|Friday 23 February 2024
|Events for day: Wednesday 07 February 2024
| 13:30 - 15:00 Weekly Seminar
Tail diversity from inflation
The tail of the distribution of primordial fluctuations (corresponding to the likelihood of realization of large fluctuations) is of interest from both theoretical and observational perspectives. In particular, it is relevant for accurately evaluating the primordial black hole (PBH) abundance. Our work delves into a non-perturbative approach, utilizing the ?N formalism, to rigorously analyze the probability distribution function (PDF) of these fluctuations. We scrutinize the assumptions and subtleties inherent in this formalism, especially in the context of large fluctuations, and apply our methodology to a spectrum of non-attractor single-fi ...
14:00 - 15:00 Weekly Seminar
Characterization of Biological Entities with Shadowgraph Imaging and Photoacoustic Viscoelasticity
Shadowgraph imaging is a powerful optical technique for visualizing density gradients in transparent media. In the context of measuring thermal conductivity, shadowgraph imaging can be employed to study the behavior of heat flow in various materials. By capturing the way light is refracted by these density variations, valuable insights into the thermal properties of the material can be obtained. In our recent work, to investigate the thermal conductivity of biological tissues in presence of nanostructures, shadowgraph imaging has been employed with the aim of software implementation of lock-in amplification.
Photoacoustic viscoelastici ...