Oliver Janssen

Postdoctoral Fellows
Postdoctoral Fellow
Oliver Janssen
High Energy, Cosmology and Astroparticle Physics
+39 040 2240 370
ojanssen@ictp.it
+39 040 2240 370
ojanssen@ictp.it
LB-266
https://inspirehep.net/authors/1380391
0000-0001-7911-9992

Oliver Janssen

Oliver works on various topics in high energy physics, with an emphasis on theoretical cosmology. These topics include constraints on low-energy effective field theories from a consistent embedding in a healthy ultra-violet complete theory, the path integral in quantum gravity, and the question of how to make predictions in a multiverse theory.

Publications

Preprint
2023
The KS-criterion constrains inflation in the no-boundary state
Thomas Hertog | Oliver Janssen | Joel Karlsson
Preprint
2022
Positivity bounds on effective field theories with spontaneously broken Lorentz invariance
Journal of High Energy Physics (2022)
Paolo Creminelli | Oliver Janssen | Leonardo Senatore
Preprint
2021
Gravity as an ensemble and the moment problem
Journal of High Energy Physics (2021)
Oliver Janssen | Mehrdad Mirbabayi | Peter Zograf
Preprint
2021
Low-temperature entropy in JT gravity
Journal of High Energy Physics (2021)
Oliver Janssen | Mehrdad Mirbabayi
Preprint
2020
Decoherence: A Numerical Study
Journal of Physics A: Mathematical and Theoretical (2020)
Chris Nagele | Oliver Janssen | Matthew Kleban
Preprint
2020
Slow-roll approximation in quantum cosmology
Classical and Quantum Gravity (2020)
Oliver Janssen
Preprint
2019
The no-boundary proposal in biaxial Bianchi IX minisuperspace
Oliver Janssen | Jonathan J. Halliwell | Thomas Hertog
Preprint
2019
The Axidental Universe
Thomas C. Bachlechner | Kate Eckerle | Oliver Janssen | Matthew Kleban
Journal article
2019
No-boundary proposal in biaxial Bianchi IX minisuperspace
Physical Review D (2019)
O. Janssen | J. J. Halliwell | T. Hertog
Preprint
2018
Axion Landscape Cosmology
Thomas C. Bachlechner | Kate Eckerle | Oliver Janssen | Matthew Kleban
Preprint
2018
Damped perturbations in the no-boundary state
Juan Diaz Dorronsoro | Jonathan J. Halliwell | James B. Hartle | Thomas Hertog | Oliver Janssen | Yannick Vreys
Preprint
2017
The Real No-Boundary Wave Function in Lorentzian Quantum Cosmology
Juan Diaz Dorronsoro | Jonathan J. Halliwell | James B. Hartle | Thomas Hertog | Oliver Janssen
Preprint
2017
Axions of Evil
Thomas C. Bachlechner | Kate Eckerle | Oliver Janssen | Matthew Kleban
Preprint
2017
Systematics of Aligned Axions
Thomas C. Bachlechner | Kate Eckerle | Oliver Janssen | Matthew Kleban
Preprint
2015
Sharp Predictions from Eternal Inflation Patches in D-brane Inflation
Thomas Hertog | Oliver Janssen
Preprint
2015
Phase Diagram of Dynamical Twisted Mass Wilson Fermions at Finite Isospin Chemical Potential
Oliver Janssen | Mario Kieburg | K. Splittorff | Jacobus J. M. Verbaarschot | Savvas Zafeiropoulos

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