Few-cycle vacuum squeezing in nanophotonics
Abstract
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.
Additional Information
© 2022 The Authors, some rights reserved; exclusive licensee American Association for the Advancement of Science. No claim to original U.S. Government Works. his is an article distributed under the terms of the Science Journals Default License. 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. 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. Author contributions: R.N. and A.M. conceived of the idea and designed the experiments; R.N. designed the devices with assistance from L.L. and Q.G.; R.S. fabricated the devices and L.L. performed the periodic poling; R.N. carried out the experiments with assistance from R.S., R.M.G., Q.G., and A.R.; R.N. performed the theoretical and numerical analysis with contributions from L.L.; R.N. and A.M. wrote the manuscript with input from all other authors; and A.M. supervised the project. Data and materials availability: All other data needed to evaluate the conclusions in the paper are present in the paper or the supplementary materials. The data files supporting the plots in the main text are available at Figshare (31). Competing interests: R.N., A.M., R.S., and L.L. are inventors on a provisional patent application (63/299,762) by the California Institute of Technology based on the work presented here.Attached Files
Supplemental Material - science.abo6213_sm.pdf
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Additional details
- Eprint ID
- 118232
- Resolver ID
- CaltechAUTHORS:20221205-666301600.4
- NTT Research
- W911NF-18-1-0285
- Army Research Office (ARO)
- ECCS-1846273
- NSF
- CCF-1918549
- NSF
- FA9550-20-1-0040
- Air Force Office of Scientific Research (AFOSR)
- JPL President and Director's Fund
- Created
-
2023-01-06Created from EPrint's datestamp field
- Updated
-
2023-06-15Created from EPrint's last_modified field
- Caltech groups
- Kavli Nanoscience Institute