Former group member as postdoctoral fellow (01.10.2014 – 30.04.2018)

Further affiliation:
Institute for Theoretical Physics
KU Leuven, Belgium
 

Research interests

• Canonical quantum gravity and quantum cosmology
  »  Quantum-gravitational effects for inflationary perturbations and their imprint in the cosmic microwave background
  »  Singularity resolution in quantum-cosmological models
  »  Entanglement in quantum universes with varying fundamental couplings
  »  The multiverse from the third quantization formalism and its observational consequences

 
List of publications

»  INSPIRE publication list        »  INSPIRE profile

1. Mariam Bouhmadi-López, Manuel Krämer, João Morais, and Salvador Robles-Pérez,
   The interacting multiverse and its effect on the cosmic microwave background,
   Journal of Cosmology and Astroparticle Physics 02, 057 (2019), arXiv:1809.09133.
    
2. João Morais, Mariam Bouhmadi-López, Manuel Krämer, and Salvador Robles-Pérez,
   Pre-inflation from the multiverse: Can it solve the quadrupole problem in the cosmic microwave background?,
   European Physical Journal C 78, 240 (2018), arXiv:1711.05138.
    
3. Mariam Bouhmadi-López, Manuel Krämer, João Morais, and Salvador Robles-Pérez,
   What if? Exploring the Multiverse through Euclidean wormholes,
   European Physical Journal C 77, 718 (2017), arXiv:1708.00025.
    
4. Salvador Robles-Pérez, Adam Balcerzak, Mariusz P. Dąbrowski, and Manuel Krämer,
   Interuniversal entanglement in a cyclic multiverse,
   Physical Review D 95, 083505 (2017), arXiv:1701.04773.
    
5. David Brizuela, Claus Kiefer, and Manuel Krämer,
   Quantum-gravitational effects on gauge-invariant scalar and tensor perturbations during inflation: The slow-roll approximation,
   Physical Review D 94, 123527 (2016), arXiv:1611.02932.
    
6. David Brizuela, Claus Kiefer, and Manuel Krämer,
   Quantum-gravitational effects on gauge-invariant scalar and tensor perturbations during inflation: The de Sitter case,
   Physical Review D 93, 104035 (2016), arXiv:1511.05545.
    
7. Mariam Bouhmadi-López, Claus Kiefer, and Manuel Krämer,
   Resolution of type IV singularities in quantum cosmology,
   Physical Review D 89, 064016 (2014), arXiv:1312.5976.
    
8. Donato Bini, Giampiero Esposito, Claus Kiefer, Manuel Krämer, and Francesco Pessina,
   On the modification of the cosmic microwave background anisotropy spectrum from canonical quantum gravity,
   Physical Review D 87, 104008 (2013), arXiv:1303.0531.
    
9. Claus Kiefer and Manuel Krämer,
   Quantum Gravitational Contributions to the Cosmic Microwave Background Anisotropy Spectrum,
   Physical Review Letters 108, 021301 (2012), arXiv:1103.4967.

 
Essays

• • David Brizuela and Manuel Krämer,
    The Search for a Tiny Hint from Quantum Gravity in the Cosmic Relic Radiation,
    in: S. Hossenfelder (Ed.), Experimental Search for Quantum Gravity,
    FIAS Interdisciplinary Science Series, Springer, 2018, pp. 9–14 (published online: November 2017).
     
    • Claus Kiefer and Manuel Krämer,
      Can effects of quantum gravity be observed in the cosmic microwave background?,
      International Journal of Modern Physics D 21, 1241001 (2012), arXiv:1205.5161.
      »  First Award in the 2012 Essay Contest of the Gravity Research Foundation

