### Abstract

Original language | English |
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Number of pages | 8 |

Publication status | Unpublished - 23 Dec 2014 |

### Fingerprint

### Keywords

- error models
- incomplete measurements
- quantum information
- optical lattices

### Cite this

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**Bell inequality violation in the presence of vacancies and incomplete measurements.** / C. S. Hall, Kaila; K. L. Oi, Daniel.

Research output: Working paper

TY - UNPB

T1 - Bell inequality violation in the presence of vacancies and incomplete measurements

AU - C. S. Hall, Kaila

AU - K. L. Oi, Daniel

N1 - 8 pages, 9 figures

PY - 2014/12/23

Y1 - 2014/12/23

N2 - The characterization of a quantum system can be complicated by non-ideal measurement processes. In many systems, the underlying physical measurement is only sensitive to a single fixed state, complementary outcomes are inferred by non-detection leaving them vulnerable to out-of-Hilbert space errors such as particle loss. It is still possible to directly verify the violation of a Bell inequality, hence witness entanglement of a bipartite state, in the presence of large vacancy rates using such an incomplete measurement by optimizing the measurement settings. The scheme is robust against imperfect a priori state knowledge and also moderate amounts of error in state determination.

AB - The characterization of a quantum system can be complicated by non-ideal measurement processes. In many systems, the underlying physical measurement is only sensitive to a single fixed state, complementary outcomes are inferred by non-detection leaving them vulnerable to out-of-Hilbert space errors such as particle loss. It is still possible to directly verify the violation of a Bell inequality, hence witness entanglement of a bipartite state, in the presence of large vacancy rates using such an incomplete measurement by optimizing the measurement settings. The scheme is robust against imperfect a priori state knowledge and also moderate amounts of error in state determination.

KW - error models

KW - incomplete measurements

KW - quantum information

KW - optical lattices

UR - http://arxiv.org/abs/1412.7502

M3 - Working paper

BT - Bell inequality violation in the presence of vacancies and incomplete measurements

ER -