Performance of entanglement purification including maximally entangled mixed states
Juan Mauricio Torres,
József Zsolt Bernád,
Rocío Gómez-Rosas
Abstract:Entanglement between distant quantum systems is a critical resource for implementing quantum communication. This property is affected by external agents and can be restored by employing efficient entanglement purification protocols. In this work, we propose an entanglement purification protocol based on two entangling two-qubit operations that replace the usual controlled-NOT (CNOT) gate. These operations arise from a generalised quantum measurement and can be understood as measurement operators in a positive … Show more
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