Quantum Mechanics and Spacetime in the 21st Century

Prepare to be amazed. Nima Arkani-Hamed is one of the world's most innovative scientists, with an infectious enthusiasm for decoding the mysteries of the universe. Renowned for his dynamic and accessible speaking style, Arkani-Hamed is among the most sought-after experts on topics including dark matter, extra dimensions, particle colliders, and the interconnectedness of them all. He was featured prominently in the critically acclaimed 2013 documentary Particle Fever, chronicling the search at the LHC for the Higgs boson.

In Praise of Weakness

While quantum mechanics is an immensely powerful and precise theory which seems to describe everything in the world, its insistence on only predicting what happens when we make "measurements" has left scientists and philosophers alike puzzled - as David Mermin summarized one of Einstein's concerns, "Is the moon there when nobody looks?" Dr.

Ontology of collapse theories

The textbook collapse postulate says that, after a measurement, the quantum state of the system on which the measurement was performed , and becomes an eigenstate of the observable measured.

Collapse and Consequences

I shall give an introduction to conceptual ideas and equations of the CSL (Continuous Spontaneous Localization) theory of dynamical wave function collapse.  Then, I shall discuss various applications of the theory.

Phenomenology of spontaneous wave-function collapse models

Models of spontaneous wave function collapse make predictions, which are different from those of standard quantum mechanics. Indeed, these models can be considered as a rival theory, against which the standard theory can be tested, in pretty much the same way in which parametrized post-Newtonian gravitational theories are rival theories of general relativity.  The predictions of collapse models almost coincide with those of standard quantum mechanics at the microscopic level, as these models have to account for the microscopic world, as we know it.

Q2C Wrap - Up

In this closing session, festival panelists will look back over the preceding ten days to review what we've learned about the Quantum, the Cosmos, and Ideas for the Future.