Spin of primordial black holes

Spin of primordial black holes

by | Sep 19, 2019 | Events, Talk

Spin of primordial black holes We discuss the spin of primordial black holes (PBH) formed during radiation domination under the assumption of Gaussian statistics. They are formed by the collapse of rare fluctuations. We argue that their angular momentum is quadratic...
Higher spin motivated theories (of gravity)

Higher spin motivated theories (of gravity)

by | Sep 13, 2019 | Events, Talk

Higher spin motivated theories (of gravity) Despite the continuing efforts, we cannot be truly satisfied with our understanding of the physics in the UV (short distance) limit. The manifestation is that there is no broadly accepted model of quantum gravity. For this...
Studying the Expansion of the Universe with quasar spectra

Studying the Expansion of the Universe with quasar spectra

by | Sep 13, 2019 | Events, Talk

Studying the Expansion of the Universe with quasar spectra From 2009 to 2014, the Baryon Oscillation Spectroscopic Survey (BOSS) used the SDSS telescope to obtain spectra of 1.5 million galaxies to get very accurate measurements of the Baryon Acoustic Oscillations...
Black hole microstate cosmology

Black hole microstate cosmology

by | Jul 3, 2019 | Events, Talk

Black hole microstate cosmology We consider states of holographic CFTs defined by modifying the standard disk path integral that gives the vacuum state with the insertion of a boundary. We argue that these states correspond to black hole microstates with a geometrical...