A Marie, H Burton, P Loos, Perturbation theory in the complex plane: exceptional points and where to find them, JPC 33, 283001 (2021)
E Armour, J Richard, K Varga, Stability of few-charge systems in quantum mechanics, PR 413, 1 (2005)
Mattis D C, The few-body problem on a lattice, RMP 58, 361 (1986)
P E Kornilovitch, Stability of three-fermion clusters with finite range of attraction, EPL 103, 27005 (2013)
X Liu, H Hu, P D Drummond, Exact few-body results for strongly correlated quantum gases in two dimensions, PRB 82, 054524 (2010)
X Liu, H Hu, P D Drummond, Three attractively interacting fermions in a harmonic trap: Exact solution, ferromagnetism, and high-temperature thermodynamics, PRA 82, 023619 (2010)
X Liu, H Hu, P D Drummond, Virial expansion for a strongly correlated Fermi gas, PRL 102, 160401 (2009)