 
Talks at conferences and institute seminars

• • • Multiverse models in canonical quantum cosmology and their testability
      Talk at the Wednesday Seminar of the Institute of Physics, University of Szczecin – April 18, 2018
    • Pre-inflation from the multiverse and its effect on the cosmic microwave background
      DPG-Frühjahrstagung, Würzburg – March 23, 2018
    • Quantum Gravity in the CMB: From semiclassical effects to imprints of the multiverse
      Seminar talk at the Department of Theoretical Physics and History of Science, University of the Basque Country (UPV/EHU), Bilbao – November 20, 2017
    • Quantum-gravitational effects on primordial power spectra in slow-roll inflationary models
      IV Cosmology and the Quantum Vacuum, Segovia – September 5, 2017
      »  Proceedings contribution: David Brizuela and Manuel Krämer, Galaxies 6, 6 (2018).
    • Applications of the third quantization formalism
      Talk at the Group Seminar of the Gravitation and Relativity Group, University of Cologne – April 18, 2017
    • Interuniversal entanglement in cyclic multiverse models
      IberiCos 2017, Valencia – April 12, 2017
    • Inter-universal entanglement in a cyclic multiverse model
      DPG-Frühjahrstagung, Bremen – March 17, 2017
    • Inter-universal entanglement in a cyclic multiverse
      Segundo Encontro de Cosmologia e Gravitação à beira da Serra da Estrela, Universidade da Beira Interior, Covilhã, Portugal – February 11, 2017
    • Singularity resolution in Wheeler–DeWitt quantum cosmology
      Invited talk at the conference “Singularities of general relativity and their quantum fate”, IMPAN, Warsaw – June 29, 2016
    • Quantum cosmology and applications of the Wheeler–DeWitt equation
      Talk at the Institute Seminar of the Institute of Theoretical Physics, University of Wrocław – April 22, 2016
    • Effects of canonical quantum gravity on inflationary perturbations
      IberiCos 2016, Vila do Conde, Portugal – March 31, 2016
    • How does canonical quantum gravity affect inflationary perturbations?
      DPG-Frühjahrstagung, Hamburg – March 3, 2016
    • How does canonical quantum gravity affect scalar and tensor perturbations during inflation?
      19th annual International Conference on Particle Physics and Cosmology (COSMO-15), Warsaw – September 8, 2015
    • Quantum entanglement in the multiverse
      Spring Cosmology Meeting 2015, Międzywodzie – May 9, 2015
    • Quantum-gravitational effects for inflationary perturbations
      Talk at the Seminar of Cosmology and Particle Physics at the Faculty of Physics, University of Warsaw – April 21, 2015
    • Quantum gravity, inflation and the Cosmic Microwave Background
      Talk at the Wednesday Seminar at the Institute of Physics, University of Szczecin – April 15, 2015
    • Quantum-gravitational effects on scalar and tensor perturbations during inflation
      DPG-Frühjahrstagung, TU Berlin – March 17, 2015
    • Resolution of late-time singularities in quantum cosmology
      14th British Gravity Meeting, Cambridge – April 1, 2014
    • Recent applications of Wheeler–DeWitt quantum cosmology
      Invited talk at the Friday Seminar of the Szczecin Cosmology Group, University of Szczecin – March 21, 2014
    • Resolution of type IV singularities in quantum cosmology
      DPG-Frühjahrstagung, HU Berlin – March 17, 2014
    • Applications of Quantum Cosmology
      Invited talk at the seminar “Theorie-Palaver”, Institut für Physik, Johannes Gutenberg-Universität Mainz – January 28, 2014
    • Potential observational effects from Wheeler–DeWitt quantum cosmology
      »  Strings, Cosmology and Gravity Student Conference 2013, MPI für Physik, Munich – November 9, 2013 » Slides
      »  LOOPS 13, Perimeter Institute, Waterloo, Ontario, Canada – July 23, 2013 » Recorded talk
    • Potential observational effects from a semiclassical approximation to Quantum Gravity
      20th International Conference on General Relativity and Gravitation (GR20), Warsaw – July 12, 2013
    • The modification of the primordial power spectrum from canonical quantum gravity
      8. Kosmologietag, Bielefeld – April 26, 2013
    • Singularity avoidance in quantum cosmology
      DPG-Frühjahrstagung, Jena – March 1, 2013
    • Can effects of quantum gravity be observed in the cosmic microwave background?
      »  Postgrad Encounters on Fundamental Physics, Barcelona – October 18, 2012
      »  13th Marcel Grossmann Meeting, Stockholm – July 2, 2012  »  Proceedings contribution: arXiv:1303.1544
      »  Relativity and Gravitation – 100 Years after Einstein in Prague, Prague – June 27, 2012
      »  Group Seminar of the Gravitational Physics Group at the Instituto de Estructura de la Materia, Madrid – June 11, 2012
    • Quantum gravitational effects for cosmological perturbations
      DPG-Frühjahrstagung, Göttingen – March 1, 2012
    • Quantum Gravitational Contributions to the CMB Anisotropy Spectrum
      »  4th Strings, Cosmology and Gravity Student Conference (SCGSC), London – November 3, 2011
      »  6. Kosmologietag, Bielefeld – May 5, 2011
      »  DPG-Frühjahrstagung, Karlsruhe – March 28, 2011

 
Talks at the Friday Seminars of the Szczecin Cosmology Group

• • The interacting multiverse and its effect on the CMB – March 9, 2018
  • The recent debate about the no-boundary proposal – January 19, 2018
  • Wormholes and entanglement – December 8, 2017
  • Pre-inflation from the multiverse and its effect on the CMB – October 13, 2017
  • Imprints of an interacting multiverse in the CMB power spectrum – March 3, 2017
  • Quantum-gravitational effects on primordial power spectra in the slow-roll approximation – January 13, 2017
  • Entanglement in a cyclic multiverse – October 14, 2016
  • Interacting universes – June 10, 2016
  • Third quantization and varying constants – October 16, 2015
  • Quantum-gravitational effects on scalar and tensor perturbations during inflation – December 12, 2014