On the entanglement structure in quantum cloning

Abstract

We study the entanglement properties of the output state of a universal cloning machine. We analyse in particular bipartite and tripartite entanglement of the clones, and discuss the ``classical limit'' of infinitely many output copies.

7 pages, 1 figure, contribution to "David Mermin Festschrift", Foundations of Physics

References in corpus (4)

• Scaling of Entanglement close to a Quantum Phase Transitions
• Experimental Quantum Cloning of Single Photons
• Bell's theorem with and without inequalities for the three-qubit Greenberger-Horne-Zeilinger and W states
• Approximate Quantum Cloning with Nuclear Magnetic Resonance

Cited by in corpus (16)

• Quantum cloning
• Quantum Cloning Machines and the Applications
• Multipartite entanglement in quantum spin chains
• Separability in Asymmetric Phase-Covariant Cloning
• Quantum computing with mixed states
• Universal and phase covariant superbroadcasting for mixed qubit states
• Entanglement of a Single Spin-1 Object: An Example of Ubiquitous Entanglement
• A Revisit to Non-maximally Entangled Mixed States: Teleportation Witness, Noisy Channel and Discord
• Entanglement, EPR correlations and mesoscopic quantum superposition by the high-gain quantum injected parametric amplification
• Teleportation criteria based on maximum eigenvalue of the shared $d\otimes d$ dimenional mixed state: Beyond Singlet Fraction
• Detection of mixed bipartite entangled state in arbitrary dimension via structural physical approximation of partial transposition
• Quantum Cloning without Interference
• Coherence and entanglement under three qubit cloning operations
• Realization of the Optimal Universal Quantum Entangler
• Virtual Cloning of Quantum States
• Study on Entanglement and its Utility in Information Processing