Journal
JOURNAL OF PHYSICS A-MATHEMATICAL AND THEORETICAL
Volume 45, Issue 25, Pages -Publisher
IOP PUBLISHING LTD
DOI: 10.1088/1751-8113/45/25/255302
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Funding
- National Natural Science Foundation of China [10902083]
- Shaanxi Natural Science Foundation [2009JM1007]
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A highly entangled seven-qubit state is reported that sheds some new light on a recent conjecture by Borras et al (2007 J. Phys. A: Math. Theor. 40 13407). The seven-qubit state given in this paper has 32 balanced purities equal to 1/8 and the remaining three purities equal to 1/4, whose marginal density matrices for subsystems of one and two qubits are all completely mixed.
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