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Francesca Vidotto


  • Quantum Gravity

  • Cosmology

  • Foundations of Physics



Assistant Professor;
Department of Applied Mathematics, and Department of Philosophy, Western University

Francesca Vidotto is a researcher in theoretical physics, with interests in quantum gravity,
quantum cosmology, quantum field theory, and the history and philosophy of science. She is cross-appointed to the Departments of Applied Mathematics and Philosophy at Western University.

I’m fascinated by fundamental questions: what is space? what is time? where does matter come from? how can a new understanding of these issues provide us a better description of the evolution of the universe?

With these questions in mind, I would like to address the open problems in early cosmology, exploring the regime where a quantum theory of gravity is needed. I think there should be a particular attention in trying to apply our knowledge in quantum gravity to cosmology as much as we can, as cosmology is by far the best window to observe signatures of quantum gravity in the near future.

My work is focused on Loop Quantum Gravity (LQG), one of the main approaches to the quantization of gravity. It has been approximately a decade since the techniques of loop quantization were first used in cosmology, giving life to an active sub-field, that goes under the name of Loop Quantum Cosmology (LQC). In LQG, the dynamics can be expressed using two different languages: the canonical one, given using a Hamiltonian, and the covariant one, where dynamics is coded by a transition amplitude obtained summing over histories. The Spinfoam theory is this covariant version of LQG. In this formalism the amplitudes give the probability to pass from a given configuration of space- time to another.

I have applied for the first time the covariant formalism to cosmology. I have proposed a covariant version of quantum cosmology based on the complete LQG quantum theory (where symmetries are not implemented before the quantization). This is a new approach to quantum cosmology, called Spinfoam Cosmology.

Prospects for Fundamental Physics with LISA

Enrico Barausse (INFN, Trieste and SISSA, Trieste and Trieste U. and Paris, Inst. Astrophys.), Emanuele Berti (Johns Hopkins U.), Thomas Hertog (Leuven U.), Scott A. Hughes (MIT and MIT, MKI), Philippe Jetzer(Zurich U.) et al. e-Print: 2001.09793 [gr-qc] DOI: 10.1007/s10714-020-02691-1 (publication)

Published in: Gen.Rel.Grav. 52 (2020) 8, 81

Primordial fluctuations from quantum gravity

Francesco Gozzini (Marseille, CPT and Trento U. and TIFPA-INFN, Trento), Francesca Vidotto (Western Ontario U. and Basque U., Bilbao) e-Print: 1906.02211 [gr-qc]

Electromagnetic probes of primordial black holes as dark matter

A. Kashlinsky (NASA, Goddard and SSAI, Lanham), Y. Ali-Haimoud (New York U.), S. Clesse (Louvain U. and Namur U.), J. Garcia-Bellido (Madrid, IFT and CSIC, Madrid), L. Wyrzykowski (Warsaw U.) et al. e-Print: 1903.04424 [astro-ph.CO]

Quantum insights on Primordial Black Holes as Dark Matter

Francesca Vidotto (U. Basque Country, Leioa) e-Print: 1811.08007 [gr-qc] DOI: 10.22323/1.335.0046

Published in: PoS EDSU2018 (2018), 046

Fundamental physics with the Square Kilometre Array

A. Weltman (Cape Town U.), P. Bull (UC, Berkeley), S. Camera (Cape Town U. and INFN, Turin and OATo, Turin and Turin U.), K. Kelley (LLNL, Livermore), H. Padmanabhan (ETH, Zurich (main)) et al. e-Print: 1810.02680 [astro-ph.CO] DOI: 10.1017/pasa.2019.42 (publication)

Published in: Publ.Astron.Soc.Austral. 37 (2020), e002

Small black/white hole stability and dark matter

Carlo Rovelli (Marseille, CPT), Francesca Vidotto (Basque U., Bilbao) e-Print: 1805.03872 [gr-qc] DOI: 10.3390/universe4110127 (publication)

Published in: Universe 4 (2018) 11, 127

Pre-Big-Bang Black-Hole Remnants and Past Low Entropy

Carlo Rovelli (Marseille, CPT), Francesca Vidotto (Basque U., Bilbao) e-Print: 1805.03224 [gr-qc] DOI: 10.3390/universe4110129 (publication)

Published in: Universe 4 (2018) 11, 129

White-hole dark matter and the origin of past low-entropy

Carlo Rovelli (Marseille, CPT), Francesca Vidotto (U. Basque Country, Leioa) e-Print: 1804.04147 [gr-qc]

Measuring the last burst of non-singular black holes

Francesca Vidotto (Basque U., Bilbao) e-Print: 1803.02755 [gr-qc] DOI: 10.1007/s10701-018-0190-z (publication)

Published in: Found.Phys. 48 (2018) 10, 1380-1392