Complex Langevin study for polarons in a one-dimensional two-component Fermi gas with attractive contact interactions
Complex Langevin study for polarons in a one-dimensional two-component Fermi gas with attractive contact interactions
复制标题
具有吸引接触相互作用的一维二维费米气体中极化子的复杂朗之万研究
DOI:
10.1103/physrevresearch.3.033180
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发表时间:
2021
影响因子:
4.2
通讯作者:
Tsutsui Shoichiro
中科院分区:
文献类型:
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作者:
Doi Takahiro M.;Tajima Hiroyuki;Tsutsui Shoichiro
We investigate a polaronic excitation in a one-dimensional spin-1/2 Fermi gas with contact attractive interactions, using the complex Langevin method, which is a promising approach to evade a possible sign problem in quantum Monte Carlo simulations. We found that the complex Langevin method works correctly in a wide range of temperature, interaction strength, and population imbalance. The Fermi polaron energy extracted from the two-point imaginary Green's function is not sensitive to the temperature and the impurity concentration in the parameter region we considered. Our results show a good agreement with the solution of the thermodynamic Bethe ansatz at zero temperature.
DOI:
10.1088/1742-6596/110/12/122005
发表时间:
2007-06
期刊:
Physics Reports
影响因子:
--
作者:
L. Debbio;H. Panagopoulos;Ettore Vicari Supa;S. O. Physics;U. Edinburgh;D. Physics;U. O. Cyprus;University of Pisa
通讯作者:
L. Debbio;H. Panagopoulos;Ettore Vicari Supa;S. O. Physics;U. Edinburgh;D. Physics;U. O. Cyprus;University of Pisa
DOI:
--
发表时间:
2014
期刊:
影响因子:
--
作者:
O. Gamayun;A. Pronko;M. Zvonarev
通讯作者:
M. Zvonarev
DOI:
--
发表时间:
2007
期刊:
影响因子:
--
作者:
D. Tahara;M. Imada;田原大資;M. Imada;M. Imada;M. Imada
通讯作者:
M. Imada