Von Neumann Entropy in QFT
Von Neumann Entropy in QFT
复制标题
QFT 中的冯诺依曼熵
DOI:
10.1007/s00220-020-03702-7
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发表时间:
2020
影响因子:
2.4
通讯作者:
Xu, Feng
中科院分区:
文献类型:
--
作者:
Longo, Roberto;Xu, Feng
In the framework of Quantum Field Theory, we provide a rigorous, operator algebraic notion of entanglement entropy associated with a pair of open double conesof the spacetime, where the closure ofOis contained in. Given a QFT netof local von Neumann algebras, we consider the von Neumann entropyof the restriction of the vacuum state to the canonical intermediate typeIfactor for the inclusion of von Neumann algebras(split property). We show that this canonical entanglement entropyis finite for the chiral conformal net on the circle generated by finitely many free Fermions (here double cones are intervals). To this end, we first study the notion of von Neumann entropy of a closed real linear subspace of a complex Hilbert space, that we then estimate for the local free fermion subspaces. We further consider the lower entanglement entropy, the infimum of the vacuum von Neumann entropy of, wherehere runs over all the intermediate, discrete typeIvon Neumann algebras. We prove thatis finite for the local chiral conformal net generated by finitely many commutingU(1)-currents.
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DOI:
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发表时间:
2019
期刊:
影响因子:
--
作者:
J. Lapum;Oona St;M. Hughes;Andy Tan;Arina Bogdan;Frances Dimaranan;Rachel Frantzke;Nada Savicevic
通讯作者:
Nada Savicevic
DOI:
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发表时间:
1977
期刊:
影响因子:
--
作者:
M. Rieffel;A. V. Daele
通讯作者:
A. V. Daele
影响因子:
2.4
作者:
BUCHHOLZ, D
通讯作者:
BUCHHOLZ, D
DOI:
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发表时间:
1970
期刊:
影响因子:
--
作者:
H. Araki
通讯作者:
H. Araki
DOI:
--
发表时间:
1994
期刊:
影响因子:
--
作者:
Franca Figliolini;D. Guido
通讯作者:
D. Guido