Matteo Smerlak

Research Interests

General relativity is our fundamental theory of space, time and gravity; it successfully accounts for such awe-inspiring phenomena as black hole formation and cosmological expansion. But it is also much more than that. Its geometric formulation, based on the concept of curved spacetime, provides a powerful framework to describe a variety of condensed-matter systems, from inhomogeneous fluid flows to Bose-Einstein condensates and gradient-index dielectrics. In my view, these "gravitational analogues'' or "analogue spacetimes'', offer a splendid opportunity to push further the boundaries of general relativity itself, especially where it interfaces with (i) quantum mechanics and (ii) equilibrium and non-equilibrium statistical mechanics.

My main research goal is to explore these interfaces to gain a better understanding of the relationships between fluctuations and gravity. The famous Hawking effect, whereby vacuum fluctuations are amplified and rectified into an outgoing flux of thermal particles, is a foremost example of the surprising phenomena arising at this interface. In a nutshell, I intend to make sense of the notion that "fluctuations are rectified by gravity'' in a broader sense. This investigation will lead me, I hope, to a deeper understanding of black hole thermodynamics.

I also entertain various research interests outside of gravitational physics. Recently these have included, among others: the robustness properties of banking networks (macro-economics), the statistical mechanics of Darwinian evolution (biology) and the stability properties of predator-prey dynamics (ecology). I am looking forward to discussing with anybody interested in these topics!

Positions Held

• 2012 Riemann Fellow, Riemann Center for Physics and Geometry (Hannover, Germany)
• 2011 - 2013 Junior Scientist, Albert Einstein Institute for Gravitational Physics (Potsdam, Germany)
• 2009 - 2011 Teaching assistant, Université de la Méditerranée (Marseille, France)
• 2007 - 2008 Teaching assistant, African Institute for the Mathematical Sciences (Cape Town, South Africa)
• 2006 - 2007 Physics tutor in experimental affirmative action class, Lycée Henri IV (Paris, France)

Awards

• Honorable Mention, Gravity Research Foundation Essay Competition 2013

Recent Publications

• Eugenio Bianchi, Matteo Smerlak, Last gasp of a black hole: unitary evaporation implies non-monotonic mass loss, Gen. Relativ. Gravit. 46, 1809 (2014), arXiv: 1405.5235
• Eugenio Bianchi, Matteo Smerlak, Entanglement entropy and negative energy in two dimensions, Phys. Rev. D 90, 041904(R) (2014), arXiv: 1404.0602
• Thermodynamics of inequalities: from precariousness to economic stratification, Matteo Smerlak, arXiv: 1406.6441
• Mapping systemic risk: critical degree and failures distribution in financial networks, Matteo Smerlak, Brady Stoll, Agam Gupta, James S. Magdanz, arXiv: 1402.4783
• Einstein2: Brownian Motion Meets General Relativity in Analogue Gravity Phenomenology (Faccio, Belgiorno, Cacciatori, Gorini, Liberati, Moschella eds), Springer, Lecture Notes in Physics 870, 2013

Seminars

• Last gasp of a black hole: why unitary evaporation must be non-monotonic, 15th Canadian Conference on General Relativity and Relativistic Astrophysics, Winnipeg, Canada