Geometrical optimization of spin clusters for the preservation of quantum coherence

Warning The system is temporarily closed to updates for reporting purpose.

Gassab, Lea and Pusuluk, Onur and Müstecaplıoğlu, Özgür Esat (2024) Geometrical optimization of spin clusters for the preservation of quantum coherence. Physical Review A, 109 (1). ISSN 2469-9926 (Print) 2469-9934 (Online)

Full text not available from this repository. (Request a copy)

Abstract

We investigate the influence of geometry on the preservation of quantum coherence in spin clusters subjected to a thermal environment. Assuming weak interspin coupling, we explore the various buffer network configurations that can be embedded in a plane. Our findings reveal that the connectivity of the buffer network is crucial in determining the preservation duration of quantum coherence in an individual central spin. Specifically, we observe that the maximal planar graph yields the longest preservation time for a given number of buffer spins. Interestingly, our results demonstrate that the preservation time does not consistently increase with an increasing number of buffer spins. Employing a quantum master equation in our simulations, we further demonstrate that a tetrahedral geometry comprising a four-spin buffer network provides optimal protection against environmental effects.
Item Type: Article
Divisions: Faculty of Engineering and Natural Sciences
Depositing User: Özgür Esat Müstecaplıoğlu
Date Deposited: 08 Jun 2024 14:13
Last Modified: 08 Jun 2024 14:13
URI: https://research.sabanciuniv.edu/id/eprint/49062

Actions (login required)

View Item
View Item