Temporal distinguishability in Hong-Ou-Mandel interference: Generation and characterization of high-dimensional frequency entanglement
arXiv:2010.03335 · doi:10.1038/s41534-021-00504-0
Abstract
High-dimensional quantum entanglement is currently one of the most prolific fields in quantum information processing due to its high information capacity and error resilience. A versatile method for harnessing high-dimensional entanglement has long been hailed as an absolute necessity in the exploration of quantum science and technologies. Here we exploit Hong-Ou-Mandel interference to manipulate discrete frequency entanglement in arbitrary-dimensional Hilbert space. The generation and characterization of two-, four- and six-dimensional frequency entangled qudits are theoretically and experimentally investigated, allowing for the estimation of entanglement dimensionality in the whole state space. Additionally, our strategy can be generalized to engineer higher-dimensional entanglement in other photonic degrees of freedom. Our results may provide a more comprehensive understanding of frequency shaping and interference phenomena, and pave the way to more complex high-dimensional quantum information processing protocols.
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Cited by in corpus (10)
- Spectrally resolved two-photon interference in a modified Hong-Ou-Mandel interferometer
- Spectral Properties of Transverse Laguerre-Gauss Modes in Parametric Down-Conversion
- Hyper-entanglement between pulse modes and frequency bins
- Quantum interferometric two-photon excitation spectroscopy
- Comparison of multi-mode Hong-Ou-Mandel interference and multi-slit interference
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- Complete spectral characterization of biphotons by simultaneously determining its frequency sum and difference in a single quantum interferometer
- Discrete and parallel frequency-bin entanglement generation from quantum frequency comb
- Multiparameter cascaded quantum interferometer
- Harnessing Hybrid Frequency-Entangled Qudits through Quantum Interference