Talks by Juan Maldacena

The entropy of Hawking radiation

Juan Maldacena Institute for Advanced Study (IAS) - School of Natural Sciences (SNS)

We will review the gravitational formula for fine grained entropy. We will discuss how it applies to an evaporating black hole and how we can compute the entropy of Hawking radiation.

Symmetries of Near Extremal Black Holes

Juan Maldacena Institute for Advanced Study (IAS) - School of Natural Sciences (SNS)

The near horizon region of any black hole looks like flat space and displays an approximate Poincare symmetry. We study the way these symmetries are realized for near extremal black holes.

Quantum mechanics and the geometry of spacetime

Juan Maldacena Institute for Advanced Study (IAS) - School of Natural Sciences (SNS)

After a short review of the gauge gravity duality, we will discuss black holes.  We will explain what the duality tells us about black holes as viewed from the outside.  We will review some of the puzzles that arise when we try to describe the black hole  interior. We will describe wormholes and their interpretation in the dual field theory as entangled states.

Quantum mechanics in the early universe

Juan Maldacena Institute for Advanced Study (IAS) - School of Natural Sciences (SNS)
We will review the mechanism for the generation of primordial fluctuations. We will then discuss ways in which one can test their quantum mechanical nature.

Quantum mechanics in the early universe

Juan Maldacena Institute for Advanced Study (IAS) - School of Natural Sciences (SNS)
We will review the mechanism for the generation of primordial fluctuations. We will then discuss ways in which one can test their quantum mechanical nature.

The semiclassical wavefunction of the universe near de Sitter space

Juan Maldacena Institute for Advanced Study (IAS) - School of Natural Sciences (SNS)
We make some remarks about the semiclassical wavefunction of the universe around de-Sitter space. In five dimensional gravity with a positive cosmological constant it is possible to compute the full semiclassical measure for arbitrary geometries at superhorizon scales. In four dimensions, the same computation can be reformulated as a problem in conformal gravity.