Ground-State Cooling of Levitated Magnets in Low-Frequency Traps
arXiv:2102.03344 · doi:10.1103/PhysRevLett.126.193602
Abstract
We present a ground-state cooling scheme for the mechanical degrees of freedom of mesoscopic magnetic particles levitated in low-frequency traps. Our method makes use of a binary sensor and suitably shaped pulses to perform weak, adaptive measurements on the position of the magnet. This allows us to precisely determine the position and momentum of the particle, transforming the initial high-entropy thermal state into a pure coherent state. The energy is then extracted by shifting the trap center. By delegating the task of energy extraction to a coherent displacement operation we overcome the limitations associated with cooling schemes that rely on the dissipation of a two-level system coupled to the oscillator. We numerically benchmark our protocol in realistic experimental conditions, including heating rates and imperfect readout fidelities, showing that it is well suited for magnetogravitational traps operating at cryogenic temperatures. Our results pave the way for ground-state cooling of micron-scale particles.
arXiv comment6+10 pages, 3+8 figures, matches published version
References in corpus (43)
- Models of Wave-function Collapse, Underlying Theories, and Experimental Tests
- High-fidelity projective readout of a solid-state spin quantum register
- Motional Quantum Ground State of a Levitated Nanoparticle from Room Temperature
- Cavity optomechanics using an optically levitated nanosphere
- Feedback-control of quantum systems using continuous state-estimation
- Large Quantum Superpositions and Interference of Massive Nanometer-Sized Objects
- Testing the limits of quantum mechanical superpositions
- Strong magnetic coupling between an electronic spin qubit and a mechanical resonator
- Detecting high-frequency gravitational waves with optically-levitated sensors
- Optomechanics with Levitated Particles
- Pulsed quantum optomechanics
- Large quantum superpositions of a levitated nanodiamond through spin-optomechanical coupling
- Matter Wave Interferometry of a Levitated Thermal Nano-Oscillator Induced and Probed by a Spin
- Observable quantum entanglement due to gravity
- Motional Sideband Asymmetry of a Nanoparticle Optically Levitated in Free Space
- Search for Screened Interactions Associated with Dark Energy Below the 100 Length Scale
- Searching for new physics using optically levitated sensors
- Large Quantum Delocalization of a Levitated Nanoparticle using Optimal Control: Applications for Force Sensing and Entangling via Weak Forces
- Quantum Magnetomechanics with Levitating Superconducting Microspheres
- A micromechanical proof-of-principle experiment for measuring the gravitational force of milligram masses
- Single-Spin Magnetomechanics with Levitated Micromagnets
- Robust All-Optical Single-Shot Readout of NV Centers in Diamond
- Cooling the Motion of Diamond Nanocrystals in a Magneto-Gravitational Trap in High Vacuum
- Motional Dynamical Decoupling for Matter-Wave Interferometry
- Ultralow mechanical damping with Meissner-levitated ferromagnetic microparticles
- Cooling the Motion of a Silica Microsphere in a Magneto-Gravitational Trap in Ultra-High Vacuum
- Magneto-quantum-nanomechanics: ultra-high Q levitated mechanical oscillators
- Quantum sensing with nanoparticles for gravimetry; when bigger is better
- Cooling of mechanical motion with a two level system: the high temperature regime
- Ground state cooling of a nanomechanical resonator via a Cooper pair box qubit
- Enhanced force sensitivity and entanglement in periodically driven optomechanics
- Bayesian estimation for quantum sensing in the absence of single-shot detection
- Sensing Short-Range Forces with a Nanosphere Matter-Wave Interferometer
- Mechanical dissipation below 1Hz with a cryogenic diamagnetic-levitated micro-oscillator
- Toward Quantum-Limited Position Measurements Using Optically Levitated Microspheres
- Heralded Control of Mechanical motion by Single Spins
- Quantum electromechanics with levitated nanoparticles
- Ground-state cooling of a nanomechanical oscillator with N spins
- Measurement-based cooling of a nonlinear mechanical resonator
- Extending qubit coherence by adaptive quantum environment learning
- Measurement and feedback for cooling heavy levitated particles in low frequency traps
- Laser cooling of high temperature oscillator by multi-level system
- Spin bath narrowing with adaptive parameter estimation
Cited by in corpus (13)
- Enhanced tripartite interactions in spin-magnon-mechanical hybrid systems
- Enhancing Gravitational Interaction between Quantum Systems by a Massive Mediator
- On the Significance of Interferometric Revivals for the Fundamental Description of Gravity
- Feedback Cooling of an Insulating High-Q Diamagnetically Levitated Plate
- Ground-State Cooling of a Mechanical Oscillator via a Hybrid Electro-Optomechanical System
- Enhanced spin-mechanical interaction with levitated micromagnets
- Remote sensing of a levitated superconductor with a flux-tunable microwave cavity
- Optically Hyperpolarized Materials for Levitated Optomechanics
- Exponentially enhanced gravitationally induced entanglement between quantum systems with a two-phonon drive
- Linear cooling of a levitated micromagnetic cylinder by vibration
- Gyroscopically stabilized quantum spin rotors
- Levitated Milligram-scale Ferromagnetic Magnetometer at Room Temperature
- Surface-induced decoherence and heating of charged particles