Volume 134, Number 3, May 2021
|Number of page(s)||7|
|Section||Atomic, Molecular and Optical Physics|
|Published online||14 July 2021|
Few-body perspective on fermionic pairing in one spatial dimension
Institute of Physics, Polish Academy of Sciences - Aleja Lotnikow 32/46, PL-02668 Warsaw, Poland
Received: 27 May 2021
Accepted: 28 June 2021
In this perspective we discuss recent theoretical and experimental concepts giving a route to a better understanding of conventional and unconventional pairing mechanisms between opposite-spin fermions arising in one-dimensional mesoscopic systems. With special attention, we focus on the problem of experimental detectability of correlations between particles. We argue that state-of-the-art experiments with few ultracold fermions may finally break an impasse and give pioneering and unquestionable verification of the existence of correlated pairs with non-zero center-of-mass momentum.
© 2021 The author(s)
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