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Research interests
1. Quantum information theory and its applications.
l Quantum entanglement (Such as, the searching for the basic types of quantum entanglement, a good measure of the amount of entanglement in a quantum state, a necessary and sufficient operational criterion for multipartite entangled states).
l Mathematic structure of quantum states.
l Quantum computing (the search for a feasible approach to build a robust quantum computer)
l Quantum communication (quantum teleportation, dense coding, quantum cryptography, and quantum information processing where quantum entanglement is essential, quantum computation and quantum network)
2. Foundations of quantum mechanics.
l Any fundamental problems related to quantum measurement, decoherence, and interpretation of quantum mechanics.
l Consistent quantum theory
The consistent histories (decoherent histories) approach to quantum mechanics, proposed by Robert Griffiths in 1984 and further developed by Roland Omnès, Murray Gell-Mann and James Hartle, can produce probabilities from quantum states in a fully consistent way which does not rely upon the use of measurements. More information can be found here.
l Weak measurement
Weak measurement in quantum mechanics is a concept proposed by Yakir Aharonov and his collaborators, it is a standard measuring procedure with weakened coupling. Concepts like weak values are very useful in resolving many conceptual difficulties in quantum mechanics. We are studying its applications to fundamental problems in quantum mechanics and its connection to consistent quantum theory.
3. Other areas in quantum mechanics.
l Some problems in quantum optics
Last updated in August 2006.