Classical Trajectories of the Continuum States of the ${\cal{PT}}$   symmetric Scarf II potential
  We apply the factorization technique developed by Kuru et. al. [Ann. Phys. {\bf 323} (2008) 413] to obtain the exact analytical classical trajectories and momenta of the continuum states of the non Hermitian but ${\cal{PT}}$ symmetric Scarf II potential. In particular, we observe that the strange behaviour of the quantum version at the spectral singularity has an interesting classical analogue. 
Anjana Sinha
quant-ph math-ph math.MP