Spin squeezing of mixed systems
Quantum Physics
2009-11-06 v1
Abstract
The notion of spin squeezing has been discussed in this paper using the density matrix formalism. Extending the definition of squeezing for pure states given by Kitagawa and Ueda in an appropriate manner and employing the spherical tensor representation, we show that mixed spin states which are non-oriented and possess vector polarization indeed exhibit squeezing. We construct a mixed state of a spin 1 system using two spin 1/2 states and study its squeezing behaviour as a function of the individual polarizations of the two spinors.
Cite
@article{arxiv.quant-ph/0010088,
title = {Spin squeezing of mixed systems},
author = {K. S. Mallesh and Swarnamala Sirsi and Mahmoud A. A. Sbaih and P. N. Deepak and G. Ramachandran},
journal= {arXiv preprint arXiv:quant-ph/0010088},
year = {2009}
}
Comments
Uses packages times, latexsym, IOP style files iopart.cls, iopams.sty, 14 pages, 6 figure files