@inproceedings {584,
	title = {Effective Hamiltonian for a non-unitary quantum walk},
	booktitle = {Proceedings of the 40th Samahang Pisika ng Pilipinas Physics Conference},
	year = {2022},
	month = {19{\textendash}21 Oct 2022},
	pages = {SPP-2022-PB-10},
	address = {Legazpi City},
	abstract = {We construct an effective Hamiltonian for the non-unitary evolution operator of a multi-step quantum walk with a mechanism for gain and loss. This Hamiltonian is expressed in the basis of the identity and Pauli operators to make its spectrum easy to calculate and its symmetries evident. The parametrization we use allows for an efficient evaluation of the phase boundary where the PT-symmetry of the model is known to be spontaneously broken and shows that the effective Hamiltonian, although non-Hermitian, is real.},
	url = {https://proceedings.spp-online.org/article/view/SPP-2022-PB-10},
	author = {Francis N. C. Paraan and Sven T. Sorupia and Gene M. M. Itable}
}