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  1. Home
  2. Indian Institute of Technology Madras
  3. Publication7
  4. Protocol using kicked Ising dynamics for generating states with maximal multipartite entanglement
 
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Protocol using kicked Ising dynamics for generating states with maximal multipartite entanglement

Date Issued
17-02-2015
Author(s)
Mishra, Sunil K.
Arul Lakshminarayan 
Indian Institute of Technology, Madras
Subrahmanyam, V.
DOI
10.1103/PhysRevA.91.022318
Abstract
We present a solvable model of iterating cluster state protocols that lead to entanglement production, between contiguous blocks, of 1 ebit per iteration. This continues until the blocks are maximally entangled, at which stage an unravelling begins at the same rate until the blocks are unentangled. The model is a variant of the transverse-field Ising model and can be implemented with controlled-not and single-qubit gates. The interqubit entanglement as measured by the concurrence is shown to be zero for periodic chain realizations, while for open boundaries there are very specific instances at which these can develop. Thus we introduce a class of simply produced states with very large multipartite entanglement content of potential use in measurement-based quantum computing.
Volume
91
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