Sep 7 – 9, 2021
Urbino/Palazzo Battiferri
Europe/Rome timezone

On a new Einstein field equation with possible application to black hole cosmology

Sep 7, 2021, 12:15 PM
15m
Urbino/Palazzo Battiferri

Urbino/Palazzo Battiferri

Via Aurelio Saffi, 42, 61029 Urbino PU
Gravity theory Gravity Theory

Speaker

Alice Roitberg (Università degli Studi di Milano - Bicocca)

Description

Here we consider the hydrodynamic form of the momentum equation associated with the Gross-Pitaevskii equation (GPE) in general Riemannian metric [1] and show that, under particular steady state conditions, a new Einstein field equation can be determined in presence of negative scalar curvature. Since GPE vortex defects in Bose-Einstein condensates are useful, analogue models in cosmology, a relativistic form of GPE is also considered on generic metric, in order to show connection with models of analogue gravity, thus providing physical background for mathematical modeling, and rigorous grounds for future investigations of black hole dynamics, Hawking radiation and curvature effects on physics [3].

This is joint work with Renzo L. Ricca (UniMiB).

[1] Roitberg, A. & Ricca, R.L. (2021) J. Phys. A: Math. Theor. 54, 315201.
[2] Roitberg, A. (2021) J. Phys.: Conf. Ser. 1730, 012017.
[3] Barceló, C., Liberati, S. & Visser, M. (2001) Class. Quantum Grav. 18, 1137.

Primary author

Alice Roitberg (Università degli Studi di Milano - Bicocca)

Presentation materials