  Quantum Logic Processors can be implemented with Mach Zehnder
Interferometer(MZI) configurations for the Quantum logic operations and gates.
In this paper, its implementation for both optical and electronic system has
been presented. The correspondence between Jones matrices for photon
polarizations and Pauli spin matrices for electrons gives a representation of
all the unitary matrices for the quantum gate operations. A novel quantum
computation system based on a Electronic Mach Zehnder Interferometer(MZI) has
also been proposed. It uses the electron spin as the primary qubit. Rashba
effect is used to create Unitary transforms on spin qubits. A mesoscopic Stern
Gerlach apparatus can be used for both spin injection and detection. An
intertwined nanowire design is used for the MZI. The system can implement all
single and double qubit gates. It can easily be coupled to form an array. Thus
the Quantum Logic Processor (QLP) can be built using the system as its
prototype.
