Share Email Print
cover

Proceedings Paper

Experimental realization of an approximate partial transpose for photonic two-qubit systems
Author(s): Hyang-Tag Lim; Yong-Su Kim; Young-Sik Ra; Joonwoo Bae; Yoon-Ho Kim
Format Member Price Non-Member Price
PDF $14.40 $18.00

Paper Abstract

The partial transpose by which a subsystem's quantum state is solely transposed is of unique importance in quantum information processing from both fundamental and practical point of view. In this work, we present a practical scheme to realize a physical approximation to the partial transpose using local measurements on individual quantum systems and classical communication. We then report its linear optical realization and show that the scheme works with no dependence on local basis of given quantum states. A proof-of-principle demonstration of entanglement detection using the physical approximation of the partial transpose is also reported.

Paper Details

Date Published: 15 October 2012
PDF: 8 pages
Proc. SPIE 8518, Quantum Communications and Quantum Imaging X, 85180N (15 October 2012); doi: 10.1117/12.927994
Show Author Affiliations
Hyang-Tag Lim, Pohang Univ. of Science and Technology (Korea, Republic of)
Yong-Su Kim, Pohang Univ. of Science and Technology (Korea, Republic of)
Young-Sik Ra, Pohang Univ. of Science and Technology (Korea, Republic of)
Joonwoo Bae, Korea Institute for Advanced Study (Korea, Republic of)
Yoon-Ho Kim, Pohang Univ. of Science and Technology (Korea, Republic of)


Published in SPIE Proceedings Vol. 8518:
Quantum Communications and Quantum Imaging X
Ronald E. Meyers; Yanhua Shih; Keith S. Deacon, Editor(s)

© SPIE. Terms of Use
Back to Top