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Atomic Physics Seminars

ics Atomic
Monday, September 3, 2007
3:30 PM
Physics Building, Room 204
Nicolas Menicucci [Host: Olivier Pfister]
Princeton U. / U. of Queensland
"The Bloch Representation of Quantum States with D > 2"
Quantum states are hard to visualize. This is true regardless of the system's dimension. Two cases are particularly nice, though: infinite-dimensional systems, for which quantum optics gives us the Wigner, P, and Q representations, and qubits, for which we can use the Bloch-vector representation. The Bloch picture can be generalized to states with finite dimension greater than two, but there are striking and important differences between the D = 2 and D > 2 Bloch pictures. This talk will introduce the Bloch representation of quantum states with D > 2 and will emphasize the similarities and differences as compared to the standard (qubit) case.

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