PMID- 36546797
OWN - NLM
STAT- PubMed-not-MEDLINE
DCOM- 20221222
LR  - 20221222
IS  - 1089-7690 (Electronic)
IS  - 0021-9606 (Linking)
VI  - 157
IP  - 22
DP  - 2022 Dec 14
TI  - On the practical truncation tier of fermionic hierarchical equations of motion.
PG  - 224107
LID - 10.1063/5.0130355 [doi]
AB  - The fermionic hierarchical equations of motion (HEOM) approach has found wide 
      application in the exploration of open quantum systems, and extensive efforts 
      have been committed to improving its efficiency and accuracy in practical 
      calculations. In this work, by scrutinizing the stationary-state and dynamic 
      properties of Kondo-correlated quantum impurity systems, we show that the 
      strength of Kondo correlation induced by the system-environment entanglement 
      primarily determines the converged hierarchical truncation tier of the HEOM 
      method. This complements the rule of thumb regarding the positive correlation 
      between the height of hierarchy and system-environment coupling strength. These 
      insights will provide useful guidelines for developing a more sophisticated 
      fermionic HEOM method for the investigation of many-body open quantum systems.
FAU - Ding, Xu
AU  - Ding X
AUID- ORCID: 0000-0002-6977-4157
AD  - Hefei National Research Center for Physical Sciences at the Microscale and 
      Synergetic Innovation Center of Quantum Information and Quantum Physics, 
      University of Science and Technology of China, Anhui, Hefei 230026, China.
FAU - Zhang, Daochi
AU  - Zhang D
AUID- ORCID: 0000-0003-1921-8141
AD  - Hefei National Research Center for Physical Sciences at the Microscale and 
      Synergetic Innovation Center of Quantum Information and Quantum Physics, 
      University of Science and Technology of China, Anhui, Hefei 230026, China.
FAU - Ye, Lyuzhou
AU  - Ye L
AUID- ORCID: 0000-0001-8016-722X
AD  - Hefei National Research Center for Physical Sciences at the Microscale and 
      Synergetic Innovation Center of Quantum Information and Quantum Physics, 
      University of Science and Technology of China, Anhui, Hefei 230026, China.
FAU - Zheng, Xiao
AU  - Zheng X
AUID- ORCID: 0000-0002-9804-1833
AD  - Hefei National Research Center for Physical Sciences at the Microscale and 
      Synergetic Innovation Center of Quantum Information and Quantum Physics, 
      University of Science and Technology of China, Anhui, Hefei 230026, China.
FAU - Yan, YiJing
AU  - Yan Y
AUID- ORCID: 0000-0002-4499-8154
AD  - Hefei National Research Center for Physical Sciences at the Microscale and IChEM, 
      University of Science and Technology of China, Anhui, Hefei 230026, China.
LA  - eng
PT  - Journal Article
PL  - United States
TA  - J Chem Phys
JT  - The Journal of chemical physics
JID - 0375360
SB  - IM
EDAT- 2022/12/23 06:00
MHDA- 2022/12/23 06:01
CRDT- 2022/12/22 08:33
PHST- 2022/12/22 08:33 [entrez]
PHST- 2022/12/23 06:00 [pubmed]
PHST- 2022/12/23 06:01 [medline]
AID - 10.1063/5.0130355 [doi]
PST - ppublish
SO  - J Chem Phys. 2022 Dec 14;157(22):224107. doi: 10.1063/5.0130355.