Broadcasting of three qubit entanglement via local copying and entanglement swapping

Abstract

In this work,We investigate the problem of secretly broadcasting of three-qubit entangled state between two distant partners. The interesting feature of this problem is that starting from two particle entangled state shared between two distant partners we find that the action of local cloner on the qubits and the measurement on the machine state vector generates three-qubit entanglement between them. The broadcasting of entanglement is made secret by sending the measurement result secretly using cryptographic scheme based on orthogonal states. Further we show that this idea can be extended to generate three particle entangled state between three distant partners.

arXiv comment18 pages, 4 figures, Accepted in Physical Review A

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Cited by in corpus (8)

• Quantum Cloning Machines and the Applications
• Complementarity between Tripartite Quantum Correlation and Bipartite Bell Inequality Violation in Three Qubit States
• Broadcasting of continuous variable entanglement
• Broadcasting of Quantum Correlations: Possibilities & Impossibilities
• Complementarity of Quantum Correlations in Cloning and Deleting of Quantum State
• Universal covariant quantum cloning circuits for qubit entanglement manipulation
• Measurement Induced Randomness and State Merging
• Is Post Selection Physical: A Device Independent Outlook