Macrospin Tunneling and Magnetopolaritons with Nanomechanical Interference
arXiv:1011.2242 · doi:10.1103/PhysRevLett.106.147203
Abstract
We theoretically address the quantum dynamics of a nanomechanical resonator coupled to the macrospin of a magnetic nanoparticle by both instanton and perturbative approaches. We demonstrate suppression of the tunneling between opposite magnetizations by nanomechanical interference. By approximating the macrospin as a two-level system, we describe magnetopolaritons and their destruction by interference. The predictions can be verified experimentally by a molecular magnet attached to a nanomechanical bridge.
4.4 pages, 3 figures. Slightly revised presentation, results unchanged
References in corpus (17)
- Preparation and Detection of a Mechanical Resonator Near the Ground State of Motion
- Suppression of tunneling by interference in half-integer--spin particles
- Superconducting Qubit Storage and Entanglement with Nanomechanical Resonators
- Dynamics of a two-level system strongly coupled to a high-frequency quantum oscillator
- Landau Zener method to study quantum phase interference of Fe8 molecular nanomagnets
- Superconducting Qubits Coupled to Nanoelectromechanical Resonators: An Architecture for Solid-State Quantum Information Processing
- Current-driven ferromagnetic resonance, mechanical torques and rotary motion in magnetic nanostructures
- Quantum Coherence in Fe8 Molecular Nanomagnets
- First-principles study of electron transport through the single-molecule magnet Mn12
- Nano-mechanical magnetization reversal
- Dissipation in circuit quantum electrodynamics: lasing and cooling of a low-frequency oscillator
- Probing the quantum coherence of a nanomechanical resonator using a superconducting qubit: I. Echo scheme
- Rotational States of Magnetic Molecules
- Spin tunneling and topological selection rules for integer spins
- Magnetovibrational coupling in small cantilevers
- Magnetic Molecule on a Microcantilever: Quantum Magneto-mechanical Oscillations
- Single magnetic molecule between conducting leads: Effect of mechanical rotations
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- Landau-Zener dynamics of a nanoresonator containing a tunneling spin
- Cooling a magnetic nanoisland by spin-polarized currents
- Damping of a nanocantilever by paramagnetic spins
- Quantum Tunneling of the Magnetic Moment in a Free Particle
- Conservation of Angular Momentum in the Elastic Medium with Spins
- Magnetic-field-mediated coupling and control in hybrid atomic-nanomechanical systems
- Effect of spin-orbit coupling on tunnelling escape of Bose-Einstein condensate
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