کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
977204 933178 2006 10 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Thermo quantum dynamics in the transverse Ising chain
موضوعات مرتبط
مهندسی و علوم پایه ریاضیات فیزیک ریاضی
پیش نمایش صفحه اول مقاله
Thermo quantum dynamics in the transverse Ising chain
چکیده انگلیسی
Thermo quantum dynamics, which is formulated by using the eigenstate |Ψmax(m)(β)〉 of the quantum transfer-matrix with the maximum eigenvalue (where m denotes the Trotter number and β=1/kBT), is applied to a transverse Ising chain. In order to exemplify the formulation of the thermo quantum dynamics for “local” operators, we show how to evaluate both the thermal average 〈σjx〉 and the correlation function 〈σjxσj+rx〉. Furthermore, it is demonstrated for the first time that the limit m→∞ of the thermal state vector |Ψmax(m)(β)〉 exists in the diagonalized representation and that this thermal state vector can be regarded as the ground state vector of the corresponding virtual system.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Physica A: Statistical Mechanics and its Applications - Volume 368, Issue 2, 15 August 2006, Pages 449-458
نویسندگان
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