Tighter monogamy relations in multi-qubit systems
نویسندگان
چکیده
In this paper, we present some monogamy relations of multiqubit quantum entanglement in terms the $$\beta $$ th power concurrence, formation and convex-roof extended negativity. These are proved to be tighter than existing ones, together with detailed examples showing tightness.
منابع مشابه
Linear monogamy of entanglement in three-qubit systems
For any three-qubit quantum systems ABC, Oliveira et al. numerically found that both the concurrence and the entanglement of formation (EoF) obey the linear monogamy relations in pure states. They also conjectured that the linear monogamy relations can be saturated when the focus qubit A is maximally entangled with the joint qubits BC. In this work, we prove analytically that both the concurren...
متن کاملMonogamy relation of multi-qubit systems for squared Tsallis-q entanglement
Tsallis-q entanglement is a bipartite entanglement measure which is the generalization of entanglement of formation for q tending to 1. We first expand the range of q for the analytic formula of Tsallis-q entanglement. For , we prove the monogamy relation in terms of the squared Tsallis-q entanglement for an arbitrary multi-qubit systems. It is shown that the multipartite entanglement indicator...
متن کاملGeneral monogamy inequality for bipartite qubit entanglement.
We consider multipartite states of qubits and prove that their bipartite quantum entanglement, as quantified by the concurrence, satisfies a monogamy inequality conjectured by Coffman, Kundu, and Wootters. We relate this monogamy inequality to the concept of frustration of correlations in quantum spin systems.
متن کاملMultipartite entanglement indicators based on monogamy relations of n-qubit symmetric states
Constructed from Bai-Xu-Wang-class monogamy relations, multipartite entanglement indicators can detect the entanglement not stored in pairs of the focus particle and the other subset of particles. We investigate the k-partite entanglement indicators related to the αth power of entanglement of formation (αEoF) for k ≤ n, αϵ and n-qubit symmetric states. We then show that (1) The indicator based ...
متن کاملQuantification of Complementarity in Multi-Qubit Systems
Xinhua Peng, Xiwen Zhu, Dieter Suter, Jiangfeng Du, Maili Liu, and Kelin Gao Fachbereich Physik, Universität Dortmund, 44221 Dortmund, Germany Wuhan Institute of Physics and Mathematics, Chinese Academy of Sciences, Wuhan 430071, P. R. China and Hefei National Laboratory for Physical Sciences at Microscale and Department of Modern Physics, University of Science and Technology of China, Hefei, A...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Quantum Information Processing
سال: 2022
ISSN: ['1573-1332', '1570-0755']
DOI: https://doi.org/10.1007/s11128-022-03573-y