Energy-saving fast-forward scaling
Quantum Physics
2025-02-12 v2 Statistical Mechanics
Abstract
We propose energy-saving fast-forward scaling. Fast-forward scaling is a method which enables us to speed up (or slow down) given dynamics in a certain measurement basis. We introduce energy costs of fast-forward scaling, and find possibility of energy-saving speedup for time-independent measurement bases. As concrete examples, we show such energy-saving fast-forward scaling in a two-level system and quantum annealing of a general Ising spin glass. We also discuss the influence of a time-dependent measurement basis, and give a remedy for unwanted energy costs. The present results pave the way for realization of energy-efficient quantum technologies.
Cite
@article{arxiv.2402.10683,
title = {Energy-saving fast-forward scaling},
author = {Takuya Hatomura},
journal= {arXiv preprint arXiv:2402.10683},
year = {2025}
}
Comments
Submission to SciPost