Fast imaging of multimode transverse-spectral correlations for twin
photons
- URL: http://arxiv.org/abs/2101.03120v2
- Date: Fri, 18 Jun 2021 15:39:30 GMT
- Title: Fast imaging of multimode transverse-spectral correlations for twin
photons
- Authors: Micha{\l} Lipka, Micha{\l} Parniak
- Abstract summary: Hyperentangled photonic states offer improved performance of quantum optical communication and computation schemes.
We show a measurement of a full 4-dimensional transverse-wavevector-linear correlations between pairs of photons produced in the non-collinear spontaneous parametric downconversion (SPDC)
utilization of a custom ultra-fast single-photon camera provides high resolution and a short measurement time.
- Score: 0.0
- License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
- Abstract: Hyperentangled photonic states - exhibiting nonclassical correlations in
several degrees of freedom - offer improved performance of quantum optical
communication and computation schemes. Experimentally, a hyperentanglement of
transverse-wavevector and spectral modes can be obtained in a straightforward
way with multimode parametric single-photon sources. Nevertheless, experimental
characterization of such states remains challenging. Not only single-photon
detection with high spatial resolution - a single-photon camera - is required,
but also a suitable mode-converter to observe the spectral/temporal degree of
freedom. We experimentally demonstrate a measurement of a full 4-dimensional
transverse-wavevector-spectral correlations between pairs of photons produced
in the non-collinear spontaneous parametric downconversion (SPDC). Utilization
of a custom ultra-fast single-photon camera provides high resolution and a
short measurement time.
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