Simultaneous time-optimal control of the inversion of two spin 1/2 particles

Details Simultaneous time-optimal control of the inversion of two spin 1/2 particles Simultaneous time-optimal control of the inversion of two spin 1/2 particles

2010-09-06

arxiv.org/abs/1009.1077v1

Physical Review A 82, 013415 (2010)

Physics

Quantum Physics

13 pages, 3 figures

Scientific paper

We analyze the simultaneous time-optimal control of two-spin systems. The two non coupled spins which differ in the value of their chemical offsets are controlled by the same magnetic fields. Using an appropriate rotating frame, we restrict the study to the case of opposite shifts. We then show that the optimal solution of the inversion problem in a rotating frame is composed of a pulse sequence of maximum intensity and is similar to the optimal solution for inverting only one spin by using a non-resonant control field in the laboratory frame. An example is implemented experimentally using techniques of Nuclear Magnetic Resonance.

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