Generating quantum superposition states in a levitated nanodiamond

Abstract

We propose a method to generate transiently nonclassical motional states in a levitated optomechanical system. The nonclassicality arises from a nonlinearity induced by coupling the mechanical motion of a nanodiamond carrying a nitrogen-vacancy center with its spin degrees of freedom using a second-order magnetic field gradient (MFG). We employ a Fokker–Planck equation for the Wigner distribution to study the effect of the induced nonlinearity on the dynamics of the system. The time evolution of the Wigner distribution reveals the transient generation of several nonclassical states. The presence of these states is also confirmed by the negativity of the Wigner function. We expect such nonclassical states to have potential applications in quantum information processing and quantum metrology.

Document Details

Document Type
Pub Defense Publication
Publication Date
May 08, 2020
Source ID
10.1364/josab.389154

Entities

People

  • M. Bhattacharya
  • Sandeep Sharma

Organizations

  • Office of Naval Research

Tags

Fields of Study

  • Physics

Readers

  • Adaptive Control and Estimation with Uncertainty in Dynamic Systems.
  • Data Mining and Knowledge Discovery.
  • Quantum spin resonance or Electron Paramagnetic Resonance spectroscopy.

Technology Areas

  • Quantum Computing
  • Quantum Science - Quantum Dots