TY - JOUR
T1 - Large-N-approximated field theory for multipartite entanglement
AU - Facchi, P.
AU - Florio, G.
AU - Parisi, G.
AU - Pascazio, S.
AU - Scardicchio, A.
N1 - Publisher Copyright:
© 2015 American Physical Society.
PY - 2015/12/16
Y1 - 2015/12/16
N2 - We try to characterize the statistics of multipartite entanglement of the random states of an n-qubit system. Unable to solve the problem exactly we generalize it, replacing complex numbers with real vectors with Nc components (the original problem is recovered for Nc=2). Studying the leading diagrams in the large-Nc approximation, we unearth the presence of a phase transition and, in an explicit example, show that the so-called entanglement frustration disappears in the large-Nc limit.
AB - We try to characterize the statistics of multipartite entanglement of the random states of an n-qubit system. Unable to solve the problem exactly we generalize it, replacing complex numbers with real vectors with Nc components (the original problem is recovered for Nc=2). Studying the leading diagrams in the large-Nc approximation, we unearth the presence of a phase transition and, in an explicit example, show that the so-called entanglement frustration disappears in the large-Nc limit.
UR - https://www.scopus.com/pages/publications/84950136651
U2 - 10.1103/PhysRevA.92.062330
DO - 10.1103/PhysRevA.92.062330
M3 - 文章
AN - SCOPUS:84950136651
SN - 1050-2947
VL - 92
JO - Physical Review A - Atomic, Molecular, and Optical Physics
JF - Physical Review A - Atomic, Molecular, and Optical Physics
IS - 6
M1 - 062330
ER -