Remote preparation of single-photon "hybrid" entangled and vector-polarization States
Quantum teleportation faces increasingly demanding requirements for transmitting large or even entangled systems. However, knowledge of the state to be transmitted eases its reconstruction, resulting in a protocol known as remote state preparation. A number of experimental demonstrations to date hav...
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| Published in | Physical review letters Vol. 105; no. 3; p. 030407 |
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| Main Authors | , , |
| Format | Journal Article |
| Language | English |
| Published |
United States
16.07.2010
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| Online Access | Get more information |
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| Summary: | Quantum teleportation faces increasingly demanding requirements for transmitting large or even entangled systems. However, knowledge of the state to be transmitted eases its reconstruction, resulting in a protocol known as remote state preparation. A number of experimental demonstrations to date have been restricted to single-qubit systems. We report the remote preparation of two-qubit "hybrid" entangled states, including a family of vector-polarization beams. Our single-photon states are encoded in the photon spin and orbital angular momentum. We reconstruct the states by spin-orbit state tomography and transverse polarization tomography. The high fidelities achieved for the vector-polarization states opens the door to optimal coupling of down-converted photons to other physical systems, such as an atom, as required for scalable quantum networks, or plasmons in photonic nanostructures. |
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| ISSN: | 1079-7114 |
| DOI: | 10.1103/physrevlett.105.030407 |