An Experimentally Accessible Geometric Measure for Entanglement in N-qudit Pure States
نویسندگان
چکیده
We present a multipartite entanglement measure for N -qudit pure states, using the norm of the correlation tensor which occurs in the Bloch representation of the state. We compute this measure for important class of N -qutrit pure states, namely general GHZ states. We prove that this measure possesses almost all the properties expected of a good entanglement measure, including monotonicity. Finally, we extend this measure to N -qudit mixed states via convex roof construction and establish its various properties, including its monotonicity.
منابع مشابه
An Experimentally Accessible Geometric Measure for Entanglement in N-qubit Pure States
We present a multipartite entanglement measure for N -qubit pure states, using the norm of the correlation tensor which occurs in the Bloch representation of the state. We compute this measure for several important classes of N -qubit pure states such as GHZ states, W states and their superpositions. We compute this measure for interesting applications like one dimensional Heisenberg antiferrom...
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