 | Quantum Computation using Photons
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| | Holger F. Hofmann1), Kenji Tsujino2) and Shigeki Takeuchi1)2) |
| 1) JST-CREST
2) RIES-Hokkaido University |
| | Among many candidates for quantum bits, photons are the only quanta whose quantum state can be transmitted over long distances. It has been thought that devices for direct entanglement manipulation such as quantum phase gates (QPGs) are indispensable for quantum computation. However, they are difficult to develop. Recently it has been reported that quantum teleportation can also be used to generate entanglement between non-interacting photons. Toward a future realization of large scale quantum circuits, we are now trying to perform receiver’s feedback free quantum teleportation (RFFQT) using single photons as the first stage, and to establish basic theories for estimating errors. |
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