Journal
PHYSICAL REVIEW A
Volume 80, Issue 4, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevA.80.042322
Keywords
optical frequency conversion; quantum computing; quantum entanglement; quantum optics
Categories
Funding
- Milenio [ICMP06-067F]
- PBCT [PDA-25]
- FONDECYT [11085057, 11085055, 1061046]
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We show that the quantum disentanglement eraser implemented on a two-photon system from parametric downconversion is a general method to create hybrid photonic entanglement, namely the entanglement between different degrees of freedom of the photon pair. To demonstrate this, we generate and characterize a source with tunable degree of hybrid entanglement between two qubits, one encoded in the transverse momentum and position of a photon, and the other in the polarization of its partner. In addition, we show that a simple extension of our setup enables the generation of two-photon qubit-qudit hybrid entangled states. Finally, we discuss the advantages that this type of entanglement can bring for an optical quantum network.
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