Seminari di Fisica Matematica a Roma Tre

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2013-14/

	Relatore	Titolo	Data
Seminari A.A. 2013-2014
	I Seminari si svolgono il martedì alle 14:30 nell'aula 311 del Dipartimento di Matematica (salvo diversa indicazione)

	Riccardo Adami Politecnico di Torino	Ground states for the nonlinear Schrödinger equation on graphs: to be or not to be?	08 Luglio 2014 (ore 16:00)

	Caludio Cacciapuoti Università dell'Insubria	Point-like limit for a NLS equation with spatially concentrated nonlinearity	24 Giugno 2014

	Francesco Zamponi ENS Paris	Exact computation of the critical exponents of the jamming transition	05 Giugno 2014 (giovedì)

	Robert Seiringer IST Austria	A positive density analogue of the Lieb-Thirring inequalities	15 Aprile 2014

	Ian Jauslin Università di Roma Tre	Onsager theory for long rods	25 Marzo 2014

	Alessandro Giuliani Università di Roma Tre	The free energy of the quantum Heisenberg ferromagnet: validity of the spin wave approximation	11 Marzo 2014

	Serena Cenatiempo ETH Zürich	Critical phases for non-relativistic two dimensional interacting bosons: Renormalization Group results	25 Febbraio 2014
	Abstract ritorna	Non-relativistic interacting bosons at zero temperature exhibit two interesting critical phases: the celebrated condensate phase and the critical theory at zero density, known as quantum critical point. From a theoretical point of view these theories are particularly challenging in dimension two, which is in both cases critical in the sense of Renormalization Group (RG). This is the method for understanding from first principles the emergence of scaling laws in interacting many body systems at low or zero temperatures, as well as for computing thermodynamic and correlation functions. In collaboration with A. Giuliani we proved renormalizability of the quantum critical point and of the condensed phase in two dimensions, both in the ultraviolet and in the infrared, and developed a theory valid at all orders in renormalized perturbation theory, with explicit bounds on the generic order. In this talk I will present these results and compare them with the existing literature. While the results obtained for the quantum critical case match with previous ones and extend them to all orders, we think that our findings call into question the stability of the two dimensional condensate at zero temperature.

	Vieri Mastropietro Università di Milano	Weyl semimetallic phase in an interacting lattice system	11 Febbraio 2014

	Giovanni Gallavotti INFN Roma 1 e Accademia dei Lincei	Matrici casuali e analiticità degli esponenti di Lyapunov	28 Gennaio 2014

	Federico Bonetto Georgia Institute of Technology	Non equilibrium steady state for a simple model of electric current	19 Dicembre 2013 (giovedì ore 16.00 aula 211)

	Paolo Buttà Università di Roma "La Sapienza"	Boundary effects in the van der Waals' theory of phase transition	12 Dicembre 2013 (giovedì ore 16.00)

	Jarmo Hietarinta University of Turku Finland	Integrable dynamics: practical applications and abstract theory	05 Dicembre 2013 (giovedì ore 16.00)

	Dimitrios Tsagkarogiannis University of Sussex	Decay of correlations and finite volume corrections for the free energy in the canonical ensemble	21 Novembre 2013 (giovedì ore 16.00)

	Joachim Kerner Royal Holloway University of London	Interacting many-particle systems and Bose-Einstein condensation on general compact quantum graphs	22 Ottobre 2013

	Maria G. Westdickenberg Aachen University	Order and disorder: The competition between energy and entropy in randomly perturbed systems	17 Settembre 2013 (aula 211)

Seminari di Fisica Matematica

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