Quantum gears: a simple mechanical system in the quantum regime

  title={Quantum gears: a simple mechanical system in the quantum regime},
  author={Angus Mackinnon},
  • A. Mackinnon
  • Published 30 May 2002
  • Engineering, Physics
  • Nanotechnology
The quantum mechanics of a simple mechanical system is considered. A group of gears can serve as a model for several different systems such as an artificially constructed nanomechanical device or a group of ring molecules. An expression is derived for the quantization of the dynamics of a two-gear system. The general solution for several gears is discussed. 
Quantum gears from planar rotors.
The dynamics of interacting quantum planar rotors as the building blocks of gear trains and nanomachinery operating in the quantum regime are investigated, and the transmission of motion from one externally driven gear to the next as a function of the coupling parameters and gear profile is studied.
Quantum duets working as autonomous thermal motors.
We study the dynamic properties of a thermal autonomous machine made up of two quantum Brownian particles, each of which is in contact with an environment at different temperature and moves on a
Nanoelectromechanical quantum circuits and systems
Since novel quantum mechanical effects, for instance, quantized heat flow, manifestation of charge discreteness, and the quantum electrodynamical Casimir effect become operative in this regime, exciting new paradigms for circuit modeling and design must be invoked in order to fully exploit the potential of this technology in sensing, computation, and signal processing applications.
Mechanical Transmission of Rotational Motion between Molecular-Scale Gears
Manipulating and coupling molecule gears is the first step towards realizing molecular-scale mechanical machines. Here, we theoretically investigate the behavior of such gears using molecular
Mechanical Transmission of Rotation for Molecule Gears and Solid-State Gears
The miniaturization of gears towards the nanoscale is a formidable task posing a variety of challenges to current fabrication technologies. In context, the understanding, via computer simulations, of
Transmitting Stepwise Rotation among Three Molecule-Gear on the Au(111) Surface.
The results reveal that an open radical state at the core of star-shaped pentaphenylcyclopentadiene (PPCP) favors anchoring, which helps to achieve reproducible and stepwise rotations of the single gears and transmit rotations for up to three interlocked units.
Transmitting stepwise rotation between three molecule-gears on the Au(111) surface by STM
The realization of a train of molecule-gears working under the tip of a scanning tunneling microscope (STM) requires a stable anchor of each molecule to the metal surface. Such anchor can be promoted
Influence of functionalized core-shell structure on the thermodynamic and shape memory properties of nanocomposites.
Results show that while guaranteeing the shape memory properties of the composites, the utilization of the core-shell structured hybrid not only improved the heat resistant performance, but also contributed to better mechanical properties.


Nanosystems - molecular machinery, manufacturing, and computation
This book discusses molecular manufacturing systems, nanoscale Structural Components, and Nanomechanical Computational Systems, as well as some of the techniques used in macromolecular engineering and its applications.
Foundations of nanomechanics
Proc. 24th Int. Conf. Physics of Semiconductors
  • Proc. 24th Int. Conf. Physics of Semiconductors
  • 1999
1976Solid State Physics Holt,Rinehart and Winston
  • Cleland A M 2002Foundations of Nanomechanics Springer New York. Cleland A M & Roukes M L 1999in ‘Proc. 24th Int. Conf. Physics of Semiconductors’ World Sci
  • 1999