dorsal/arxiv
View SchemaRemarks on 2-q-bit states
| Authors | Berthold-Georg Englert, Nasser Metwally |
|---|---|
| Categories | |
| ArXiv ID | quant-ph/0007053 |
| URL | https://arxiv.org/abs/quant-ph/0007053 |
| DOI | 10.1007/s003400000502 |
| Journal | Applied Physics B, vol. 72, 2001, pp. 35-42 |
Abstract
We distinguish six classes of families of locally equivalent states in a straightforward scheme for classifying all 2-q-bit states; four of the classes consist of two subclasses each. The simple criteria that we stated recently for checking a given state's positivity and separability are justified, and we discuss some important properties of Lewenstein-Sanpera decompositions. An upper bound is conjectured for the sum of the degree of separability of a 2-q-bit state and its concurrence.
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"abstract": "We distinguish six classes of families of locally equivalent states in a\nstraightforward scheme for classifying all 2-q-bit states; four of the classes\nconsist of two subclasses each. The simple criteria that we stated recently for\nchecking a given state\u0027s positivity and separability are justified, and we\ndiscuss some important properties of Lewenstein-Sanpera decompositions. An\nupper bound is conjectured for the sum of the degree of separability of a\n2-q-bit state and its concurrence.",
"arxiv_id": "quant-ph/0007053",
"authors": [
"Berthold-Georg Englert",
"Nasser Metwally"
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"doi": "10.1007/s003400000502",
"journal_ref": "Applied Physics B, vol. 72, 2001, pp. 35-42",
"title": "Remarks on 2-q-bit states",
"url": "https://arxiv.org/abs/quant-ph/0007053"
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