Highly multimode visible squeezed light with programmable spectral correlations through broadband up-conversion
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arXiv
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| Format: | Preprint |
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2024
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| author | Presutti, Federico Wright, Logan G. Ma, Shi-Yuan Wang, Tianyu Malia, Benjamin K. Onodera, Tatsuhiro McMahon, Peter L. |
| author_facet | Presutti, Federico Wright, Logan G. Ma, Shi-Yuan Wang, Tianyu Malia, Benjamin K. Onodera, Tatsuhiro McMahon, Peter L. |
| contents | Multimode squeezed states of light have been proposed as a resource for achieving quantum advantage in computing and sensing. Recent experiments that demonstrate multimode Gaussian states to this end have most commonly opted for spatial or temporal modes, whereas a complete system based on frequency modes has yet to be realized. Instead, we show how to use the frequency modes simultaneously squeezed in a conventional, single-spatial-mode, optical parametric amplifier when pumped by ultrashort pulses. Specifically, we show how adiabatic frequency conversion can be used not only to convert the quantum state from infrared to visible wavelengths, but to concurrently manipulate the joint spectrum. This near unity-efficiency quantum frequency conversion, over a bandwidth >45 THz and, to our knowledge, the broadest to date, allows us to measure the state with an electron-multiplying CCD (EMCCD) camera-based spectrometer, at non-cryogenic temperatures. We demonstrate the squeezing of >400 frequency modes, with a mean of approximately 700 visible photons per shot. Our work shows how many-mode quantum states of light can be generated, manipulated, and measured with efficient use of hardware resources -- in our case, using one pulsed laser, two nonlinear crystals, and one camera. This ability to produce, with modest hardware resources, large multimode squeezed states with partial programmability motivates the use of frequency encoding for photonics-based quantum information processing. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2401_06119 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Highly multimode visible squeezed light with programmable spectral correlations through broadband up-conversion Presutti, Federico Wright, Logan G. Ma, Shi-Yuan Wang, Tianyu Malia, Benjamin K. Onodera, Tatsuhiro McMahon, Peter L. Quantum Physics Optics Multimode squeezed states of light have been proposed as a resource for achieving quantum advantage in computing and sensing. Recent experiments that demonstrate multimode Gaussian states to this end have most commonly opted for spatial or temporal modes, whereas a complete system based on frequency modes has yet to be realized. Instead, we show how to use the frequency modes simultaneously squeezed in a conventional, single-spatial-mode, optical parametric amplifier when pumped by ultrashort pulses. Specifically, we show how adiabatic frequency conversion can be used not only to convert the quantum state from infrared to visible wavelengths, but to concurrently manipulate the joint spectrum. This near unity-efficiency quantum frequency conversion, over a bandwidth >45 THz and, to our knowledge, the broadest to date, allows us to measure the state with an electron-multiplying CCD (EMCCD) camera-based spectrometer, at non-cryogenic temperatures. We demonstrate the squeezing of >400 frequency modes, with a mean of approximately 700 visible photons per shot. Our work shows how many-mode quantum states of light can be generated, manipulated, and measured with efficient use of hardware resources -- in our case, using one pulsed laser, two nonlinear crystals, and one camera. This ability to produce, with modest hardware resources, large multimode squeezed states with partial programmability motivates the use of frequency encoding for photonics-based quantum information processing. |
| title | Highly multimode visible squeezed light with programmable spectral correlations through broadband up-conversion |
| topic | Quantum Physics Optics |
| url | https://arxiv.org/abs/2401.06119 |