References

[GoughJames08]Gough & James (2008). Quantum Feedback Networks: Hamiltonian Formulation. Communications in Mathematical Physics, 287(3), 1109-1132. doi:10.1007/s00220-008-0698-8
[GoughJames09]Gough & James (2009). The Series Product and Its Application to Quantum Feedforward and Feedback Networks. IEEE Transactions on Automatic Control, 54(11), 2530-2544. doi:10.1109/TAC.2009.2031205
[QHDL]Tezak, N., Niederberger, A., Pavlichin, D. S., Sarma, G., & Mabuchi, H. (2012). Specification of photonic circuits using quantum hardware description language. Philosophical transactions A, 370(1979), 5270–90. doi:10.1098/rsta.2011.0526
[Mabuchi11]Mabuchi, H. (2011). Nonlinear interferometry approach to photonic sequential logic. Appl. Phys. Lett. 99, 153103 (2011), doi:10.1063/1.3650250