Entanglement and Squeezing of the Optical Field Modes in High Harmonic Generation

Philipp Stammer; Javier Rivera-Dean; Andrew S. Maxwell; Theocharis Lamprou; Javier Argüello-Luengo; Paraskevas Tzallas; Marcelo F. Ciappina; Maciej Lewenstein

doi:10.1103/PhysRevLett.132.143603

Entanglement and Squeezing of the Optical Field Modes in High Harmonic Generation

Philipp Stammer, Javier Rivera-Dean, Andrew S. Maxwell, Theocharis Lamprou, Javier Argüello-Luengo, Paraskevas Tzallas, Marcelo F. Ciappina, Maciej Lewenstein

Physics

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

Abstract

Squeezed optical fields are a powerful resource for a variety of investigations in basic research and technology. However, the generation of intense squeezed light is challenging. Here, we show that intense squeezed light can be produced using strongly laser driven atoms and the so far unrelated process of high harmonic generation. We demonstrate that when the intensity of the driving field significantly depletes the ground state of the atoms, leading to dipole moment correlations, the quantum state of the driving field and the generated high harmonics are entangled and squeezed. Furthermore, we analyze how the resulting quadrature squeezing of the fundamental laser mode after the interaction can be controlled. The findings open the way for the generation of high intensity squeezed light states for a wide range of applications.

Original language	English
Article number	143603
Journal	Physical Review Letters
Volume	132
Issue number	14
DOIs	https://doi.org/10.1103/PhysRevLett.132.143603
State	Published - 5 Apr 2024

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10.1103/PhysRevLett.132.143603

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abstract = "Squeezed optical fields are a powerful resource for a variety of investigations in basic research and technology. However, the generation of intense squeezed light is challenging. Here, we show that intense squeezed light can be produced using strongly laser driven atoms and the so far unrelated process of high harmonic generation. We demonstrate that when the intensity of the driving field significantly depletes the ground state of the atoms, leading to dipole moment correlations, the quantum state of the driving field and the generated high harmonics are entangled and squeezed. Furthermore, we analyze how the resulting quadrature squeezing of the fundamental laser mode after the interaction can be controlled. The findings open the way for the generation of high intensity squeezed light states for a wide range of applications.",

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AU - Rivera-Dean, Javier

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AU - Lamprou, Theocharis

AU - Argüello-Luengo, Javier

AU - Tzallas, Paraskevas

AU - Ciappina, Marcelo F.

AU - Lewenstein, Maciej

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AB - Squeezed optical fields are a powerful resource for a variety of investigations in basic research and technology. However, the generation of intense squeezed light is challenging. Here, we show that intense squeezed light can be produced using strongly laser driven atoms and the so far unrelated process of high harmonic generation. We demonstrate that when the intensity of the driving field significantly depletes the ground state of the atoms, leading to dipole moment correlations, the quantum state of the driving field and the generated high harmonics are entangled and squeezed. Furthermore, we analyze how the resulting quadrature squeezing of the fundamental laser mode after the interaction can be controlled. The findings open the way for the generation of high intensity squeezed light states for a wide range of applications.

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Entanglement and Squeezing of the Optical Field Modes in High Harmonic Generation

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