Publication date: 8th June 2021
Quantum carpets [1] - the spatio-temporal de Broglie density profiles- woven by an atom or an electron in the near-field region of a diffraction grating bring to light [2], in real time, the decoherence of each individual component of the interference term of the Wigner function characteristic of Schrödinger cats. The proposed experiments [2] are feasible with present-day technology.
Fig. captionQuantum carpet in the absence of decoherence
References:
[1] M. Berry, I. Marzoli, and W. Schleich, Quantum Carpets, Carpets of Light, Physics World
14, 39-44 (2001)
[2] P. Kazemi, S. Chaturvedi, I. Marzoli, R.F. O’Connell, and W.P. Schleich, Quantum
carpets - a tool to observe decoherence, New J. Phys. 15, 013052 (2013)
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