Research
Simon A Gardiner
I have had a variety of research interests. These include:
 working on one of the earliest theoretical proposals for
experimentally realizing a quantum logic gate, involving cavity
quantumelectrodynamics
 the theoretical investigation of the problems of quantum state
synthesis, quantum measurement, and quantum chaotic dynamics, along with
ideas for their experimental implementation in a single trapped ion
configuration;
 theoretical investigation on the nonlinear and possibly chaotic
dynamics of atomic BoseEinstein condensates subjected to a
chaosinducing external potential, particularly driven BoseEinstein
condensates;
 theoretical investigation of the possibility of
opticalcavitymediated dissipative dynamics of atomic BoseEinstein
condensates;
 theoretical determination of the properties of mixtures of
ultracold bosonic and fermionic atomic gases;
 the theoretical interpretation of quantum chaotic dynamics
observed in an atomoptical system in analyzing the novel phenomenon of
quantum accelerator modes.
Recently, my major research interests have been the properties and
dynamics
of ultracold, quantumdegenerate atomic gases, particularly atomic
BoseEinstein condensates, and quantum chaotic dynamics, as observed in
atomicoptical systems. Combining these, one can also consider the
possibility of observing quantumchaotic dynamics when a BoseEinstein
condensate is taken as the initial condition of the atomic ensemble.
I am presently particularly interested in the effect on and growth of
dynamical instabilities and excitations of Bose Einstein condensates,
when
initially Bose condensed systems are manipulated and strongly perturbed by
applied external fields. This involves putting the condensate into a
dynamical, nonequilibrium situation, where excitations and dynamical
instabilities must be considered. I am interested in trying to develop
useful
methodologies to understand the issues involved in such comparatively
dramatic
dynamical experimental situations, and applying them to real experimental
examples.
I have a longterm interest in atomoptical quantum chaos and
quantum accelerator modes. For more details, including a brief tutorial
on how quantum accelerator modes manifest themselves in an atomoptical
configuration, click here.
I am also part of the Durham theoretical research effort on quantum
fluids, studying solitons and vortices in atomic BoseEinstein
condensates (BECs). For more details
on our work, click here.
