| 000 | 02237nab a2200361 c 4500 | ||
|---|---|---|---|
| 001 | vtls000721028 | ||
| 003 | RU-ToGU | ||
| 005 | 20210922104815.0 | ||
| 007 | cr | | ||
| 008 | 200525|2019 ne s a eng dd | ||
| 024 | 7 |
_a10.1007/s11128-019-2327-1 _2doi |
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| 035 | _ato000721028 | ||
| 040 |
_aRU-ToGU _brus _cRU-ToGU |
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| 245 | 1 | 0 |
_aQubit representation of qudit states: correlations and state reconstruction _cJ. A. López-Saldívar, O. Castaños, M. A. Man'ko, V. I. Man’ko |
| 504 | _aБиблиогр.: 29 назв. | ||
| 520 | 3 | _aA method to establish a qubit decomposition of a general qudit state is presented. This new representation allows a geometrical depiction of any qudit state in the Bloch sphere. Additionally, we show that the nonnegativity conditions of the qudit state imply the existence of quantum correlations between the qubits which compose it. These correlations are used to define new inequalities which the density matrices components must satisfy. The importance of such inequalities in the reconstruction of a qudit state is addressed. As an example of the general procedure, the qubit decomposition of a qutrit system is shown, which allows a classification of the qutrit states by fixing their invariants Tr(ρ^2) , Tr(ρ^3) . | |
| 653 | _aквантовые состояния | ||
| 653 | _aквантовые корреляции | ||
| 653 | _aгеометрическое представление квантовых состояний | ||
| 653 | _aвосстановление квантовых состояний | ||
| 653 | _aБлоха сфера | ||
| 653 | _aкубиты | ||
| 655 | 4 |
_aстатьи в журналах _9745982 |
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| 700 | 1 |
_aCastaños, Octavio _9486833 |
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| 700 | 1 |
_aManko, Margarita A. _9105352 |
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| 700 | 1 |
_aManko, Vladimir I. _9105486 |
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| 700 | 1 |
_aLópez-Saldívar, Julio Alberto _9486836 |
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| 773 | 0 |
_tQuantum information processing _d2019 _gVol. 18, № 7. P. 210 (1-14) _x1570-0755 |
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| 852 | 4 | _aRU-ToGU | |
| 856 | 4 | _uhttp://vital.lib.tsu.ru/vital/access/manager/Repository/vtls:000721028 | |
| 908 | _aстатья | ||
| 999 | _c467720 | ||