Experimental realization of linear-optical partial SWAP gates

Details Experimental realization of linear-optical partial SWAP gates Experimental realization of linear-optical partial SWAP gates

2007-11-28

arxiv.org/abs/0711.4534v1

Phys. Rev. Lett. 100, 180501 (2008).

Physics

Quantum Physics

4 pages, 4 figures, RevTeX4

Scientific paper

10.1103/PhysRevLett.100.180501

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 square root of SWAP, can be obtained by changing a classical control parameter -- namely the path difference in the interferometer. Reconstruction of output states, full process tomography and evaluation of entanglement of formation prove very good performance of the gates.

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