کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1862692 | 1037603 | 2012 | 5 صفحه PDF | دانلود رایگان |

We present an algorithm for transforming an arbitrary input polarization state into a nonorthogonal but otherwise arbitrary output polarization state, by using two quarter-wave retarders. Such an array reduces the number of retarders employed in the well-known Simon–Mukunda gadget, which consists of one half-wave and two quarter-wave retarders. The latter was designed to realize arbitrary SU(2)SU(2) transformations on qubits. The gadget presented here accomplishes a related task, allowing to transforming an input qubit into a target qubit, by choosing a particular SU(2)SU(2) transformation that is realizable with two quarter-wave plates.
► Given two polarization states, we transform one into the other by using two quarter-wave plates.
► An algorithm outputs the wave-platesʼ setting for any two nonorthogonal states.
► The algorithm complements Simon–Mukundaʼs three-component gadget for SU(2)SU(2) transformations.
► Our approach can be applied to other realizations of qubits.
Journal: Physics Letters A - Volume 376, Issue 19, 9 April 2012, Pages 1664–1668