Entanglement capacity of fermionic Gaussian states

Autor:	Huang, Youyi, Wei, Lu
Rok vydání:	2023
Předmět:	Mathematical Physics Computer Science - Information Theory Mathematics - Probability Quantum Physics
Zdroj:	J. Phys. A: Math. Theor. 56 435201, 2023
Druh dokumentu:	Working Paper
DOI:	10.1088/1751-8121/acfc06
Popis:	We study the capacity of entanglement as an alternative to entanglement entropies in estimating the degree of entanglement of quantum bipartite systems over fermionic Gaussian states. In particular, we derive the exact and asymptotic formulas of average capacity of two different cases - with and without particle number constraints. For the later case, the obtained formulas generalize some partial results of average capacity in the literature. The key ingredient in deriving the results is a set of new tools for simplifying finite summations developed very recently in the study of entanglement entropy of fermionic Gaussian states. Comment: 39 pages, 1 figure
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/2302.02229 Zobrazit plný text záznamu View this record from Arxiv