Zobrazeno 1 - 10
of 17
pro vyhledávání: '"Xi-Jun Ren"'
Publikováno v:
Physical Review
In this paper, we study the entanglement property of a 4-particle system. In this system, two initially entangled electrons A and C are scattered by two uncorrelated positrons B and D, respectively. We calculate the entanglements among the particles
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::098110f7843356556923d5cb0535d3bc
http://arxiv.org/abs/2112.04254
http://arxiv.org/abs/2112.04254
Autor:
Xi-Jun Ren, Heng Fan
Publikováno v:
Quantum Information and Computation. 15:914-922
In this paper, we considered asymmetric $1\rightarrow n$ cloning circuits generalized from the asymmetric $1\rightarrow 2$ cloning circuit proposed by Bu\v{z}ek \textit{et al.} [Phys. Rev. A 56, 3446 (1997)]. The generalization is based on an informa
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9bf6c27424b6ddcd444fd0f89c052ca8
https://doi.org/10.26421/qic15.11-12-2
https://doi.org/10.26421/qic15.11-12-2
Autor:
Xi-Jun Ren, Heng Fan
Publikováno v:
Quantum Information and Computation. 13:469-478
We consider a monogamy inequality of quantum discord in a pure tripartite state and show that it is equivalent to an inequality between quantum mutual information and entanglement of formation of two parties. Since this inequality does not hold for a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8aa9ec2d2a3a737b584fc69cb8d19647
https://doi.org/10.26421/qic13.5-6-7
https://doi.org/10.26421/qic13.5-6-7
Autor:
Heng Fan, Xi-Jun Ren
Quantum discord, a measure of quantum correlation beyond entanglement, is initially defined as the discord between two classically equivalent while quantum discordant definitions of mutual information. In this paper, we report some new interpretation
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a3b0762447449eac39f2de6138af4725
http://arxiv.org/abs/1112.2767
http://arxiv.org/abs/1112.2767
Publikováno v:
Physical Review A. 84
We present a unified universal quantum cloning machine, which combines several different existing universal cloning machines together including the asymmetric case. In this unified framework, the identical pure states are projected equally into each
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6ae167d23efbc14e8c0f96e1d03e2557
https://doi.org/10.1103/physreva.84.034302
https://doi.org/10.1103/physreva.84.034302
Publikováno v:
Physical Review A. 81
In this report, we calculate the three tangle of assistance and give the corresponding best possible pure state decomposition of rank-two mixed states for the three-qubit Greenberger-Horne-Zeilinger (GHZ) state and W state. As the three tangle can be
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::66848cee665c9b3af9d14dc6a7960001
https://doi.org/10.1103/physreva.81.042306
https://doi.org/10.1103/physreva.81.042306
Autor:
Xi-Jun Ren, Wei Jiang
Publikováno v:
Physical Review A. 81
In this report, we show explicitly that the tangles of an arbitrary pure state in a $2\ensuremath{\bigotimes}2\ensuremath{\bigotimes}4$ system satisfy the monogamy relation. This relation is also generalized to mixed states. As the tangle is always l
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8e5abd071320f45e86871d53806d8207
https://doi.org/10.1103/physreva.81.024305
https://doi.org/10.1103/physreva.81.024305
Publikováno v:
Physical Review A. 79
In this paper, we find subspaces that have no locally distinguishable orthonormal bases. For a ${C}^{m}\ensuremath{\bigotimes}{C}^{n}$ $(m,n\ensuremath{\ge}3)$ bipartite tensor system, we show that the orthogonal complement of the space spanned by a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1d0c14b880185dcbcd944d57494d6eaf
https://doi.org/10.1103/physreva.79.032330
https://doi.org/10.1103/physreva.79.032330
Publikováno v:
Physical Review A. 77
In this Brief Report, we prove that an analytically solvable two-qubit entanglement monotone introduced by Zhang et al. [Phys. Rev. A 76, 032306 (2007)] is no greater than the square of concurrence. This proof is based on the equivalence between Zhan
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a3cb5c07482e9e5cbe0db2840cc40cd5
https://doi.org/10.1103/physreva.77.054302
https://doi.org/10.1103/physreva.77.054302