skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Class of positive partial transposition states

Journal Article · · Physical Review. A
;  [1]
  1. Institute of Physics, Nicolaus Copernicus University, Grudziadzka 5/7, 87-100 Torun (Poland)

We construct a class of quantum bipartite d(multiply-in-circle sign)d states which are positive under partial transposition (PPT states). This class is invariant under the maximal commutative subgroup of U(d) and contains as special cases many well-known examples of PPT states. States from our class provide criteria for testing the indecomposability of positive maps. Such maps are crucial for constructing entanglement witnesses.

OSTI ID:
20853025
Journal Information:
Physical Review. A, Vol. 74, Issue 2; Other Information: DOI: 10.1103/PhysRevA.74.022308; (c) 2006 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 1050-2947
Country of Publication:
United States
Language:
English

Similar Records

Classes of n-copy undistillable quantum states with negative partial transposition
Journal Article · Fri Aug 01 00:00:00 EDT 2003 · Physical Review. A · OSTI ID:20853025

Unextendible product bases and extremal density matrices with positive partial transpose
Journal Article · Sat Oct 15 00:00:00 EDT 2011 · Physical Review. A · OSTI ID:20853025

Entanglement in SU(2)-invariant quantum systems: The positive partial transpose criterion and others
Journal Article · Fri Jul 15 00:00:00 EDT 2005 · Physical Review. A · OSTI ID:20853025