Are there techniques for ternary photonic computer ?

[jk22]

If instead of electrons, which are spin 1/2 particles, we could use photons, which are spin 1, could we use this fact to have a three valued logic (1,0,-1) ?

How to store photons like in an electronic computer to build the memory ? Are there techniques that allow that ? Thanks.

 

[phinds]

If instead of electrons, which are spin 1/2 particles, we could use photons, which are spin 1, could we use this fact to have a three valued logic (1,0,-1) ?

the spin value of electrons has NOTHING to do with how they are used in computers.

What have you ever heard that led you to believe otherwise?

 

[jk22]

Sorry I was already in the future, when quantum computers will exist. But in theory ?

 

[Vanadium 50]

A photon has only two spin states. (And if you want to know why, you should ask in the proper section)

 

[Fervent Freyja]

Yes, a hybrid approach: Deterministic Integration of Single Photon Sources in Silicon Based Photonic Circuits

In summary, we have demonstrated controlled integration of preselected nanowire-based single quantum emitters into photonic waveguides. Our novel technique enables scalable integration of selected sources in complex photonic architectures on a single chip. The integrated sources maintain their high optical quality in terms of single photon purity, line width, and intensity with a coupling efficiency to the photonic waveguide as high as 24%. Furthermore, we showed theoretically that for a suspended SiC waveguide, in conjunction with a 1D Bragg reflector, a unidirectional coupling efficiency greater than 86% can be realized. Coupling our quantum emitters to on-chip photonic cavities will allow to investigate the rich physics of cavity quantum electrodynamics, thus enhancing the spontaneous emission rate to accelerate the emission lifetime and approach Fourier-transform limited photons. Finally, by local tuning of the emission energy of single photon sources, indistinguishable photons can be generated as a necessary step toward on-chip optical quantum computation. 2016