6.845 Final Project: Classifying Beamsplitters
نویسندگان
چکیده
Quantum linear optics provides a promising candidate for the realization of quantum computation. The computational power of quantum optics varies with what input states, gate sets, and measurements are present in the model. Quantum linear optics with single photon input states and adaptive measurements is universal for quantum computation [6]. Using non-adaptive measurements reduces the computational power of linear optics, but there is evidence that this model is still impossible to efficiently simulate using a classical computer [1]. If Gaussian states are used as inputs, and measurements are taken in the Gaussian basis only, then the model is efficiently classically simulable [2].
منابع مشابه
Generation of Universal Linear Optics by Any Beamsplitter
In 1994, Reck et al. showed how to realize any unitary transformation on a single photon using a product of beamsplitters and phaseshifters. Here we show that any single beamsplitter that nontrivially mixes two modes, also densely generates the set of unitary transformations (or orthogonal transformations, in the real case) on the single-photon subspace with m ≥ 3 modes. (We prove the same resu...
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