multipartite quantum systems
Recently Published Documents


TOTAL DOCUMENTS

44
(FIVE YEARS 15)

H-INDEX

6
(FIVE YEARS 2)

2020 ◽  
Vol 384 (24) ◽  
pp. 126611
Author(s):  
Rejane Alves de Brito ◽  
Bertúlio de Lima Bernardo

2020 ◽  
Vol 59 (6) ◽  
pp. 1688-1698
Author(s):  
Hui Zhao ◽  
MeiMing Zhang ◽  
Shao-Ming Fei ◽  
Naihuan Jing

2020 ◽  
Vol 226 ◽  
pp. 02013
Author(s):  
Vladimir Kornyak

The multipartite quantum systems are of particular interest for the study of such phenomena as entanglement and non-local correlations. The symmetry group of the whole multipartite system is the wreath product of the group acting in the “local” Hilbert space and the group of permutations of the constituents. The dimension of the Hilbert space of a multipartite system depends exponentially on the number of constituents, which leads to computational difficulties. We describe an algorithm for decomposing representations of wreath products into irreducible components. The C implementation of the algorithm copes with representations of dimensions in quadrillions. The program, in particular, builds irreducible invariant projectors in the Hilbert space of a multipartite system. The expressions for these projectors are tensor product polynomials. This structure is convenient for efficient computation of quantum correlations in multipartite systems with a large number of constituents.


Sign in / Sign up

Export Citation Format

Share Document