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Probing multimode squeezing with correlation functions
Open accessAbstract
Broadband multimode squeezers constitute a powerful quantum resource with promising potential for different applications in quantum information technologies such as information coding in quantum communication networks or quantum simulations in higher-dimensional systems. However, the characterization of a large array of squeezers that coexist in a single spatial mode is challenging. In this paper, we address this problem and propose a straightforward method for determining the number of squeezers and their respective squeezing strengths by using broadband multimode correlation function measurements. These measurements employ the large detection windows of the state of the art avalanche photodiodes in order to simultaneously probe the full Hilbert space of the generated state, which enables us to benchmark the squeezed states. Moreover, due to the structure of correlation functions, our measurements are not affected by losses. This is a significant advantage, since detectors with low efficiencies are sufficient. Our approach is less costly than tomographic methods relying on multimode homodyne detection, which is based on much more demanding measurement and analysis tools and appear to be impractical for large Hilbert spaces.
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Quantum computational advantage using photons
Zhong, H.-S., Wang, H., Deng, Y.-H., Chen, M.-C., Peng, L.-C., Luo, Y.-H., Qin, J., Wu, D., Ding, X., Hu, Y., et al. (2020) · Science · doi:10.1126/science.abe8770 · Cited by 2,405
On-chip generation of high-dimensional entangled quantum states and their coherent control
Kues, M., Reimer, C., Roztocki, P., Cortés, L. R., Sciara, S., Wetzel, B., Zhang, Y., Cino, A., Chu, S. T., Little, B. E., et al. (2017) · Nature · doi:10.1038/nature22986 · Cited by 1,177
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Madsen, L. S., Laudenbach, F., Askarani, M. F., Rortais, F., Vincent, T., Bulmer, J. F. F., Miatto, F. M., Neuhaus, L., Helt, L. G., Collins, M. J., et al. (2022) · Nature · doi:10.1038/s41586-022-04725-x · Cited by 1,101
Kues, M., Reimer, C., Lukens, J. M., Munro, W. J., Weiner, A. M., Moss, D. J., & Morandotti, R. (2019) · Nature Photonics · doi:10.1038/s41566-019-0363-0 · Cited by 697
Quantum circuits with many photons on a programmable nanophotonic chip
Arrazola, J. M., Bergholm, V., Brádler, K., Bromley, T. R., Collins, M. J., Dhand, I., Fumagalli, A., Gerrits, T., Goussev, A., Helt, L. G., et al. (2021) · Nature · doi:10.1038/s41586-021-03202-1 · Cited by 567
Metadata
- Authors
- Christ, A., Laiho, K., Eckstein, A., Cassemiro, K. N., & Silberhorn, C.
- Venue
- New Journal of Physics
- Publisher
- IOP Publishing
- Published
- 2011-03-18
- Volume
- 13
- Issue
- 3
- Pages
- 033027
- ISSN
- 1367-2630 (ISSN-L)
- OpenAlex
- W2098792851
- Cited by
- 263
- References
- 40
- FWCI
- 10.05
- Type
- journal article
- Language
- en
- Open access
- gold
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- Christ, A., Laiho, K., Eckstein, A., Cassemiro, K. N., & Silberhorn, C. (2011). Probing multimode squeezing with correlation functions. New Journal of Physics. https://doi.org/10.1088/1367-2630/13/3/033027
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