Experimental demonstration of stimulated polarization wave in a chain of nuclear spins
Abstract
A stimulated wave of polarization, which implements a simple mechanism of quantum amplification, is experimentally demonstrated in a chain of four J-coupled nuclear spins, irradiated by a weak radio-frequency transverse field. The "quantum domino" dynamics, a wave of flipped spins triggered by a flip of the first spin, has been observed in fully 13C-labeled sodium butyrate.
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