A novel interferometer to beat the standard quantum limit using optical transverse modes in multimode waveguide

Details A novel interferometer to beat the standard quantum limit using optical transverse modes in multimode waveguide A novel interferometer to beat the standard quantum limit using optical transverse modes in multimode waveguide

2006-04-14

arxiv.org/abs/quant-ph/0604103v3

Physics

Quantum Physics

9 pages, 3 figures,some errors corrected

Scientific paper

We propose a novel interferometer by using optical transverse modes in multimode waveguide that can beat the standard quantum limit. In the scheme, the classical simulation of $N$-partical quantum entangled states is generated by using $N$ independent classical fields and linear optical elements. Similar to the quantum-enhanced measurements, the classical simulation can also achieve $\sqrt{N}$ enhancement over the precision of the measurement $N$ times for independent fields. Due to only using classical fields and linear optical elements, the scheme can be realized much more easily.

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