From People - School of Science, The University of Tokyo
ターナー ピーター (Turner Peter)
TURNER, Peter
| Title | Resaerch Associate |
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| Affiliation | Department of Physics, Graduate School of Science |
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| Room | 937, Faculty of Science Bldg.1, 9F |
| TEL | +81-3-5841-4190 24190 (ext.) |
Research Field
Quantum information theory.
Research Subject
State estimation and discrimination; Quantum reference frames; Quantum optics; Group representation theory; Algebraic techniques in physics.
Current Research
I work on a wide range of topics in quantum information theory with students and collaborators. Currently one of the topics I am most interested in is the problem of quantum estimation, which is the act of writing down a mathematical description of quantum systems given experimental data. It can be viewed as the process of converting quantum information, via measurements, into classical information. Thus there are several aspects to the problem, from the theoretical models of the quantum systems under study to the design of experiments and processing of data. I am studying the former aspect, where assuming different symmetries of the quantum system can lead to different estimates, and therefore it is important to clarify when such assumptions are appropriate. Specifically I am considering multiphoton state estimation in quantum optics, where degrees of freedom that are not measured in experiments ("hidden") can affect the symmetry of the states involved.
Keywords
state estimation, tomography, quantum information, quantum optics, Lie groups, representation theory