Effect of phase and modes coupling of whispering gallery modes on quantum state transfer between nitrogen vacancy centers
At a Glance
Section titled āAt a Glanceā| Metadata | Details |
|---|---|
| Publication Date | 2025-05-02 |
| Journal | Physica Scripta |
| Authors | Hamad Ali, Abdul Basit |
Abstract
Section titled āAbstractāAbstract We theoretically investigate an efficient scheme for quantum state transfer (QST) between two nitrogen-vacancy (N-V) centers coupled to the whispering gallery modes (WGM) of a micro-resonator. We analyze the impact of mode coupling and the distance between two N-V centers on the dynamics of state transfer. Specifically, we explore QST under three coupling regimes:comparable coupling ( J ā g ), strong mode coupling J ā« g , and weak mode coupling J āŖ g , also incorporating system decay factors (WGM decay Ī and N-V dephasing Ī³ ) at different interparticle distances. Our study shows that by adjusting the system control parameters, quantum information can be transferred between N-V centers with high efficiency. Additionally, the fidelity of QST reaches approximately 99% in all cases, with an oscillatory pattern, reflecting the intricate interplay between NV-resonator and mode coupling strengths. These findings underscore the importance of interparticle distance and mode coupling in the realization of solid-state qubit-based quantum information processing devices.
Tech Support
Section titled āTech SupportāOriginal Source
Section titled āOriginal SourceāReferences
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