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Few-cycle vacuum squeezing in nanophotonics

Nehra, Rajveer and Sekine, Ryoto and Ledezma, Luis and Guo, Qiushi and Gray, Robert M. and Roy, Arkadev and Marandi, Alireza (2022) Few-cycle vacuum squeezing in nanophotonics. Science, 377 (6612). pp. 1333-1337. ISSN 0036-8075. doi:10.1126/science.abo6213.

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One of the most fundamental quantum states of light is the squeezed vacuum, in which noise in one of the quadratures is less than the standard quantum noise limit. In nanophotonics, it remains challenging to generate, manipulate, and measure such a quantum state with the performance required for a wide range of scalable quantum information systems. Here, we report the development of a lithium niobate–based nanophotonic platform to demonstrate the generation and all-optical measurement of squeezed states on the same chip. The generated squeezed states span more than 25 terahertz of bandwidth supporting just a few optical cycles. The measured 4.9 decibels of squeezing surpass the requirements for a wide range of quantum information systems, demonstrating a practical path toward scalable ultrafast quantum nanophotonics.

Item Type:Article
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URLURL TypeDescription ItemDiscussion Paper InCaltech News
Nehra, Rajveer0000-0002-0165-2188
Sekine, Ryoto0000-0001-6135-8581
Ledezma, Luis0000-0002-0365-1672
Guo, Qiushi0000-0002-6217-102X
Gray, Robert M.0000-0001-5980-8774
Roy, Arkadev0000-0001-5659-8388
Marandi, Alireza0000-0002-0470-0050
Additional Information:The device nanofabrication was performed at the Kavli Nanoscience Institute (KNI) at Caltech. The authors thank NTT Research for financial and technical support. The authors thank C. González-Arciniegas and O. Pfister for fruitful discussions. Funding: The authors gratefully acknowledge support from ARO grant W911NF-18-1-0285, NSF grants 1846273 and 1918549, AFOSR award FA9550-20-1-0040, and NASA/JPL. This project was funded in part by the President’s and Director’s Research and Development Fund of Caltech and JPL.
Group:Kavli Nanoscience Institute
Funding AgencyGrant Number
Army Research Office (ARO)W911NF-18-1-0285
Air Force Office of Scientific Research (AFOSR)FA9550-20-1-0040
JPL President and Director's FundUNSPECIFIED
Issue or Number:6612
Record Number:CaltechAUTHORS:20221205-666301600.4
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Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:118232
Deposited By: Research Services Depository
Deposited On:06 Jan 2023 17:37
Last Modified:28 Feb 2023 21:01

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