Nonlinear electromagnetic quantum information processing

Details Nonlinear electromagnetic quantum information processing Nonlinear electromagnetic quantum information processing

2006-11-07

2006-11-07

Assaf, Fayez G. (Department: 2872)

Optical: systems and elements

Optical computing without diffraction

Logic gate

C359S107000

Reexamination Certificate

active

07133173

ABSTRACT:
Nonlinear electromagnetic elements can efficiently implement quantum information processing tasks such as controlled phase shifts, non-demolition state detection, quantum subspace projections, non-demolition Bell state analysis, heralded state preparation, quantum non-demolition encoding, and fundamental quantum gate operations. Direct use of electromagnetic non-linearity can amplify small phase shifts and use feed forward systems in a near deterministic manner with high operating efficiency. Measurements using homodyne detectors can cause near deterministic projection of input states on a Hilbert subspace identified by the measurement results. Feed forward operation can then alter the projected state if desired to achieve a desired output state with near 100% efficiency.

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