Non-Markovianity Benefits Quantum Dynamics Simulation
- URL: http://arxiv.org/abs/2311.17622v1
- Date: Wed, 29 Nov 2023 13:33:14 GMT
- Title: Non-Markovianity Benefits Quantum Dynamics Simulation
- Authors: Yu-Qin Chen, Shi-Xin Zhang, and Shengyu Zhang
- Abstract summary: We show that non-Markovian noise with memory effects and temporal correlations can significantly improve the accuracy of quantum dynamics simulation.
Our findings shed light on the importance of considering non- Markovianity in quantum dynamics simulation.
- Score: 5.399532145408153
- License: http://creativecommons.org/licenses/by/4.0/
- Abstract: Quantum dynamics simulation on analog quantum simulators and digital quantum
computer platforms has emerged as a powerful and promising tool for
understanding complex non-equilibrium physics. However, the impact of quantum
noise on the dynamics simulation, particularly non- Markovian noise with memory
effects, has remained elusive. In this Letter, we discover unexpected benefits
of non-Markovianity of quantum noise in quantum dynamics simulation. We
demonstrate that non-Markovian noise with memory effects and temporal
correlations can significantly improve the accuracy of quantum dynamics
simulation compared to the Markovian noise of the same strength. Through
analytical analysis and extensive numerical experiments, we showcase the
positive effects of non-Markovian noise in various dynamics simulation
scenarios, including decoherence dynamics of idle qubits, intriguing
non-equilibrium dynamics observed in symmetry protected topological phases, and
many-body localization phases. Our findings shed light on the importance of
considering non- Markovianity in quantum dynamics simulation, and open up new
avenues for investigating quantum phenomena and designing more efficient
quantum technologies.
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