Separability in 2×N composite quantum systems

B. Kraus; J. I. Cirac; S. Karnas; M. Lewenstein

Separability in 2×N composite quantum systems

B. Kraus, J. I. Cirac, S. Karnas, M. Lewenstein

Research output: Contribution to journal › Article › peer-review

112 Scopus citations

Abstract

The separability properties of density operators acting on C²⊗C^N and with positive partial transpose were studied. A necessary and sufficient criterion for separability of generic low-rank density operators ρ was derived. The resulting criterion requires findings roots of complex polynomials, that give rise to all the product vectors in the ranges of ρ and ρ^T(A).

Original language	English
Pages (from-to)	62302-62301
Number of pages	2
Journal	Physical Review A
Volume	61
Issue number	6
State	Published - 2000
Externally published	Yes

Cite this

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title = "Separability in 2×N composite quantum systems",

abstract = "The separability properties of density operators acting on C2⊗CN and with positive partial transpose were studied. A necessary and sufficient criterion for separability of generic low-rank density operators ρ was derived. The resulting criterion requires findings roots of complex polynomials, that give rise to all the product vectors in the ranges of ρ and ρT(A).",

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T1 - Separability in 2×N composite quantum systems

AU - Kraus, B.

AU - Cirac, J. I.

AU - Karnas, S.

AU - Lewenstein, M.

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N2 - The separability properties of density operators acting on C2⊗CN and with positive partial transpose were studied. A necessary and sufficient criterion for separability of generic low-rank density operators ρ was derived. The resulting criterion requires findings roots of complex polynomials, that give rise to all the product vectors in the ranges of ρ and ρT(A).

AB - The separability properties of density operators acting on C2⊗CN and with positive partial transpose were studied. A necessary and sufficient criterion for separability of generic low-rank density operators ρ was derived. The resulting criterion requires findings roots of complex polynomials, that give rise to all the product vectors in the ranges of ρ and ρT(A).

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AN - SCOPUS:0033699352

SN - 1050-2947

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SP - 62302

EP - 62301

JO - Physical Review A

JF - Physical Review A

IS - 6

ER -

Separability in 2×N composite quantum systems

Abstract

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