AN ALGORITHM FOR CHECKING EXTREMALITY OF ENTANGLED STATES WITH POSITIVE PARTIAL TRANSPOSES

• 발행기관: 충청수학회
• 저자명: Kil Chan Ha
• 간행물 정보: 『Journal of the Chungcheong Mathematical Society』Volume 23, No. 4, 609~616쪽, 전체 8쪽
• 주제분류: 자연과학 > 자연과학일반
• 파일형태: PDF
• 발행일자: 2010.12.30

영문 초록

We characterize extreme rays of the cone T of all pos- itive semi-de¯nite block matrices whose partial transposes are also positive semi-de¯nite. We also construct an algorithm checking whether a given PPTES generates an extreme ray in the cone T or not. Using this algorithm, we give an example of 4 ­ 4 PPT entangle state of the type (5; 5), which generates extreme ray of the cone T

목차

1. Introduction

2. Characterization of extremal PPTES

3. An algorithm for checking the extremality of PPTES

References