Entanglement content of quantum particle excitations. Part I. Free field theory
Entanglement content of quantum particle excitations. Part I. Free field theory
复制标题
量子粒子激发的纠缠含量。
DOI:
10.1007/jhep10(2018)039
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发表时间:
2018
影响因子:
5.4
通讯作者:
Castro-Alvaredo O
中科院分区:
文献类型:
--
作者:
Castro-Alvaredo O
We evaluate the entanglement entropy of a single connected region in excited states of one-dimensional massive free theories with finite numbers of particles, in the limit of large volume and region length. For this purpose, we use finite-volume form factor expansions of branch-point twist field two-point functions. We find that the additive contribution to the entanglement due to the presence of particles has a simple “qubit” interpretation, and is largely independent of momenta: it only depends on the numbers of groups of particles with equal momenta. We conjecture that at large momenta, the same result holds for any volume and region lengths, including at small scales. We provide accurate numerical verifications.
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DOI:
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发表时间:
2012
期刊:
影响因子:
--
作者:
Iztok Pižorn
通讯作者:
Iztok Pižorn
影响因子:
5.4
作者:
O. Castro
通讯作者:
O. Castro
DOI:
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发表时间:
1991
期刊:
影响因子:
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作者:
V. Yurov;A. B. Zamolodchikov
通讯作者:
A. B. Zamolodchikov
DOI:
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发表时间:
2007
期刊:
影响因子:
--
作者:
B. Pozsgay;G. Takács
通讯作者:
G. Takács
影响因子:
5.4
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