Almost every pure state of three qubits is completely determined by its two-particle reduced density matricies

N Linden; S Popescu; WK Wooters

Almost every pure state of three qubits is completely determined by its two-particle reduced density matricies

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Abstract

In a system of n quantum particles, we define a measure of the degree of irreducible n-way correlation, by which we mean the correlation that cannot be accounted for by looking at the states of n - 1 particles. In the case of almost all pure states of three qubits, we show that there is no such correlation: almost every pure state of three qubits is completely determined by its two-particle reduced density matrices.

Translated title of the contribution	Almost every pure state of three qubits is completely determined by its two-particle reduced density matricies
Original language	English
Article number	Art. No. 207901
Journal	Physical Review Letters
Volume	89 (20)
Publication status	Published - 11 Nov 2002

Bibliographical note

Publisher: American Physical Soc
Other identifier: IDS number 610AL

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title = "Almost every pure state of three qubits is completely determined by its two-particle reduced density matricies",

abstract = "In a system of n quantum particles, we define a measure of the degree of irreducible n-way correlation, by which we mean the correlation that cannot be accounted for by looking at the states of n - 1 particles. In the case of almost all pure states of three qubits, we show that there is no such correlation: almost every pure state of three qubits is completely determined by its two-particle reduced density matrices.",

author = "N Linden and S Popescu and WK Wooters",

note = "Publisher: American Physical Soc Other identifier: IDS number 610AL",

year = "2002",

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language = "English",

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journal = "Physical Review Letters",

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T1 - Almost every pure state of three qubits is completely determined by its two-particle reduced density matricies

AU - Linden, N

AU - Popescu, S

AU - Wooters, WK

N1 - Publisher: American Physical Soc Other identifier: IDS number 610AL

PY - 2002/11/11

Y1 - 2002/11/11

N2 - In a system of n quantum particles, we define a measure of the degree of irreducible n-way correlation, by which we mean the correlation that cannot be accounted for by looking at the states of n - 1 particles. In the case of almost all pure states of three qubits, we show that there is no such correlation: almost every pure state of three qubits is completely determined by its two-particle reduced density matrices.

AB - In a system of n quantum particles, we define a measure of the degree of irreducible n-way correlation, by which we mean the correlation that cannot be accounted for by looking at the states of n - 1 particles. In the case of almost all pure states of three qubits, we show that there is no such correlation: almost every pure state of three qubits is completely determined by its two-particle reduced density matrices.

M3 - Article (Academic Journal)

VL - 89 (20)

JO - Physical Review Letters

JF - Physical Review Letters

SN - 0031-9007

M1 - Art. No. 207901

ER -