Published June 13, 2014 | Version v1
Journal article Metadata-only

Tensor product extension of entanglement witnesses and their connection with measurement-device-independent entanglement witnesses

Creators

  • 1. National Quantum Information Center, 81-824 Sopot (Poland)
  • 2. Institute of Theoretical Physics and Astrophysics, University of Gdańsk, 80-952 Gdańsk (Poland)
  • 3. Faculty of Applied Physics and Mathematics, Gdańsk University of Technology, 80-233 Gdańsk (Poland)

Description

We provide a new extension of entanglement witnesses for Cd1⊗Cd2 systems. Our construction preserves the properties of nondecomposability and spanning property of entanglement witnesses. We show how our concept of extended entanglement witnesses is connected with the idea of measurement device independent entanglement witnesses. - Highlights: • A new extension of entanglement witness (EW) for Cd1⊗Cd2 systems is provided. • This construction preserves the properties of indecomposability of EW. • This construction preserves the properties of spanning property of EW. • The idea of measurement device independent EW (MDIEW) is shown. • The connection of the concept of extended EW with the idea of MDIEW is shown

Availability note (English)

Available from http://dx.doi.org/10.1016/j.physleta.2014.05.027

Additional details

Identifiers

DOI
10.1016/j.physleta.2014.05.027;
arXiv
arXiv:1403.3711v3;
PII
S0375-9601(14)00541-6;

Publishing Information

Journal Title
Physics Letters. A
Journal Volume
378
Journal Issue
30-31
Journal Page Range
p. 2043-2047
ISSN
0375-9601
CODEN
PYLAAG

INIS

Country of Publication
Netherlands
Country of Input or Organization
International Atomic Energy Agency (IAEA)
INIS RN
47008847
Subject category
S71: CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS;
Descriptors DEI
ELECTRIC MEASURING INSTRUMENTS; QUANTUM ENTANGLEMENT; QUANTUM INFORMATION; QUANTUM STATES; TENSORS
Descriptors DEC
ELECTRICAL EQUIPMENT; EQUIPMENT; INFORMATION; MEASURING INSTRUMENTS

Optional Information

Copyright
Copyright (c) 2014 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.