Published September 12, 2024 | Version v1
Journal article

Manipulating the relaxation time of boundary-dissipative systems through bond dissipation

  • 1. International Quantum Academy, Shenzhen 518048, China
  • 2. Shenzhen Institute for Quantum Science and Engineering, Southern University of Science and Technology, Shenzhen 518055, China
  • 3. Guangdong Provincial Key Laboratory of Quantum Science and Engineering, Southern University of Science and Technology, Shenzhen 518055, China

Description

Relaxation time plays a crucial role in describing the relaxation processes of quantum systems. We study the effect of a type of bond dissipation on the relaxation time of boundary dissipative systems and find that it can change the scaling of the relaxation time TcLz from z=3 to a value significantly less than 3. We further reveal that the reason such bond dissipation can significantly reduce the relaxation time is that it can selectively target specific states. For Anderson-localized systems, the scaling behavior of the relaxation time changes from an exponential form to a power-law form as the system size varies. This is because the bond dissipation we consider can not only select specific states but can also disrupt the localization properties. Our work reveals that in open systems one type of dissipation can be used to regulate the effects produced by another type of dissipation.

Additional details

Identifiers

DOI
10.1103/PhysRevB.110.104305;
arXiv
arXiv:2406.04183;
Crossref Funder ID
10.13039/501100012166; 10.13039/501100001809; 10.13039/501100015956;

Publishing Information

Journal Title
Physical Review B
Journal Volume
110
Journal Issue
10
Journal Page Range
8 pgs.
ISSN
1550-235X

Optional Information

Copyright
©2024 American Physical Society
Contract/Grant/Project number
2022YFA1405800; 12104205; 2018B030326001
Notes
These authors contributed equally to this work.; Contact Email: Contact author: wangyc3@sustech.edu.cn; Record automatically processed
Funding organization
National Key Research and Development Program of China; National Natural Science Foundation of China; Special Project for Research and Development in Key areas of Guangdong Province