Work distribution in a photonic system
Abstract
We present a proposal of a set-up to measure the work distribution due to an arbitrary unitary process acting on the spatial transverse degrees of freedom of a light beam. Hermite-Gaussian optical modes representing a quantum harmonic oscillator are prepared in a thermal state and sent through an interferometer. We show that the Fourier transform of the work distribution, or the characteristic function, can be obtained by measuring the intensity at the output of the interferometer. The usefulness of the approach is illustrated by calculating the work distribution for a unitary operation that displaces the linear momentum of the oscillator. We discuss the feasibility of the experiment, which can be realized with simple linear optical components.
Cite
@article{arxiv.1604.07237,
title = {Work distribution in a photonic system},
author = {M. A. A. Talarico and P. B. Monteiro and E. C. Mattei and E. I. Duzzioni and P. H. Souto Ribeiro and L. C. Celeri},
journal= {arXiv preprint arXiv:1604.07237},
year = {2016}
}
Comments
12 pages, 10 figures, accepted for publication in Physical Review A