Continuous phase-space representations for finite-dimensional quantum states and their tomography
arXiv:1711.07994 · doi:10.1103/PhysRevA.101.022318
Abstract
Continuous phase spaces have become a powerful tool for describing, analyzing, and tomographically reconstructing quantum states in quantum optics and beyond. A plethora of these phase-space techniques are known, however a thorough understanding of their relations was still lacking for finite-dimensional quantum states. We present a unified approach to continuous phase-space representations which highlights their relations and tomography. The infinite-dimensional case from quantum optics is then recovered in the large-spin limit.
15 pages, 9 figures, v4: extended tomography analysis, added references and figures
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