of the course can be found on www.thp.uni-koeln.de/gravitation/courses/qg2024.html Lecturer: Prof. Dr. Claus Kiefer University of Cologne, Summer term 2024 00:00 3. Parametrized and relational systems 02:32 3.1. Particle systems 58:37 3.2. Free bosonic string
2.2. Path-integral quantization. Claus Kiefer2.2. Path-integral quantization. Claus Kiefer
2.2. Path-integral quantization. Claus Kiefer
มุมมอง 1152 ปีที่แล้ว
Course: Quantum gravity Details of the course can be found on thp.uni-koeln.de/gravitation/courses/qg2022.html Lecturer: Prof. Dr. Claus Kiefer University of Cologne, summer term 2022 08:56 2.2. Path-integral quantization
2. Covariant approaches to quantum gravity & 2.1. The concept of a graviton. Claus Kiefer2. Covariant approaches to quantum gravity & 2.1. The concept of a graviton. Claus Kiefer
2. Covariant approaches to quantum gravity & 2.1. The concept of a graviton. Claus Kiefer
มุมมอง 842 ปีที่แล้ว
Course: Quantum gravity Details of the course can be found on thp.uni-koeln.de/gravitation/courses/qg2022.html Lecturer: Prof. Dr. Claus Kiefer University of Cologne, summer term 2022
1.2. Problems of a fundamentally semiclassical theory & 1.3. Approaches to quantum gravity1.2. Problems of a fundamentally semiclassical theory & 1.3. Approaches to quantum gravity
1.2. Problems of a fundamentally semiclassical theory & 1.3. Approaches to quantum gravity
มุมมอง 1102 ปีที่แล้ว
Course: Quantum gravity Details of the course can be found on thp.uni-koeln.de/gravitation/courses/qg2022.html Lecturer: Prof. Dr. Claus Kiefer University of Cologne, summer term 2022 00:00 1.2. Problems of a fundamentally semiclassical theory 1:08:55 1.3. Approaches to quantum gravity
0. Overview & 1.Why Quantum Gravity? & 1.1. Quantum theory and the gravitational field. Claus Kiefer0. Overview & 1.Why Quantum Gravity? & 1.1. Quantum theory and the gravitational field. Claus Kiefer
0. Overview & 1.Why Quantum Gravity? & 1.1. Quantum theory and the gravitational field. Claus Kiefer
มุมมอง 2852 ปีที่แล้ว
Course: Quantum gravity Details of the course can be found on www.thp.uni-koeln.de/gravitation/courses/qg2022.html Lecturer: Prof. Dr. Claus Kiefer University of Cologne, summer term 2022 00:00 Overview 10:08 Why Quantum Gravity? 10:32 1.1. Quantum theory and the gravitational field
5. Gravitational instability in GR (continued) & 6. Inflation II. Claus Kiefer5. Gravitational instability in GR (continued) & 6. Inflation II. Claus Kiefer
5. Gravitational instability in GR (continued) & 6. Inflation II. Claus Kiefer
มุมมอง 672 ปีที่แล้ว
Course: The Early Universe Details of the course can be found on thp.uni-koeln.de/gravitation/courses/eu2122.html Lecturer: Prof. Dr. Claus Kiefer University of Cologne, winter term 2021/22
4. Gravitational instability in Newtonian theory (continued) & 5. Gravitational instability in GR4. Gravitational instability in Newtonian theory (continued) & 5. Gravitational instability in GR
4. Gravitational instability in Newtonian theory (continued) & 5. Gravitational instability in GR
มุมมอง 762 ปีที่แล้ว
Course: The Early Universe Details of the course can be found on thp.uni-koeln.de/gravitation/courses/eu2122.html Lecturer: Prof. Dr. Claus Kiefer University of Cologne, winter term 2021/22
4. Gravitational instability in Newtonian theory. Claus Kiefer4. Gravitational instability in Newtonian theory. Claus Kiefer
4. Gravitational instability in Newtonian theory. Claus Kiefer
มุมมอง 1022 ปีที่แล้ว
Course: The Early Universe Details of the course can be found on thp.uni-koeln.de/gravitation/courses/eu2122.html Lecturer: Prof. Dr. Claus Kiefer University of Cologne, winter term 2021/22

ความคิดเห็น

  • @shawns0762
    @shawns0762 3 หลายเดือนก่อน

    There are on black holes. General Relativity predicts dilation, not singularities. Dilation explains dark matter/galaxy rotation curves. In the 1939 journal "Annals of Mathematics" Einstein wrote - "The essential result of this investigation is a clear understanding as to why the Schwarzchild singularities (Schwarzchild was the first to raise the issue of General Relativity predicting singularities) do not exist in physical reality. Although the theory given here treats only clusters (star clusters) whose particles move along circular paths it does seem to be subject to reasonable doubt that more general cases will have analogous results. The Schwarzchild singularities do not appear for the reason that matter cannot be concentrated arbitrarily. And this is due to the fact that otherwise the constituting particles would reach the velocity of light." He was referring to the phenomenon of dilation. Mass that is dilated is smeared through spacetime relative to an outside observer. It's the phenomenon behind the phrase "mass becomes infinite at the speed of light". A graph illustrates its squared nature, dilation increases at an exponential rate the closer you get to the speed of light. A time dilation graph illustrates the same phenomenon, it's not just time that gets dilated. Dilation will occur wherever there is an astronomical quantity of mass because high mass means high momentum. This includes the centers of very high mass stars and the overwhelming majority of galaxy centers. The mass at the center of our own galaxy is dilated. This means that there is no valid XYZ coordinate we can attribute to it, you can't point your finger at something that is smeared through spacetime. In other words that mass is all around us. Dilation does not occur in galaxies with low mass centers because they do not have enough mass to achieve relativistic velocities. It has been confirmed in 6 very low mass galaxies including NGC 1052-DF2 and DF4 to have no dark matter, in other words they have normal rotation rates. All binary stars have normal rotation rates for the same reason.

  • @P-zp4qs
    @P-zp4qs 3 หลายเดือนก่อน

    Kerr to Schwarzschild to white transition during the thermal death

  • @williamyang7938
    @williamyang7938 ปีที่แล้ว

    Very good video, will this series be updated?

  • @harshshah670
    @harshshah670 2 ปีที่แล้ว

    Thanks