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arXiv · 1806.01355

Steady-state generation of Wigner negative states in 1D resonance fluorescence

Fernando Quijandría·Ingrid Strandberg·Göran Johansson
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Abstract

In this work we demonstrate numerically that the nonlinearity provided by a continuously driven two-level system (TLS) allows for the generation of Wigner-negative states of the electromagnetic field confined in one spatial dimension. Wigner-negative states, a.k.a. Wigner nonclassical states, are desirable for quantum information protocols beyond the scope of classical computers. Focusing on the steady-state emission from the TLS, we find the largest negativity at the drive strength where the coherent reflection vanishes.

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Fernando Quijandría, Ingrid Strandberg, Göran Johansson. 2018-12-14. Steady-state generation of Wigner negative states in 1D resonance fluorescence. https://doi.org/10.1103/physrevlett.121.263603

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