کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
978694 | 933298 | 2011 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Detection of avoided crossings by fidelity
دانلود مقاله + سفارش ترجمه
دانلود مقاله ISI انگلیسی
رایگان برای ایرانیان
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
ریاضیات
فیزیک ریاضی
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Detection of avoided crossings by fidelity Detection of avoided crossings by fidelity](/preview/png/978694.png)
چکیده انگلیسی
The fidelity, defined as overlap of eigenstates of two slightly different Hamiltonians, is proposed as an efficient detector of avoided crossings in the energy spectrum. This new application of fidelity is motivated for model systems, and its value for analyzing complex quantum spectra is underlined by applying it to a random matrix model and a tilted Bose–Hubbard system.
Research highlights
► We propose fidelity as an efficient detector of avoided crossings in energy spectra.
► Fidelity allows local as well as global statistical characterization of spectra.
► Our fidelity measure can be used for analyzing complex quantum systems.
► Results are verified for a random matrix model and a Bose–Hubbard system.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Physica A: Statistical Mechanics and its Applications - Volume 390, Issue 7, 1 April 2011, Pages 1363–1369
Journal: Physica A: Statistical Mechanics and its Applications - Volume 390, Issue 7, 1 April 2011, Pages 1363–1369
نویسندگان
Patrick Plötz, Michael Lubasch, Sandro Wimberger,