Phases of translation-invariant systems out of equilibrium: iterative Green’s function techniques and renormalization group approaches
Phases of translation-invariant systems out of equilibrium: iterative Green’s function techniques and renormalization group approaches
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平移不变系统失去平衡的阶段:迭代格林函数技术和重正化群方法
DOI:
10.1088/1367-2630/ab990d
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发表时间:
2020
影响因子:
3.3
通讯作者:
C. Karrasch
中科院分区:
文献类型:
--
作者:
C. Klöckner;D. M. Kennes;C. Karrasch
We introduce a method to evaluate the steady-state non-equilibrium Keldysh–Schwinger Green's functions for infinite systems subject to both an electric field and a coupling to reservoirs. The method we present exploits a physical quasi-translation invariance, where a shift by one unit cell leaves the physics invariant if all electronic energies are simultaneously shifted by the magnitude of the electric field. Our framework is straightaway applicable to diagrammatic many-body methods. We discuss two flagship applications, mean-field theories as well as a sophisticated second-order functional renormalization group approach. The latter allows us to push the renormalization-group characterization of phase transitions for lattice fermions into the out-of-equilibrium realm. We exemplify this by studying a model of spinless fermions, which in equilibrium exhibits a Berezinskii–Kosterlitz–Thouless phase transition.
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DOI:
10.1088/1751-8113/43/10/103001
发表时间:
2009
期刊:
Journal of Physics A: Mathematical and Theoretical
影响因子:
--
作者:
S. G. Jakobs;M. Pletyukhov;H. Schoeller
通讯作者:
H. Schoeller
DOI:
--
发表时间:
2007
期刊:
影响因子:
--
作者:
J. Carmelo;J. M. B. L. D. Santos;V. Vieira;P. Sacramento
通讯作者:
P. Sacramento
DOI:
--
发表时间:
2009
期刊:
Phys Rev B 79
影响因子:
--
作者:
T. S. Inada;l. Terasaki;H. Mori;T. Mori
通讯作者:
T. Mori
DOI:
--
发表时间:
2006
期刊:
影响因子:
--
作者:
V. Turkowski;J. Freericks
通讯作者:
J. Freericks
DOI:
--
发表时间:
2010
期刊:
影响因子:
--
作者:
F. Heidrich;I. González;K. Al;A. Feiguin;M. Rozenberg;E. Dagotto
通讯作者:
E. Dagotto