No-Cloning Theorem, Quantum Teleportation and Spooky Correlations

  • Bernard Zygelman


The no-cloning theorem states that an arbitrary quantum state cannot be copied from one qubit and duplicated on another qubit. We offer a proof of this theorem and illustrate how quantum states can be teleported between two qubits. The Bell and Clauser-Horne-Shimony-Holt inequalities are introduced and shown to be demonstrable features of entangled quantum systems. We discuss how the private key distribution problem is dealt with using quantum key distribution (QKD). The BB84 and Ekert protocols are examples of the latter, and we review and illustrate their implementation. We show how entangled states enable dense coding and offer a brief synopsis of Greenberger-Horne-Zeilinger GHZ states and their application.


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Copyright information

© Springer Nature Switzerland AG 2018

Authors and Affiliations

  • Bernard Zygelman
    • 1
  1. 1.Department of Physics and AstronomyUniversity of NevadaLas VegasUSA

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