Janos Perczel (St. Andrews internship)
Quantum Optics and Invisibility, Summer 2010
|
According to Fermat's Principle, light follows the trajectory of the shortest optical path,
that is, the path over which the integral of the refractive index function is minimal. Therefore,
the refractive index of an optical medium determines how light propagates within it. Consequently,
by a suitable choice of refractive index profile for an optical medium, light rays can be bent around
and made to propagate in closed loops... [More]
|
William Simpson (Nuffield internship)
Quantum Levitation, Summer 2010
|
It is possible to levitate things on 'nothing'. A recent experiment published in
Nature has conclusively shown that the normally sticky quantum force of empty space can be turned from attraction
to repulsion. In such cases small objects can levitate on the forces of the vacuum, which could be applied in
novel micro- and nanomachines. In this research I hope to find a better understanding of these fascinating phenomena
by modernizing some aspects of a theory that has been stagnant for nearly half a century...
[More]
|