کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1857407 1529871 2014 41 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Probing many-body interactions in an optical lattice clock
ترجمه فارسی عنوان
تست تعاملات بسیاری از بدن در یک ساعت شبکه نوری
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه فیزیک و نجوم فیزیک و نجوم (عمومی)
چکیده انگلیسی
We present a unifying theoretical framework that describes recently observed many-body effects during the interrogation of an optical lattice clock operated with thousands of fermionic alkaline earth atoms. The framework is based on a many-body master equation that accounts for the interplay between elastic and inelastic p-wave and s-wave interactions, finite temperature effects and excitation inhomogeneity during the quantum dynamics of the interrogated atoms. Solutions of the master equation in different parameter regimes are presented and compared. It is shown that a general solution can be obtained by using the so called Truncated Wigner Approximation which is applied in our case in the context of an open quantum system. We use the developed framework to model the density shift and decay of the fringes observed during Ramsey spectroscopy in the JILA 87Sr and NIST 171Yb optical lattice clocks. The developed framework opens a suitable path for dealing with a variety of strongly-correlated and driven open-quantum spin systems.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Annals of Physics - Volume 340, Issue 1, January 2014, Pages 311-351
نویسندگان
, , , , , , , , , , ,