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Open Quantum Systems Decoherence

Sensing Single Photon in a Cat State

arXiv
Authors: Arman, Gargi Tyagi, Prasanta K. Panigrahi

Year

2020

Paper ID

7058

Status

Preprint

Abstract Read

~2 min

Abstract Words

100

Citations

N/A

Abstract

The cat state is shown to `store' a single photon through the superposition of its orthogonal counterpart with itself, and an excited oscillator state. Photon addition leads to a π phase shift at origin in the observed phase space interference of the Wigner function, which also displays negativity, controlled by the average photon number $|α|2$ of coherent states comprising the cat state. The maxima and minima of the sub-Planck tiles in the phase space of the kitten state are interchanged after photon addition, leading to their orthogonality. Interestingly, photon addition to Yurke-Stoler state characterized by Poissonian statistics leads to a sub-Poissonian distribution.

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  • This paper contributes to the Open Quantum Systems & Decoherence research area in the Quantum Articles archive.
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  • The cat state is shown to `store' a single photon through the superposition of its orthogonal counterpart with itself, and an excited oscillator state.

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References & Citation Signals

[1] DOI https://doi.org/arXiv:2011.00990 [2] arXiv https://arxiv.org/abs/2011.00990 [3] Publisher https://arxiv.org/abs/2011.00990

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