Publications (27)
Quantum-to-classical transition for fluctuations in the early Universe
C. Kiefer, D. Polarski, A. A. Starobinsky
Wheeler-DeWitt equation and Feynman diagrams
A. O. Barvinsky, C. Kiefer
Consistency of Semiclassical Gravity
D. Giulini, C. Kiefer
Higgs boson, renormalization group, and naturalness in cosmology
A. O. Barvinsky, A. Yu. Kamenshchik, C. Kiefer +2
Origin of the inflationary Universe
A. Barvinsky, A. Kamenshchik, C. Kiefer
A Mission to Explore the Pioneer Anomaly
The Pioneer Explorer Collaboration, H. Dittus, S. G. Turyshev +37
Wheeler-Dewitt Metric and the Attractivity of Gravity
D. Giulini, C. Kiefer
Semiclassical Gravity and the Problem of Time
C. Kiefer
Effective action and decoherence by fermions in quantum cosmology
A. Barvinsky, A. Kamenshchik, C. Kiefer
Semiclassical Black Hole States and Entropy
T. Brotz, C. Kiefer
Emergence of classicality for primordial fluctuations: Concepts and analogies
C. Kiefer, D. Polarski
Topology, Decoherence, and Semiclassical Gravity
C. Kiefer
Entropy of gravitons produced in the early Universe
C. Kiefer, D. Polarski, A. A. Starobinsky
Ehrenfest's Principle and the Problem of Time in Quantum Gravity
T. Brotz, C. Kiefer
The semiclassical approximation to quantum gravity
C. Kiefer
Pointer states for primordial fluctuations in inflationary cosmology
C. Kiefer, I. Lohmar, D. Polarski +1
Embedding variables in the canonical theory of gravitating shells
P. Hajicek, C. Kiefer
Effective action and heat kernel in a toy model of brane-induced gravity
A. O. Barvinsky, A. Yu. Kamenshchik, C. Kiefer +1
Hawking radiation from the quantum Lemaitre-Tolman-Bondi model
C. Kiefer, J. Mueller-Hill, T. P. Singh +1
Symmetries, superselection rules, and decoherence
D. Giulini, C. Kiefer, H. D. Zeh
Decoherence of Black Holes by Hawking Radiation
J. -G. Demers, C. Kiefer
Decoherence in quantum cosmology at the onset of inflation
A. Barvinsky, A. Kamenshchik, C. Kiefer +1
Quantum cosmology and the emergence of a classical world
C. Kiefer
Arrow of time in a recollapsing quantum universe
C. Kiefer, H. D. Zeh
Wigner function and decoherence
C. Kiefer
Asymptotic freedom in inflationary cosmology with a non-minimally coupled Higgs field
A. O. Barvinsky, A. Yu. Kamenshchik, C. Kiefer +2
Phase transitions, massive gravitons and effective action in braneworld theory
A. O. Barvinsky, A. Yu. Kamenshchik, C. Kiefer +1