Claus Kiefer (Cologne): Origin of irreversibility in the universe

Claus Kiefer (University of Cologne) "Time in quantum cosmology"Подробнее

Claus Kiefer (Cologne): Decoherence of Schrödinger's cosmic catПодробнее

Claus Kiefer, « Conceptual Issues in Quantum Cosmology »Подробнее

8. Quantum Cosmology. Claus KieferПодробнее

Classical and quantum black holes in the Universe | prof. dr. Claus KieferПодробнее

prof. dr hab. Claus Kiefer - Quantum origin of the UniverseПодробнее

Does Time Exist at the Most Fundamental Level?Подробнее

2. The hot Universe. Claus KieferПодробнее

QG2023 - Claus Kiefer: Common Challenges in Quantum Gravity - Problem of TimeПодробнее

Claus Kiefer: "Does Time Exist in Quantum Gravity?", FQXi Azores Conference 2009Подробнее

Does the quantum mechanical wave function exist? Claus KieferПодробнее

2.1. Leptonic Phase & 2.2. Nucleosynthesis. Claus KieferПодробнее

3.3. Time dilation and Lorentz contraction. Claus Kiefer, Relativity and Cosmology I, WS 2021Подробнее

0. Overview & 1. The expanding UniverseПодробнее

Claus Kiefer on QUANTIZATIONПодробнее

Does Time Exist at the Most Fundamental Level? Claus KieferПодробнее

4. Gravitational instability in Newtonian theory. Claus KieferПодробнее