Entanglement classification and non--separability certification via Greenberger-Horne-Zeilinger-class fidelity

M Płodzień, J Chwedeńczuk, M Lewenstein… - Physical Review A, 2024 - APS
Many-body quantum systems can be characterized using the notions of k-separability and
entanglement depth. A quantum state is k-separable if it can be expressed as a mixture of k …

A geometric formulation to measure global and genuine entanglement in three-qubit systems

S Luna-Hernández, M Enríquez, O Rosas-Ortiz - Scientific Reports, 2024 - nature.com
We introduce a purely geometric formulation for two different measures addressed to
quantify the entanglement between different parts of a tripartite qubit system. Our approach …

Evidence for unexpected robustness of multipartite entanglement against sudden death from spontaneous emission

S **e, D Younis, JH Eberly - Physical Review Research, 2023 - APS
Entanglement is known to decay even in isolated systems, an effect attributed to
spontaneous emission. This fragility of entanglement can be exacerbated by entanglement …

Faithful geometric measures for genuine tripartite entanglement

X Ge, L Liu, Y Wang, Y **ang, G Zhang, L Li, S Cheng - Physical Review A, 2024 - APS
We present a faithful geometric picture for genuine tripartite entanglement of discrete,
continuous, and hybrid quantum systems. We first find that the triangle relation E i| jk α≤ E j …

Tensorial Quantum Mechanics: Back to Heisenberg and Beyond

C de Ronde, RF Mouján, C Massri - arxiv preprint arxiv:2410.09535, 2024 - arxiv.org
In this work we discuss the establishment of Standard Quantum Mechanics (SQM)
developed through Schr\" odinger's and Dirac's wave-vectorial reformulations of …

Multi-Screen Entanglement in Tensorial Quantum Mechanics

C de Ronde, RF Mouján, C Massri - arxiv preprint arxiv:2412.04397, 2024 - arxiv.org
In this work we present an invariant-objective formalization of multi screen-entanglement
grounded on Tensorial Quantum Mechanics (TQM)[12]. This new tensorial formulation of the …

Multipartite entanglement and geometry

S **e, JH Eberly - Photonics for Quantum 2023, 2023 - spiedigitallibrary.org
Genuine multipartite entanglement is crucial for quantum information and quantum
technologies but quantifying it has been a long-standing challenge. Most existing measures …

Geometric genuine N-partite entanglement measure for arbitrary dimensions

H Zhao, PW Ma, SM Fei, ZX Wang - Quantum Information Processing, 2024 - Springer
We present proper genuine multipartite entanglement (GME) measures for arbitrary
multipartite and dimensional systems. By using the volume of concurrence regular polygonal …

Multipartite Entanglement Measure: Genuine to Absolutely Maximally Entangled

S Aravinda - arxiv preprint arxiv:2410.15864, 2024 - arxiv.org
Multipartite entanglement is a fundamental aspect of quantum mechanics, crucial to
advancements in quantum information processing and quantum computation. Within this …

Entanglement of Assistance as a measure of multiparty entanglement

I Biswas, A Bhunia, S Bera, I Chattopadhyay… - arxiv preprint arxiv …, 2024 - arxiv.org
Quantifying multipartite entanglement poses a significant challenge in quantum information
theory, prompting recent advancements in methodologies to assess it. We introduce the …