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Stability against three-body clustering in one-dimensional spinless p-wave fermions (2208.03654v2)

Published 7 Aug 2022 in cond-mat.quant-gas, cond-mat.str-el, cond-mat.supr-con, and nucl-th

Abstract: We theoretically investigate in-medium two- and three-body correlations in one-dimensional spinless fermions with attractive two-body p-wave interaction. By investigating the variational problem of two- and three-body states above the Fermi sea, we elucidate the fate of the in-medium two- and three-body cluster states. The one-dimensional system with the strong p-wave interaction is found to be stable against the formation of three-body clusters even in the presence of the Fermi sea, in contrast to higher-dimensional systems that suffer the strong three-body loss associated with the trimer formation.

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