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Relations for classical communication capacity and entanglement capability of two-qubit operations

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 نشر من قبل Barry C. Sanders
 تاريخ النشر 2002
  مجال البحث فيزياء
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Bipartite operations underpin both classical communication and entanglement generation. Using a superposition of classical messages, we show that the capacity of a two-qubit operation for error-free entanglement-assisted bidirectional classical communication can not exceed twice the entanglement capability. In addition we show that any bipartite two-qubit operation can increase the communication that may be performed using an ensemble by twice the entanglement capability.



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