Two-colour high-purity Einstein-Podolsky-Rosen photonic state
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Two-colour high-purity Einstein-Podolsky-Rosen photonic state. / Brasil, Tulio Brito; Novikov, Valeriy; Kerdoncuff, Hugo; Lassen, Mikael; Polzik, Eugene S.
In: Nature Communications, Vol. 13, No. 1, 4815, 16.08.2022.Research output: Contribution to journal › Journal article › Research › peer-review
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TY - JOUR
T1 - Two-colour high-purity Einstein-Podolsky-Rosen photonic state
AU - Brasil, Tulio Brito
AU - Novikov, Valeriy
AU - Kerdoncuff, Hugo
AU - Lassen, Mikael
AU - Polzik, Eugene S.
PY - 2022/8/16
Y1 - 2022/8/16
N2 - We report a high-purity Einstein-Podolsky-Rosen (EPR) state between light modes with the wavelengths separated by more than 200 nm. We demonstrate highly efficient EPR-steering between the modes with the product of conditional variances epsilon(2) = 0.11 +/- 0.01 << 1. The modes display - 7.7 +/- 0.5 dB of two-mode squeezing and an overall state purity of 0.63 +/- 0.16. EPR-steering is observed over five octaves of sideband frequencies from RF down to audio-band. The demonstrated combination of high state purity, strong quantum correlations, and extended frequency range enables new matter-light quantum protocols.
AB - We report a high-purity Einstein-Podolsky-Rosen (EPR) state between light modes with the wavelengths separated by more than 200 nm. We demonstrate highly efficient EPR-steering between the modes with the product of conditional variances epsilon(2) = 0.11 +/- 0.01 << 1. The modes display - 7.7 +/- 0.5 dB of two-mode squeezing and an overall state purity of 0.63 +/- 0.16. EPR-steering is observed over five octaves of sideband frequencies from RF down to audio-band. The demonstrated combination of high state purity, strong quantum correlations, and extended frequency range enables new matter-light quantum protocols.
KW - QUANTUM
KW - PARADOX
KW - LIGHT
U2 - 10.1038/s41467-022-32495-7
DO - 10.1038/s41467-022-32495-7
M3 - Journal article
C2 - 35974049
VL - 13
JO - Nature Communications
JF - Nature Communications
SN - 2041-1723
IS - 1
M1 - 4815
ER -
ID: 317436156