Groverian Entanglement Measure of Pure Quantum States with Arbitrary Partitions

Research paper by Yishai Shimoni, Ofer Biham

Indexed on: 18 Feb '07Published on: 18 Feb '07Published in: Quantum Physics


The Groverian entanglement measure of pure quantum states of $n$ qubits is generalized to the case in which the qubits are divided into any $m \le n$ parties and the entanglement between these parties is evaluated. To demonstrate this measure we apply it to general states of three qubits and to symmetric states with any number of qubits such as the Greenberg-Horne-Zeiliner state and the W state.