High Photon Number Entangled States and Coherent State Superposition from the Extreme Ultraviolet to the Far Infrared

Philipp Stammer; Javier Rivera-Dean; Theocharis Lamprou; Emilio Pisanty; Marcelo F. Ciappina; Paraskevas Tzallas; Maciej Lewenstein

doi:10.1103/physrevlett.128.123603

High Photon Number Entangled States and Coherent State Superposition from the Extreme Ultraviolet to the Far Infrared

Philipp Stammer^*, Javier Rivera-Dean, Theocharis Lamprou, Emilio Pisanty, Marcelo F. Ciappina, Paraskevas Tzallas, Maciej Lewenstein

^*Corresponding author for this work

Physics

Research output: Contribution to journal › Article › peer-review

24 Scopus citations

Abstract

We present a theoretical demonstration on the generation of entangled coherent states and of coherent state superpositions, with photon numbers and frequencies orders of magnitude higher than those provided by the current technology. This is achieved by utilizing a quantum mechanical multimode description of the single- and two-color intense laser field driven process of high harmonic generation in atoms. It is found that all field modes involved in the high harmonic generation process are entangled, and upon performing a quantum operation, lead to the generation of high photon number optical cat states spanning from the far infrared to the extreme ultraviolet spectral region. This provides direct insights into the quantum mechanical properties of the optical field in the intense laser matter interaction. Finally, these states can be considered as a new resource for fundamental tests of quantum theory, quantum information processing, or sensing with nonclassical states of light.

Original language	English
Journal	Physical Review Letters
DOIs	https://doi.org/10.1103/physrevlett.128.123603
State	E-pub ahead of print - 25 Mar 2022

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title = "High Photon Number Entangled States and Coherent State Superposition from the Extreme Ultraviolet to the Far Infrared",

abstract = "We present a theoretical demonstration on the generation of entangled coherent states and of coherent state superpositions, with photon numbers and frequencies orders of magnitude higher than those provided by the current technology. This is achieved by utilizing a quantum mechanical multimode description of the single- and two-color intense laser field driven process of high harmonic generation in atoms. It is found that all field modes involved in the high harmonic generation process are entangled, and upon performing a quantum operation, lead to the generation of high photon number optical cat states spanning from the far infrared to the extreme ultraviolet spectral region. This provides direct insights into the quantum mechanical properties of the optical field in the intense laser matter interaction. Finally, these states can be considered as a new resource for fundamental tests of quantum theory, quantum information processing, or sensing with nonclassical states of light.",

author = "Philipp Stammer and Javier Rivera-Dean and Theocharis Lamprou and Emilio Pisanty and Ciappina, {Marcelo F.} and Paraskevas Tzallas and Maciej Lewenstein",

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AU - Stammer, Philipp

AU - Rivera-Dean, Javier

AU - Lamprou, Theocharis

AU - Pisanty, Emilio

AU - Ciappina, Marcelo F.

AU - Tzallas, Paraskevas

AU - Lewenstein, Maciej

PY - 2022/3/25

Y1 - 2022/3/25

N2 - We present a theoretical demonstration on the generation of entangled coherent states and of coherent state superpositions, with photon numbers and frequencies orders of magnitude higher than those provided by the current technology. This is achieved by utilizing a quantum mechanical multimode description of the single- and two-color intense laser field driven process of high harmonic generation in atoms. It is found that all field modes involved in the high harmonic generation process are entangled, and upon performing a quantum operation, lead to the generation of high photon number optical cat states spanning from the far infrared to the extreme ultraviolet spectral region. This provides direct insights into the quantum mechanical properties of the optical field in the intense laser matter interaction. Finally, these states can be considered as a new resource for fundamental tests of quantum theory, quantum information processing, or sensing with nonclassical states of light.

AB - We present a theoretical demonstration on the generation of entangled coherent states and of coherent state superpositions, with photon numbers and frequencies orders of magnitude higher than those provided by the current technology. This is achieved by utilizing a quantum mechanical multimode description of the single- and two-color intense laser field driven process of high harmonic generation in atoms. It is found that all field modes involved in the high harmonic generation process are entangled, and upon performing a quantum operation, lead to the generation of high photon number optical cat states spanning from the far infrared to the extreme ultraviolet spectral region. This provides direct insights into the quantum mechanical properties of the optical field in the intense laser matter interaction. Finally, these states can be considered as a new resource for fundamental tests of quantum theory, quantum information processing, or sensing with nonclassical states of light.

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SN - 0031-9007

JO - Physical Review Letters

JF - Physical Review Letters

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High Photon Number Entangled States and Coherent State Superposition from the Extreme Ultraviolet to the Far Infrared

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