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A geometric journey toward genuine multipartite entanglement

Record Type:	Electronic resources : Monograph/item
Title/Author:	A geometric journey toward genuine multipartite entanglementby Songbo Xie.
Author:	Xie, Songbo.
Published:	Cham :Springer Nature Switzerland :2025.
Description:	xxiii, 105 p. :ill., digital ;24 cm.
Notes:	"Doctoral thesis accepted by the University of Rochester, Rochester, USA."
Contained By:	Springer Nature eBook
Subject:	Quantum entanglement.
Online resource:	https://doi.org/10.1007/978-3-032-00171-9
ISBN:	9783032001719$q(electronic bk.)

A geometric journey toward genuine multipartite entanglement
Xie, Songbo.

A geometric journey toward genuine multipartite entanglement[electronic resource] /by Songbo Xie. - Cham :Springer Nature Switzerland :2025. - xxiii, 105 p. :ill., digital ;24 cm. - Springer theses,2190-5061. - Springer theses..

"Doctoral thesis accepted by the University of Rochester, Rochester, USA."

Preliminary: Hilbert Space and Linear Operators -- Review: Bipartite Entanglement -- Breakthrough: Multipartite Entanglement -- Geometric Journey: Multipartite Entanglement -- Concluding Remarks.

This thesis proposes a novel measure of quantum entanglement that can be used to characterize the degree of entanglement of three (or more) parties. Entanglement has been studied and used in many ways since Erwin Schrödinger defined and named it in 1935, but quantifiable measures of the degree of entanglement, known as concurrence, have long been limited to two quantum parties (two qubits, for example). Three-qubit states, which are known to be more reliable for teleportation of qubits than two-party entanglement, run into difficult criteria in entanglement-measure theory, and efforts to quantify a measure of genuine multipartite entanglement (GME) for three-qubit states have frustrated quantum theorists for decades. This work explores a novel triangle inequality among three-qubit concurrences and demonstrates that the area of a 3-qubit concurrence triangle provides the first measure of GME for 3-qubit systems. The proposed measure, denoted "entropic fill," has an intuitive interpretation related to the hypervolume of a simplex describing the relation between any subpart of the system with the rest. Importantly, entropic fill not only gives the first successful measure of GME for 3-party quantum systems, but also can be generalized into higher dimensions, providing a path to quantify quantum entanglement among many parties.

ISBN: 9783032001719$q(electronic bk.)

Standard No.: 10.1007/978-3-032-00171-9doiSubjects--Topical Terms:

738362
Quantum entanglement.

LC Class. No.: QC174.17.E58

Dewey Class. No.: 530.12

A geometric journey toward genuine multipartite entanglement
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