Many-body spin echo

URN to cite this document:: urn:nbn:de:bvb:355-epub-336551

Engl, Thomas ; Urbina, Juan Diego ; Richter, Klaus ; Schlagheck, Peter

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Date of publication of this fulltext: 24 Jan 2020 08:43

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Abstract

We show that quantum coherence produces an observable many-body signature in the dynamics of few-fermion Hubbard systems (describing cold atoms in optical lattices, coupled quantum dots, or small molecules) in the form of a revival in the transition probabilities echoing a flip of the system's itinerant spins. Contrary to its single-particle (Hahn) version, this many-body spin echo is not ...