Generation of a frequency-degenerate four-photon entangled state using a silicon nanowire
arXiv:1812.02368 · doi:10.1038/s41534-019-0205-4
Abstract
Integrated photonics is becoming an ideal platform for generating two-photon entangled states with high brightness, high stability and scalability. This high brightness and high quality of photon pair sources encourages researchers further to study and manipulate multi-photon entangled states. Here, we experimentally demonstrate frequency-degenerate four-photon entangled state generation based on a single silicon nanowire 1 cm in length. The polarization encoded entangled states are generated with the help of a Sagnac loop using additional optical elements. The states are analyzed using quantum interference and state tomography techniques. As an example, we show that the generated quantum states can be used to achieve phase super-resolution. Our work provides a method for preparing indistinguishable multi-photon entangled states and realizing quantum algorithms in a compact on-chip setting.
arXiv comment9 pages, 4 figures
References in corpus (33)
- Experimental quantum teleportation
- Advances in Quantum Metrology
- Quantum Simulation
- Quantum metrology
- On the Measurement of Qubits
- Multi-photon entanglement and interferometry
- Measurement-based quantum computation
- Beating the Standard Quantum Limit with Four Entangled Photons
- Multidimensional quantum entanglement with large-scale integrated optics
- Experimental ten-photon entanglement
- On-chip quantum interference between silicon photon-pair sources
- Phase-stable source of polarization-entangled photons using a polarization Sagnac interferometer
- Chip-based photon quantum state sources using nonlinear optics
- Silicon Quantum Photonics
- On the genesis and evolution of Integrated Quantum Optics
- Continuous wave photon pair generation in silicon-on-insulator waveguides and ring resonators
- Generation and sampling of quantum states of light in a silicon chip
- Photonic crystal fibre source of photon pairs for quantum information processing
- Entanglement generation using silicon wire waveguide
- On-chip coherent conversion of photonic quantum signals between different degrees of freedom
- Experimental Verification of Multipartite Entanglement in Quantum Networks
- Demonstrating anyonic fractional statistics with a six-qubit quantum simulator
- Distribution of entanglement in large-scale quantum networks
- Multi-photon absorption limits to heralded single photon sources
- Experimental tomography of NOON states with large photon numbers
- On-chip transverse-mode entangled photon pair source
- On-chip multiplexed multiple entanglement sources in a single silicon nanowire
- Observation of Four-Photon de Broglie Wavelength by State Projection Measurement
- Quantum plasmonic N00N state in a silver nanowire and its use for quantum sensing
- Measuring arbitrary-order coherences: Tomography of single-mode multiphoton polarization-entangled states
- Generation of path-encoded Greenberger-Horne-Zeilinger states
- Experimental verification of entanglement generated in a plasmonic system
- De Broglie Wavelength Reduction for a Multi-photon Wave Packet
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