Clarisse, L., Ghosh, S., Severini, S. and Sudbery, A. (2007) The disentangling power of unitaries. Physics Letters A. pp. 400-402. ISSN 0375-9601
We define the disentangling power of a unitary operator in a similar way as the entangling power defined by Zanardi et al. [P. Zanardi, C. Zalka, L. Faoro, Phys. Rev. A 62 (2000) 030301(R), quant-ph/0005031]. A general formula is derived and it is shown that both quantities are directly proportional. All results concerning the entangling power can simply be translated into similar statements for the disentangling power. In particular, the disentangling power is maximal for certain permutations derived from orthogonal Latin squares. These permutations can therefore be interpreted as those that distort entanglement in a maximal way.
|Copyright, Publisher and Additional Information:||Copyright © 2007 Elsevier B.V. This is an author produced version of an article published in Physics Letters A.|
|Institution:||The University of York|
|Academic Units:||The University of York > Mathematics (York)|
|Depositing User:||Sherpa Assistant|
|Date Deposited:||28 Sep 2007 08:52|
|Last Modified:||26 Mar 2015 07:25|