کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1856510 1529861 2014 14 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Recovering entanglement by local operations
ترجمه فارسی عنوان
بازیابی اشتباه توسط عملیات محلی
موضوعات مرتبط
مهندسی و علوم پایه فیزیک و نجوم فیزیک و نجوم (عمومی)
چکیده انگلیسی

We investigate the phenomenon of bipartite entanglement revivals under purely local operations in systems subject to local and independent classical noise sources. We explain this apparent paradox in the physical ensemble description of the system state by introducing the concept of “hidden” entanglement, which indicates the amount of entanglement that cannot be exploited due to the lack of classical information on the system. For this reason this part of entanglement can be recovered without the action of non-local operations or back-transfer process. For two noninteracting qubits under a low-frequency stochastic noise, we show that entanglement can be recovered by local pulses only. We also discuss how hidden entanglement may provide new insights about entanglement revivals in non-Markovian dynamics.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Annals of Physics - Volume 350, November 2014, Pages 211–224
نویسندگان
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