A multilevel approach for a class of semidefinite programs

2016 ◽  
Author(s):  
Fu Lin ◽  
Zichao Di ◽  
Sven Leyffer
Keyword(s):  
Semidefinite Programs ◽  
Multilevel Approach

scholarly journals Jordan products of quantum channels and their compatibility

2021 ◽  
Vol 12 (1) ◽  
Author(s):  
Mark Girard ◽  
Martin Plávala ◽  
Jamie Sikora
Keyword(s):  
Quantum State ◽  
Sufficient Conditions ◽  
The Other ◽  
Independent Interest ◽  
Quantum Channels ◽  
Semidefinite Programs ◽  
Jordan Product ◽  
Marginal Problem ◽  
Jordan Products ◽  
Product Of Matrices

AbstractGiven two quantum channels, we examine the task of determining whether they are compatible—meaning that one can perform both channels simultaneously but, in the future, choose exactly one channel whose output is desired (while forfeiting the output of the other channel). Here, we present several results concerning this task. First, we show it is equivalent to the quantum state marginal problem, i.e., every quantum state marginal problem can be recast as the compatibility of two channels, and vice versa. Second, we show that compatible measure-and-prepare channels (i.e., entanglement-breaking channels) do not necessarily have a measure-and-prepare compatibilizing channel. Third, we extend the notion of the Jordan product of matrices to quantum channels and present sufficient conditions for channel compatibility. These Jordan products and their generalizations might be of independent interest. Last, we formulate the different notions of compatibility as semidefinite programs and numerically test when families of partially dephasing-depolarizing channels are compatible.

Ivermectin: A multilevel approach to evaluate effects in Prochilodus lineatus (Valenciennes, 1836) (Characiformes, Prochilodontidae), an inland fishery species

2021 ◽  
pp. 149515
Author(s):  
Ismael Esteban Lozano ◽  
Yanina Grisel Piazza ◽  
Paola Babay ◽  
Emanuel Sager ◽  
Fernando Román de la Torre ◽  
...  
Keyword(s):  
Prochilodus Lineatus ◽  
Multilevel Approach ◽  
Fishery Species

Multilevel approach to organizational and group safety climate and safety performance: Co-workers as the missing link

2012 ◽  
Vol 50 (9) ◽  
pp. 1847-1856 ◽  
Author(s):  
Margherita Brondino ◽  
Silvia A. Silva ◽  
Margherita Pasini
Keyword(s):  
Safety Climate ◽  
Safety Performance ◽  
Multilevel Approach ◽  
Missing Link
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