Optical simulations of quantum logic

Nitta, Tado, Matoba +1 more

Chris Sparrow, Jacques Carolan, Christopher Harrold +13 more

Meher Antia

Andrzej Janutka

In a concept of simulating the quantum logic with vector solitons by the author (Janutka 2006 J. Phys. A: Math. Gen. 39 12505 ), the soliton polarization is thought of as a state vector of a system of cebits (classical counterparts of qubits) switched via collisions with other solitons. The advantage of this method of information processing compared to schemes using linear optics is the possibility of the determination of the information-register state in a single measurement. Minimization of the information-processing error for different optical realizations of the logical systems is studied in the framework of a quantum analysis of soliton fluctuations. The problem is considered with relevance to general difficulties of the quantum error-correction schemes for the classical analogies of the quantum-information processing.

Kouichi Nitta, Yasunori Tado, Osamu Matoba +1 more

A simulator for exponential function in Shor’s quantum algorithm is presented. It is based on optical array logic (OAL) which is one of paradigm for digital optical computing. In the method, a quantum statement with superposition and entanglement is represented by twodimensional spatial pattern. Parallel processing set by OAL simulates quantum properties.

Timothy C. Ralph, Geoff J. Pryde