Cooling Flexural Modes of a Mechanical Oscillator by Magnetic Trapped Bose-Einstein Condensate Atoms
arXiv:1710.09056 · doi:10.1103/PhysRevA.96.063813
Abstract
We theoretically study cooling of flexural modes of a mechanical oscillator by Bose-Einstein Condensate (BEC) atoms (Rb87) trapped in a magnetic trap. The mechanical oscillator with a tiny magnet attached on one of its free ends produces an oscillating magnetic field. When its oscillating frequency matches certain hyperfine Zeeman energy of Rb87 atoms, the trapped BEC atoms are coupled out of the magnetic trap by the mechanical oscillator, flying away from the trap with stolen energy from the mechanical oscillator. Thus the mode temperature of the mechanical oscillator is reduced. The mode temperature of the steady state of a mechanical oscillator, measured by the mean steady-state phonon number in the flexural mode of the mechanical oscillator, is analyzed. It is found that ground state (phonon number less than 1) may be accessible with optimal parameters of the hybrid system of a mechanical oscillator and trapped BEC atoms.
References in corpus (31)
- Cavity Optomechanics
- Quantum Theory of Cavity-Assisted Sideband Cooling of Mechanical Motion
- A Mechanical Mass Sensor with Yoctogram Resolution
- Cooling a nanomechanical resonator with quantum back-action
- A quantum spin transducer based on nano electro-mechancial resonator arrays
- Ultrasensitive force detection with a nanotube mechanical resonator
- Mechanical Resonators for Quantum Optomechanics Experiments at Room Temperature
- Superconducting Qubit Storage and Entanglement with Nanomechanical Resonators
- Deterministic entanglement of photons in two superconducting microwave resonators
- Bose-Einstein condensate coupled to a nanomechanical resonator on an atom chip
- Resonant coupling of a Bose-Einstein condensate to a micromechanical oscillator
- Microwave potentials and optimal control for robust quantum gates on an atom chip
- Entanglement of mechanical oscillators coupled to a non-equilibrium environment
- Cooling of Nanomechanical Resonator Based on Periodical Coupling to Cooper Pair Box
- Controllable Coupling between Flux Qubit and Nanomechanical Resonator by Magnetic Field
- Bose-Einstein Condensates with Cavity-Mediated Spin-Orbit Coupling
- Coupling ultracold atoms to mechanical oscillators
- Output of a pulsed atom laser
- Cooling a Micromechanical Beam by Coupling it to a Transmission Line
- Prospects for cooling nanomechanical motion by coupling to a superconducting microwave resonator
- Ground state cooling of nanomechanical resonator via parametric linear coupling
- Ground-State Cooling of a Mechanical Oscillator by Interference in Andreev Reflection
- Hybrid of superconducting quantum interference device and atomic Bose-Einstein condensate: An architecture for quantum information processing
- Ultrafast quantum random access memory utilizing single Rydberg atoms in a Bose-Einstein condensate
- Harnessing nuclear spin polarization fluctuations in a semiconductor nanowire
- Effects of Spin-Orbit Coupling on Jaynes-Cummings and Tavis-Cummings Models
- Ultra-cold mechanical resonators coupled to atoms in an optical lattice
- Quantum measurement backaction from a BEC coupled to a mechanical oscillator
- Parametric amplification of the mechanical vibrations of a suspended nanowire by magnetic coupling to a Bose-Einstein condensate
- Measurement of statistical nuclear spin polarization in a nanoscale GaAs sample
- Magnetic-field-mediated coupling and control in hybrid atomic-nanomechanical systems