scholarly journals Inequalities related to partial transpose and partial trace

2017 ◽  
Vol 516 ◽  
pp. 1-7 ◽  
Author(s):  
Daeshik Choi
2005 ◽  
Vol 03 (01) ◽  
pp. 195-199 ◽  
Author(s):  
P. GAWRON ◽  
J. A. MISZCZAK

We describe the [Formula: see text] package of functions useful for simulations of quantum algorithms and protocols. The presented package allows one to perform simulations with mixed states. We present numerical implementation of important quantum mechanical operations — partial trace and partial transpose. Those operations are used as building blocks of algorithms for analysis of entanglement and quantum error correction codes. A simulation of Shor's algorithm is presented as an example of package capabilities.


2021 ◽  
Vol 127 (6) ◽  
Author(s):  
Xiao-Dong Yu ◽  
Satoya Imai ◽  
Otfried Gühne
Keyword(s):  

2010 ◽  
Vol 31 (6) ◽  
pp. 589-598
Author(s):  
Andrei Khrennikov ◽  
Masanori Ohya ◽  
Naboru Watanabe

Entropy ◽  
2020 ◽  
Vol 22 (1) ◽  
pp. 62 ◽  
Author(s):  
Bruno Leggio ◽  
Anna Napoli ◽  
Hiromichi Nakazato ◽  
Antonino Messina

In the general framework of d 1 × d 2 mixed states, we derive an explicit bound for bipartite negative partial transpose (NPT) entanglement based on the mixedness characterization of the physical system. The derived result is very general, being based only on the assumption of finite dimensionality. In addition, it turns out to be of experimental interest since some purity-measuring protocols are known. Exploiting the bound in the particular case of thermal entanglement, a way to connect thermodynamic features to the monogamy of quantum correlations is suggested, and some recent results on the subject are given a physically clear explanation.


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