تقرير
Quantum Monte Carlo solution of the dynamical mean field equations in real time
العنوان: | Quantum Monte Carlo solution of the dynamical mean field equations in real time |
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المؤلفون: | Dong, Qiaoyuan, Krivenko, Igor, Kleinhenz, Joseph, Antipov, Andrey E., Cohen, Guy, Gull, Emanuel |
المصدر: | Phys. Rev. B 96, 155126 (2017) |
سنة النشر: | 2017 |
المجموعة: | Condensed Matter |
مصطلحات موضوعية: | Condensed Matter - Strongly Correlated Electrons |
الوصف: | We present real-time inchworm quantum Monte Carlo results for single-site dynamical mean field theory on an infinite coordination number Bethe lattice. Our numerically exact results are obtained on the L-shaped Keldysh contour and, being evaluated in real-time, avoid the analytic continuation issues typically encountered in Monte Carlo calculations. Our results show that inchworm Monte Carlo methods have now reached a state where they can be used as dynamical mean field impurity solvers and the dynamical sign problem can be overcome. As non-equilibrium problems can be simulated at the same cost, we envisage the main use of these methods as dynamical mean field solvers for time-dependent problems far from equilibrium. |
نوع الوثيقة: | Working Paper |
DOI: | 10.1103/PhysRevB.96.155126 |
URL الوصول: | http://arxiv.org/abs/1706.02975 |
رقم الأكسشن: | edsarx.1706.02975 |
قاعدة البيانات: | arXiv |
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