首页|Freezing imaginarity of quantum states based on l1-norm
Freezing imaginarity of quantum states based on l1-norm
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We discuss freezing of quantum imaginarity based on l1-norm.Several properties about a quantity of imaginarity based on l1-norm are revealed.For a qubit(2-dimensional)system,we characterize the structure of real quantum operations that allow for freezing the quantity of imaginarity of any state.Furthermore,we characterize the structure of local real operations which can freeze the quantity of imaginarity of a class of N-qubit quantum states.
imaginarity freezingl1-normreal operation
韩烁、郑冰轲、郭志华
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School of Mathematics and Statistics,Shaanxi Normal University,Xi'an 710119,China
National Natural Science Foundation of ChinaNatural science Basic Research Plan in Shaanxi Province of China
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