kraus representation
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2014 ◽  
Vol 25 (06) ◽  
pp. 1450048 ◽  
Author(s):  
M. Al Nuwairan

In this paper, we introduce EPOSIC channels, a class of SU(2)-covariant quantum channels. For each of them, we give a Kraus representation, its Choi matrix, a complementary channel, and its dual map. We show that they are the extreme points of all SU(2)-irreducibly covariant channels. As an application of these channels, we get an example of a positive map that is not completely positive.


2012 ◽  
Vol 09 (02) ◽  
pp. 1260014 ◽  
Author(s):  
ANDRZEJ JAMIOŁKOWSKI

In this paper we discuss some constructive procedures which can be used in characterization of irreducible quantum operations and quantum channels. Our method makes use of an explicit form of a fixed operation in its Kraus representation. A generalization of the Shemesh criterion is discussed.


2006 ◽  
Vol 74 (6) ◽  
Author(s):  
H. Nakazato ◽  
Y. Hida ◽  
K. Yuasa ◽  
B. Militello ◽  
A. Napoli ◽  
...  

Laser Physics ◽  
2006 ◽  
Vol 16 (11) ◽  
pp. 1512-1516 ◽  
Author(s):  
D. M. Tong ◽  
J. L. Chen ◽  
J. Y. Huang ◽  
L. C. Kwek ◽  
C. H. Oh

2005 ◽  
Vol 71 (5) ◽  
pp. 737-743 ◽  
Author(s):  
A. J. van Wonderen ◽  
K Lendi

2004 ◽  
Vol 70 (4) ◽  
Author(s):  
Yu-xi Liu ◽  
Şahin K. Özdemir ◽  
Adam Miranowicz ◽  
Nobuyuki Imoto

2003 ◽  
Vol 68 (3) ◽  
Author(s):  
Paweł Caban ◽  
Kordian A. Smoliński ◽  
Zbigniew Walczak
Keyword(s):  

2003 ◽  
Vol 67 (6) ◽  
Author(s):  
Hiroyuki Hayashi ◽  
Gen Kimura ◽  
Yukihiro Ota

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