Optically Hyperpolarized Materials for Levitated Optomechanics
arXiv:2405.13869 · doi:10.22331/q-2025-12-03-1928
Abstract
We explore the potential of levitating solids embedded with non-permanent, optically controllable electron spins, which can be used to hyperpolarize their nuclear spin environment with exceptionally long lifetimes. For example, pentacene-doped naphthalene, which will also serve as our prime example, can achieve bulk polarization exceeding at cryogenic temperatures with polarization lifetimes extending over weeks. These materials make a compelling case for applications such as matter-wave interferometry and novel uses of established NMR techniques. In that spirit, we design a multi-spin Stern-Gerlach-type interferometry protocol which, thanks to the homogeneous spin distribution and the absence of a preferential nuclear-spin quantization axis in such materials, avoids many of the limitations associated with solid state crystals hosting electronic spin defects, such as nanodiamonds containing NV centers. We assess the potential of our interferometer to enhance existing bounds on the free parameters of objective collapse models. Beyond matter-wave interferometry, we analyze the prospects for implementing magic angle spinning at frequencies surpassing the current standard in NMR, capitalizing on the exceptional rotational capabilities offered by levitation. Additionally, we outline a novel protocol for measuring spin ensemble polarization via the position of the nanoparticle and conduct an analysis of dominant noise sources, benchmarking the required isolation levels for various applications.
42 pages, 12 figures
References in corpus (59)
- Cavity Optomechanics
- Models of Wave-function Collapse, Underlying Theories, and Experimental Tests
- Towards quantum superpositions of a mirror
- Motional Quantum Ground State of a Levitated Nanoparticle from Room Temperature
- Cavity optomechanics using an optically levitated nanosphere
- Toward Quantum Superposition of Living Organisms
- Testing the limits of quantum mechanical superpositions
- Levitodynamics: Levitation and control of microscopic objects in vacuum
- Real-time optimal quantum control of mechanical motion at room temperature
- Quantum control of a nanoparticle optically levitated in cryogenic free space
- Optically Levitated Nanodumbbell Torsion Balance and GHz Nanomechanical Rotor
- GHz Rotation of an Optically Trapped Nanoparticle in Vacuum
- Matter-wave interference with particles selected from a molecular library with masses exceeding 10000 amu
- Optomechanics with Levitated Particles
- Quantum Superposition of Massive Objects and Collapse Models
- Ultrasensitive torque detection with an optically levitated nanorotor
- Large quantum superpositions of a levitated nanodiamond through spin-optomechanical coupling
- Near-field interferometry of a free-falling nanoparticle from a point-like source
- Matter Wave Interferometry of a Levitated Thermal Nano-Oscillator Induced and Probed by a Spin
- Cavity cooling of an optically trapped nanoparticle
- Experimental bounds on collapse models from gravitational wave detectors
- Full Rotational Control of Levitated Silicon Nanorods
- Pulsed polarisation for robust DNP
- Optomechanical sensing of spontaneous wave-function collapse
- Free Nano-Object Ramsey Interferometry for Large Quantum Superpositions
- Large Quantum Delocalization of a Levitated Nanoparticle using Optimal Control: Applications for Force Sensing and Entangling via Weak Forces
- Electron spin control of optically levitated nanodiamonds in vacuum
- Spin-Cooling of the Motion of a Trapped Diamond
- Quantum rotations of nanoparticles
- Single-Spin Magnetomechanics with Levitated Micromagnets
- Gravimetry through non-linear optomechanics
- Motional Dynamical Decoupling for Matter-Wave Interferometry
- Narrowing the parameter space of collapse models with ultracold layered force sensors
- Optical Rotation of Levitated Spheres in High Vacuum
- Ultralow mechanical damping with Meissner-levitated ferromagnetic microparticles
- Motion control and optical interrogation of a levitating single NV in vacuum
- LISA pathfinder appreciably constrains collapse models
- Hyperpolarized solution-state NMR spectroscopy with optically polarized crystals
- Testing quantum gravity by nanodiamond interferometry with nitrogen-vacancy centers
- Quantum sensing with nanoparticles for gravimetry; when bigger is better
- Constructing Nano-Object Quantum Superpositions with a Stern-Gerlach Interferometer
- Colored and Dissipative Continuous Spontaneous Localization model and Bounds from Matter-Wave Interferometry
- Dynamics of a Ferromagnetic Particle Levitated Over a Superconductor
- Non-interferometric test of the Continuous Spontaneous Localization model based on rotational optomechanics
- Enhanced force sensitivity and entanglement in periodically driven optomechanics
- Toward Quantum-Limited Position Measurements Using Optically Levitated Microspheres
- Quantum electromechanics with levitated nanoparticles
- Novel CSL bounds from the noise-induced radiation emission from atoms
- Hyperfine-Enhanced Gyromagnetic Ratio of a Nuclear Spin in Diamond
- Spin dynamical decoupling for generating macroscopic superpositions of a free-falling nanodiamond
- Long Spin Coherence and Relaxation Times in Nanodiamonds Milled from Polycrystalline C Diamond
- Theory of nanoparticle cooling by elliptic coherent scattering
- Position measurement of a levitated nanoparticle via interference with its mirror image
- Ground-State Cooling of Levitated Magnets in Low-Frequency Traps
- Linear Stability Analysis of a Levitated Nanomagnet in a Static Magnetic Field: Quantum Spin Stabilized Magnetic Levitation
- Decoherence-Free Rotational Degrees of Freedom for Quantum Applications
- Angle Locking of a Levitating Diamond using Spin-Diamagnetism
- On the origin of force sensitivity in tests of quantum gravity with delocalised mechanical systems
- Robust Macroscopic Matter-Wave Interferometry with Solids