Multiphoton interference in quantum fourier transform circuits and applications to quantum metrology
Physical review letters, 2017•APS
Quantum Fourier transforms (QFTs) 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 observe the generalized
Hong-Ou-Mandel effect with up to four photons. Furthermore, we directly exploit number-
path entanglement generated in these QFT interferometers and demonstrate optical phase …
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 observe the generalized
Hong-Ou-Mandel effect with up to four photons. Furthermore, we directly exploit number-
path entanglement generated in these QFT interferometers and demonstrate optical phase …
Quantum Fourier transforms (QFTs) 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 observe the generalized Hong-Ou-Mandel effect with up to four photons. Furthermore, we directly exploit number-path entanglement generated in these QFT interferometers and demonstrate optical phase supersensitivities deterministically.
American Physical Society