Journal
PHYSICAL REVIEW LETTERS
Volume 115, Issue 13, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.115.130401
Keywords
-
Categories
Funding
- EPSRC CDT on Controlled Quantum Dynamics
- EU STREP project PAPETS
- EU STREP project EQUAM
- EU Integrating project SIQS
- ERC Synergy grant BioQ
- Alexander von Humboldt Foundation
Ask authors/readers for more resources
We derive rigorous truncation-error bounds for the spin-boson model and its generalizations to arbitrary quantum systems interacting with bosonic baths. For the numerical simulation of such baths, the truncation of both the number of modes and the local Hilbert-space dimensions is necessary. We derive superexponential Lieb-Robinson-type bounds on the error when restricting the bath to finitely many modes and show how the error introduced by truncating the local Hilbert spaces may be efficiently monitored numerically. In this way we give error bounds for approximating the infinite system by a finite-dimensional one. As a consequence, numerical simulations such as the time-evolving density with orthogonal polynomials algorithm (TEDOPA) now allow for the fully certified treatment of the system-environment interaction.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available