Experimental realization of linear-optical partial swap gates |
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| Authors: | Cernoch Antonín Soubusta Jan Bart?sková Lucie Dusek Miloslav Fiurásek Jaromír |
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| Institution: | Joint Laboratory of Optics of Palacky University and Institute of Physics of Academy of Sciences of the Czech Republic, 17. listopadu 50A, 779 07 Olomouc, Czech Republic. |
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| Abstract: | We present a linear-optical implementation of a class of two-qubit partial SWAP gates for polarization states of photons. Different gate operations, including the SWAP and entangling sqrtSWAP], can be obtained by changing a classical control parameter, namely, the path difference in the interferometer. Reconstruction of output states, full quantum process tomography, and an evaluation of entanglement of formation prove very good performance of the gates. |
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