Entanglement dynamics of two nitrogen vacancy centers coupled by a nanomechanical resonator
At a Glance
Section titled āAt a Glanceā| Metadata | Details |
|---|---|
| Publication Date | 2017-01-20 |
| Journal | Journal of Physics B Atomic Molecular and Optical Physics |
| Authors | Z. Toklikishvili, L. Chotorlishvili, S. K. Mishra, S. StagraczyÅski, Michael SchĆ¼ler |
| Institutions | Banaras Hindu University, Tbilisi State University |
| Citations | 5 |
Abstract
Section titled āAbstractāIn this paper we study the time evolution of the entanglement between two\nremote NV Centers (nitrogen vacancy in diamond) connected by a dual-mode\nnanomechanical resonator with magnetic tips on both sides. Calculating the\nnegativity as a measure for the entanglement, we find that the entanglement\nbetween two spins oscillates with time and can be manipulated by varying the\nparameters of the system. We observed the phe- nomenon of a sudden death and\nthe periodic revivals of entanglement in time. For the study of quantum deco-\nherence, we implement a Lindblad master equation. In spite of its complexity,\nthe model is analytically solvable under fairly reasonable assumptions, and\nshows that the decoherence influences the entanglement, the sudden death, and\nthe revivals in time.\n