Experimental implementation of the universal transpose operation

Hyang-Tag Lim; Young-sik Ra; Yong-Su Kim; Joonwoo Bae; Yoon-Ho Kim

doi:10.1117/12.879335

12 February 2011 Experimental implementation of the universal transpose operation

Hyang-Tag Lim, Young-sik Ra, Yong-Su Kim, Joonwoo Bae, Yoon-Ho Kim

Proceedings Volume 7948, Advances in Photonics of Quantum Computing, Memory, and Communication IV; 79480J (2011) https://doi.org/10.1117/12.879335
Event: SPIE OPTO, 2011, San Francisco, California, United States

Abstract

The universal transpose of quantum states is an anti-unitary transformation that is not allowed in quantum theory. In this work, we investigate approximating the universal transpose of quantum states of two-level systems (qubits) using the method known as structural physical approximation. We also report its experimental implementation in linear optics. The scheme is optimal in that the maximal fidelity is attained, and also practical as measurement and preparation of quantum states that are experimentally feasible within current technologies are solely applied.

Citation Download Citation

Hyang-Tag Lim, Young-sik Ra, Yong-Su Kim, Joonwoo Bae, and Yoon-Ho Kim "Experimental implementation of the universal transpose operation", Proc. SPIE 7948, Advances in Photonics of Quantum Computing, Memory, and Communication IV, 79480J (12 February 2011); https://doi.org/10.1117/12.879335

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