\BOOKMARK [0][-]{section*.2}{Exceptional points and where to find them}{}% 2 \BOOKMARK [1][-]{section*.1}{Abstract}{section*.2}% 1 \BOOKMARK [1][-]{section*.3}{Introduction}{section*.2}% 3 \BOOKMARK [1][-]{section*.4}{Perturbation Theory}{section*.2}% 4 \BOOKMARK [1][-]{section*.5}{The asymmetric Hubbard dimer}{section*.2}% 5 \BOOKMARK [1][-]{section*.6}{Concluding remarks}{section*.2}% 6 \BOOKMARK [1][-]{section*.7}{Acknowledgments}{section*.2}% 7 \BOOKMARK [1][-]{section*.8}{References}{section*.2}% 8