München 2004 – scientific programme

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Q: Quantenoptik und Photonik

Q 23: Quanteninformation II

Q 23.8: Talk

Tuesday, March 23, 2004, 18:15–18:30, HS 101

Concurrence of mixed bipartite quantum states in arbitrary dimensions — •Florian Mintert¹, Marek Kus², and Andreas Buchleitner¹ — ¹Max Planck Institut fuer Physik komplexer Systeme — ²Cenrum Fizyki Teoreticznej PAN Warszawa

We consider the concurrence of mixed bipartite quantum states and derive an approch that leads to a lower bound for the considered quantity valid in arbitrary dimensions. This implies a weaker, purely algebraic estimate which detects mixed entangled states with positive partial transpose.