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
quantum-electrodynamics
- 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 Bose-Einstein condensates subjected to a
chaos-inducing external potential, particularly driven Bose-Einstein
condensates;
- theoretical investigation of the possibility of
optical-cavity-mediated dissipative dynamics of atomic Bose-Einstein
condensates;
- theoretical determination of the properties of mixtures of
ultra-cold bosonic and fermionic atomic gases;
- the theoretical interpretation of quantum chaotic dynamics
observed in an atom-optical system in analyzing the novel phenomenon of
quantum accelerator modes.
Recently, my major research interests have been the properties and
dynamics
of ultracold, quantum-degenerate atomic gases, particularly atomic
Bose-Einstein condensates, and quantum chaotic dynamics, as observed in
atomic-optical systems. Combining these, one can also consider the
possibility of observing quantum-chaotic dynamics when a Bose-Einstein
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, non-equilibrium 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 long-term interest in atom-optical quantum chaos and
quantum accelerator modes. For more details, including a brief tutorial
on how quantum accelerator modes manifest themselves in an atom-optical
configuration, click here.
I am also part of the Durham theoretical research effort on quantum
fluids, studying solitons and vortices in atomic Bose-Einstein
condensates (BECs). For more details
on our work, click here.
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