Please use this identifier to cite or link to this item: https://doi.org/10.1103/PhysRevA.87.042112
Title: Three-qubit topological phase on entangled photon pairs
Authors: Johansson, M.
Khoury, A.Z.
Singh, K. 
Sjöqvist, E. 
Issue Date: 19-Apr-2013
Source: Johansson, M., Khoury, A.Z., Singh, K., Sjöqvist, E. (2013-04-19). Three-qubit topological phase on entangled photon pairs. Physical Review A - Atomic, Molecular, and Optical Physics 87 (4) : -. ScholarBank@NUS Repository. https://doi.org/10.1103/PhysRevA.87.042112
Abstract: We propose an experiment to observe the topological phases associated with cyclic evolutions, generated by local SU(2) operations, on three-qubit entangled states prepared on different degrees of freedom of entangled photon pairs. The topological phases reveal the nontrivial topological structure of the local SU(2) orbits. We describe how to prepare states showing different topological phases and discuss their relation to entanglement. In particular, the presence of a π/2 phase shift is a signature of genuine tripartite entanglement in the sense that it does not exist for two-qubit systems. © 2013 American Physical Society.
Source Title: Physical Review A - Atomic, Molecular, and Optical Physics
URI: http://scholarbank.nus.edu.sg/handle/10635/53232
ISSN: 10502947
DOI: 10.1103/PhysRevA.87.042112
Appears in Collections:Staff Publications

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