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Entanglement and Mixedness of Locally Cloned Non-Maximal W-State
Authors:Indranil Chakrabarty   Sovik Roy   Nirman Ganguly  Binayak S. Choudhury
Affiliation:(1) Heritage Institute of Technology, Kolkata, 107, West Bengal, India;(2) Techno India, Salt Lake, Kolkata, 91, West Bengal, India;(3) Bengal Engineering and Science University, Shibpur, West Bengal, India
Abstract:In this work we describe a protocol by which two of three parties generate two bipartite entangled state among themselves without involving third party, from a non maximal W-state or W-type state |X〉=α|001〉123+β|010〉123+γ|100〉123,α 2+β 2+γ 2=1 shared by three distant partners. Also we have considered the case β=γ, to obtain a range for α 2, for which the local output states are separable and non local output states are inseparable. We also find out the dependence of the mixedness of inseparable states with their amount of inseparability, for that range of α 2.
Keywords:Entanglement  Mixedness  Cloning  W-state
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