2016/10/06 by Chao Lei, Shijie Peng, Chenyong Ju +3 · 1 citation
Computer Science · Physics and Astronomy · #Coherence (philosophical gambling strategy) #Computer science #Decoherence-free subspaces #Laser-Matter Interactions and Applications #Open quantum system #Physics #Quantum #Quantum Information and Cryptography #Quantum computer #Quantum decoherence #Quantum information #Quantum mechanics #Quantum network #Quantum sensor #Quantum system #Quantum technology #Spectroscopy and Quantum Chemical Studies #Statistical physics #quant-ph
paper · pdf · doi:10.1038/s41598-017-12280-z
published as Scientific Reports 7, 11937 (2017) · 5 pages, 3 figures
arxiv created 2016/10/06 · openalex publication_date 2017/09/14 · arxiv updated 2017/09/28 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/31
Quantum mechanical systems lose coherence through interacting with external environments-a process known as decoherence. Although decoherence is detrimental for most of the tasks in quantum information processing, a substantial degree of decoherence is crucial for boosting the efficiency of quantum processes, for example, in quantum biology and other open systems. The key to the success in simulating those open quantum systems is therefore the ability of controlling decoherence, instead of eliminating it. Motivated by simulating quantum open systems with Nitrogen-Vacancy centers, which has become an increasingly important platform for quantum information processing tasks, we developed a new set of steering pulse sequences for controlling various coherence times of Nitrogen-Vacancy centers; our method is based on a hybrid approach that exploits ingredients in both digital and analog quantum simulations to dynamically couple or decouple the system with the physical environment. Our numerical simulations, based on experimentally-feasible parameters, indicate that decoherence of Nitrogen-Vacancy centers can be controlled externally to a very large extend.