On-chip parallel processing of quantum frequency combs for
high-dimensional hyper-entanglement generation
- URL: http://arxiv.org/abs/2111.12784v1
- Date: Wed, 24 Nov 2021 20:32:16 GMT
- Title: On-chip parallel processing of quantum frequency combs for
high-dimensional hyper-entanglement generation
- Authors: Liang Zhang, Chaohan Cui, Jianchang Yan, Yanan Guo, Junxi Wang, Linran
Fan
- Abstract summary: High-dimensional encoding and hyper-entanglement are unique features that distinguish optical photons from other quantum information carriers.
Here we demonstrate the chip-scale solution to the generation and manipulation of high-dimensional hyper-entanglement.
Our work provides the critical step for the efficient and parallel processing of quantum information with integrated photonics.
- Score: 4.1893829542288294
- License: http://creativecommons.org/licenses/by/4.0/
- Abstract: High-dimensional encoding and hyper-entanglement are unique features that
distinguish optical photons from other quantum information carriers, leading to
improved system efficiency and novel quantum functions. However, the disparate
requirements to control different optical degrees of freedom have prevent the
development of complete integrated platforms that is capable of leveraging the
complementary benefits of high-dimensional encoding and hyper-entanglement at
the same time. Here we demonstrate the chip-scale solution to the generation
and manipulation of high-dimensional hyper-entanglement. This is achieved by
the parallel processing of multiple quantum frequency combs in the path domain.
Cavity-enhanced parametric down-conversion with Sagnac configuration is
implemented to ensure the spectral indistinguishability. Simultaneous
entanglement in path and frequency is realized with high dimensions. On-chip
reconfiguration of the entanglement structure is also demonstrated. We further
present quantum interference in both entanglement degrees of freedom with high
visibility. Our work provides the critical step for the efficient and parallel
processing of quantum information with integrated photonics.
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