A new entanglement measure: D-concurrence

TL;DR

This paper introduces D-concurrence, a novel entanglement measure, establishes bounds and relationships with existing measures, and highlights its unique advantages over traditional concurrence.

Contribution

The paper proposes D-concurrence as a new entanglement measure, deriving bounds and comparing it to Wootters' concurrence to demonstrate its benefits.

Findings

Bounds for D-concurrence are derived.

Relationship established between D-concurrence and usual concurrence.

D-concurrence exhibits unique advantages over traditional measures.

Abstract

A new entanglement measure, which is called D-concurrence, is proposed. Then the upper and lower bounds for D-concurrence are obtained and the relationship between D-concurrence and the usual concurrence of Wootters was established. In addition, comparing with the usual concurrence, D-concurrence has some special merits.