Qudit Quantum Information Processing: State Preparation and Manipulation

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Qudit Quantum Information Processing State
Preparation and Manipulation
Mark S. Byrd Departments of Physics and Computer
Science Southern Illinois University Carbondale,
Illinois
Quantum information processing is often done
using qubits, or two-state quantum systems.
However, two qudits (d-state systems) can be more
entangled than two qubits and can share a larger
fraction of their entanglement. We do not know
what types of quantum information processing
tasks are best suited for qubits or best suited
for higher dimensional systems. On the poster,
we explore the production and use of higher
dimensional systems in quantum information
processing devices, i.e. we examine quantum
information processing beyond qubits, using
photons as information carriers.

• Recent results
• An experimental proposal for creating
  decoherence-free entangled qutrit states
• Gates which are compatible with noiseless
  subsystems and decoherence-free subspaces.