Assessing physical realism experimentally in a quantum-regulated device CommsPhys NaturePhotonics
. The team then activated the final superposition device to note the transformation of the state into a wave-like state. Based on the statistics at the output of the circuit, they inferred the path that the qubit traveled in the interferometer. To further understand the process, they computed the realism in the circuit and proposed a framework to discuss the elements of reality for the wave-particle behavior in a quantum-controlled interference device.
Pulse sequence for the initial state preparation. The blue boxes represent x local rotations by the angles indicated inside. These rotations are produced by a transverse rf-field resonant with either 1H or 13C nuclei, with phase, amplitude, and time duration properly adjusted. The black dashed boxes with connections represent free time evolution under the scalar coupling of both spins.
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