کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1819440 1525755 2010 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
The controlled creation of a maximally entangled state between a SQUID ring and a single electromagnetic field mode
موضوعات مرتبط
مهندسی و علوم پایه فیزیک و نجوم فیزیک ماده چگال
پیش نمایش صفحه اول مقاله
The controlled creation of a maximally entangled state between a SQUID ring and a single electromagnetic field mode
چکیده انگلیسی

We consider a SQUID ring inductively coupled to an electromagnetic field mode, both treated quantum mechanically. We demonstrate a method for creating a maximally entangled state between the ring and the field mode. Our method utilises a non-adiabatic external magnetic flux pulse to move into and out of a transition region. Hence, our approach is fundamentally different to techniques based on Landau–Zener tunnelling that can also be used to achieve similar results. Our analysis is extended to include the effects of coupling the system to a dissipative environment. With this model we show that although such an environment makes a noticeable difference to the time evolution of the system, it need not destroy the entanglement of this coupled system over time scales required for quantum technologies.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Physica C: Superconductivity - Volume 470, Issues 13–14, 1 July 2010, Pages 517–522
نویسندگان
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