Semiclassical propagation of spin coherent states
arXiv:quant-ph/0505224 · doi:10.1103/PhysRevA.72.042102
Abstract
The semiclassical propagation of spin coherent states is considered in complex phase space. For two time-independent systems we find the appropriate classical trajectories and show that their combined contributions are able to describe quantum interference with great accuracy. Not only the modulus but also the phase of the quantum propagator, both dynamical and geometric terms combined, are accurately reproduced.
7 pages, 6 figures
References in corpus (12)
- Geometric Manipulation of Trapped Ions for Quantum Computation
- Semiclassical Approximations in Phase Space with Coherent States
- Holonomic quantum computation with neutral atoms
- Semiclassical theory of spin-orbit interactions using spin coherent states
- Semiclassical theory of spin-orbit interaction in the extended phase space
- SU(2) instantons with boundary jumps and spin tunneling in magnetic molecules
- Bohr-Sommerfeld quantization of spin Hamiltonians
- Spin Tunneling in Magnetic Molecules: Quasisingular Perturbations and Discontinuous SU(2) Instantons
- A Uniform Approximation for the Coherent State Propagator using a Conjugate Application of the Bargmann Representation
- On the extra phase correction to the semiclassical spin coherent-state propagator
- Semiclassical spin coherent state method in the weak spin-orbit coupling limit
- Semiclassical Husimi functions for spin systems