QFC2017 - Quantum gases, fundamental interactions and cosmology

Session

Talks on Specific Topics - II

26 Oct 2017, 14:30

Aula Gerace

Conveners

Talks on Specific Topics - II

• Massimo D'Elia (PI)

8. Study of time -reversal violation in the two-nucleon system

Michele Viviani (PI)

26/10/2017, 14:30

talk

In this contribution, we present a theoretical study of time-reversal violation (TRV) in the two-nucleon system. The interest of this study is motivated by the fact that the nuclear TRV interaction is induced by flavour-diagonal CP violating terms present in the Standard Model (SM), in particular the theta-term, or by physics beyond the SM~[1]. Therefore, studying TRV-related observables...

2. Analogue Hawking radiation in a "flow of light"

Prof. Victor Fleurov (School of Physics and Astronomy, Tel Aviv University)

26/10/2017, 14:55

talk

Propagation of coherent light in a Kerr nonlinear medium can be mapped onto a flow of an equivalent fluid. Such an effective fluid possesses many features which allow us to treat it as a special type of quantum liquid. Here we use this mapping to model the conditions in the vicinity of a black hole horizon. To be more specific, a black hole horizon is modeled by means of a Laguerre-Gauss beam....

1. GINGER

Angela Dora Vittoria Di Virgilio (PI)

26/10/2017, 15:20

talk

GINGER (Gyroscopes IN General Relativity) is a proposal aiming at measuring the Lense-Thirring effect with an experiment based on Earth. It is based on an array of ring lasers, which are the most sensitive inertial sensors to measure the rotation rate of the Earth. GINGERINO is a ring laser prototype installed inside the underground laboratory of Gran Sasso. We describe the preliminary...

12. Efimov spectrum for N bosons

Dr Alejandro Kievsky (INFN)

26/10/2017, 16:15

talk

When the two-body scattering length $a$ of two identical bosons diverges the three-boson spectrum shows the Efimov effect. In this limit, the unitary limit, an infinite set of bound states, $E_3^n$, appears approaching zero in a geometrical progression. In other words, the $L=0$ sector of three identical bosons presents a discrete scaling invariance (DSI). As the absolute value of $a$...

4. An Effective Field Theory for Black Hole perturbations: testing extensions to GR with gravitational waves

Enrico Trincherini (SNS)

26/10/2017, 16:40

talk

The recent observation of gravitational waves from merging black holes (BH) opens up the possibility of exploring the theory of gravity at an unprecedented level. It is therefore important to understand if and which modifications of General Relativity (GR) could be observed. I will show how the most convenient approach to address this question is to resort to a maximally model-independent,...

0. Quantized vortices in two-dimensional ultracold Fermi gases

Prof. Luca Salasnich (University of Padova)

26/10/2017, 17:05

talk

In two-dimensional superfluids quantized vortices play a key role in determining finite-temperature properties, as the superfluid phase and the normal state are separated by a vortex unbinding transition, the Berezinskii-Kosterlitz-Thouless transition. Very recent experiments with two-dimensional superfluid fermions [1] motivate the present work: we present theoretical results [2] based on...

18. AX-Gadget, a N-Body hydrodynamical code for axion cosmology simulations

Matteo Nori (BO)

26/10/2017, 17:30

I am going to present a new module of the parallel N-Body code P-GADGET3, called AX-Gadget, that is able to perform cosmological hydrodynamical simulations with light bosonic non-thermal dark matter, often referred as Fuzzy dark matter (FDM). The dynamics of the FDM features a highly non-linear quantum potential (QP) suppressing the growth of structures at small scales. Previous attempts of...