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Trapped Ion Quantum Computing

Multiphoton interference in quantum Fourier transform circuits and applications to quantum metrology

arXiv
Authors: Zu-En Su, Yuan Li, Peter P. Rohde, He-Liang Huang, Xi-Lin Wang, Li Li, Nai-Le Liu, Jonathan P. Dowling, Chao-Yang Lu, Jian-Wei Pan

Year

2017

Paper ID

44266

Status

Preprint

Abstract Read

~2 min

Abstract Words

72

Citations

N/A

Abstract

Quantum Fourier transforms (QFT) have gained increased attention with the rise of quantum walks, boson sampling, and quantum metrology. Here we present and demonstrate a general technique that simplifies the construction of QFT interferometers using both path and polarization modes. On that basis, we first observed the generalized Hong-Ou-Mandel effect with up to four photons. Furthermore, we directly exploited number-path entanglement generated in these QFT interferometers and demonstrated optical phase supersensitivities deterministically.

Why This Paper Matters

  • This paper contributes to the Trapped-Ion Quantum Computing research area in the Quantum Articles archive.
  • It adds a 2017 reference point for readers tracking recent quantum research.
  • Quantum Fourier transforms (QFT) have gained increased attention with the rise of quantum walks, boson sampling, and quantum metrology.

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References & Citation Signals

[1] DOI https://doi.org/arXiv:1708.00296 [2] arXiv https://arxiv.org/abs/1708.00296 [3] Publisher https://arxiv.org/abs/1708.00296

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