Quantum Entanglement of a Tunneling Spin with Mechanical Modes of a Torsional Resonator
Open Access
- 8 August 2011
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review X
- Vol. 1 (1), 011005
- https://doi.org/10.1103/physrevx.1.011005
Abstract
We solve the Schrödinger equation for various quantum regimes describing a tunneling macrospin coupled to a torsional oscillator. The energy spectrum and freezing of spin tunneling are studied. Magnetic susceptibility, noise spectrum, and decoherence due to entanglement of spin and mechanical modes are computed. We show that the presence of a tunneling spin can be detected via splitting of the mechanical mode at the resonance. Our results apply to experiments with magnetic molecules coupled to nanoresonators.Keywords
Funding Information
- National Science Foundation
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