How entangled can two couples get?

TY - JOUR

T1 - How entangled can two couples get?

AU - Higuchi, A

AU - Sudbery, A

PY - 2000/8/28

Y1 - 2000/8/28

N2 - We describe a pure state of four qubits whose single-qubit density matrices are all maximally mixed and whose average entanglement as a system of two pairs of qubits appears to be maximal. (C) 2000 Elsevier Science B.V. All rights reserved.

AB - We describe a pure state of four qubits whose single-qubit density matrices are all maximally mixed and whose average entanglement as a system of two pairs of qubits appears to be maximal. (C) 2000 Elsevier Science B.V. All rights reserved.

M3 - Article

SN - 0375-9601

VL - 273

SP - 213

EP - 217

JO - Physics Letters A

JF - Physics Letters A

IS - 4

ER -