Entropy of a subalgebra of observables and the geometric entanglement entropy
Entropy of a subalgebra of observables and the geometric entanglement entropy
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可观测量子代数的熵和几何纠缠熵
DOI:
10.1103/physrevd.99.085001
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发表时间:
2019
影响因子:
5
通讯作者:
Satz, Alejandro
中科院分区:
文献类型:
--
作者:
Bianchi, Eugenio;Satz, Alejandro
The geometric entanglement entropy of a quantum field in the vacuum state is known to be divergent and, when regularized, to scale as the area of the boundary of the region. Here, we introduce an operational definition of the entropy of the vacuum restricted to a region; we consider a subalgebra of observables that has support in the region and a finite resolution. We then define the entropy of a state restricted to this subalgebra. For Gaussian states, such as the vacuum of a free scalar field, we discuss how this entropy can be computed. In particular, we show that for a spherical region we recover an area law under a suitable refinement of the subalgebra.
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影响因子:
3.6
作者:
L. Hackl;Eugenio Bianchi
通讯作者:
L. Hackl;Eugenio Bianchi
DOI:
10.1103/physrevd.52.3338
发表时间:
1995
期刊:
Physical review. D, Particles and fields
影响因子:
--
作者:
D. Lyth;Andrzei Woszczyna
通讯作者:
Andrzei Woszczyna
DOI:
--
发表时间:
1993
期刊:
--
影响因子:
--
作者:
R. Haag
通讯作者:
R. Haag
影响因子:
0.8
作者:
Adesso, Gerardo;Ragy, Sammy;Lee, Antony R.
通讯作者:
Lee, Antony R.