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arXiv · 1911.00173

Generalized overlap quantum state tomography

Rajveer Nehra·Miller Eaton·Carlos González-Arciniegas·M. S. Kim·Thomas Gerrits·Adriana Lita·Sae Woo Nam·Olivier Pfister
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Abstract

We propose and experimentally demonstrate a quantum state tomography protocol that generalizes the Wallentowitz-Vogel-Banaszek-W\'odkiewicz point-by-point Wigner function reconstruction. The full density operator of an arbitrary quantum state is efficiently reconstructed in the Fock basis, using semidefinite programming, after interference with a small set of calibrated coherent states. This new protocol is resource- and computationally efficient, is robust against noise, does not rely on approximate state displacements, and ensures the physicality of results.

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Rajveer Nehra, Miller Eaton, Carlos González-Arciniegas, M. S. Kim, Thomas Gerrits, Adriana Lita, Sae Woo Nam, Olivier Pfister. 2019-11-01. Generalized overlap quantum state tomography. https://doi.org/10.1103/physrevresearch.2.042002

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