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SUMMARY:Determining a class of symmetric multiqubit pure states from its p
 arts - Sudha Shenoy (Kuvempu University)
DTSTART:20101007T131500Z
DTEND:20101007T141500Z
UID:TALK26329@talks.cam.ac.uk
CONTACT:Ashley Montanaro
DESCRIPTION:It is well known that the Majorana geometric representation is
  useful in arriving at SLOCC classification of symmetric N-qubit states. M
 aking use of this representation\, we investigate how the correlation info
 rmation in a class of symmetric states is imprinted in its parts. Consider
 ing a class of pure N-qubit symmetric states\, characterized by two distin
 ct Majorana spinors we show that only two (N -1) qubit reduced states suff
 ice to uniquely specify any state belonging to this class. This method can
  also be employed to prove an analogous result for a related non-symmetric
  class of states\, the so-called generalized Dicke-class. 
LOCATION:MR4\, Centre for Mathematical Sciences
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