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Negative reaction

Light pulses with positive and negative effective masses are now generated using optical fibres. Nonlinear interactions between the two can then create self-accelerating pulse pairs, opening a new route to pulse steering.

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Figure 1: Self-accelerating particles.


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Correspondence to Thomas Philbin.

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Philbin, T. Negative reaction. Nature Phys 9, 755–756 (2013).

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