article published G. Harder author V. Ansari author Tim Bartley author 49683 Benjamin Brecht author 271500000-0003-4140-0556 Christine Silberhorn author 26263 15 department 288 department <jats:p>In the last few decades, there has been much progress on low loss waveguides, very efficient photon-number detectors and nonlinear processes. Engineered sum-frequency conversion is now at a stage where it allows operation on arbitrary temporal broadband modes, thus making the spectral degree of freedom accessible for information coding. Hereby the information is often encoded into the temporal modes of a single photon. Here, we analyse the prospect of using multi-photon states or squeezed states in different temporal modes based on integrated optics devices. We describe an analogy between mode-selective sum-frequency conversion and a network of spatial beam splitters. Furthermore, we analyse the limits on the achievable squeezing in waveguides with current technology and the loss limits in the conversion process.</jats:p> <jats:p>This article is part of the themed issue ‘Quantum technology for the 21st century’.</jats:p> 2017 eng 1364-503X 1471-296210.1098/rsta.2016.0244 3752099 Harder G, Ansari V, Bartley T, Brecht B, Silberhorn C. Harnessing temporal modes for multi-photon quantum information processing based on integrated optics. <i>Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences</i>. 2017;375(2099). doi:<a href="https://doi.org/10.1098/rsta.2016.0244">10.1098/rsta.2016.0244</a> @article{Harder_Ansari_Bartley_Brecht_Silberhorn_2017, title={Harnessing temporal modes for multi-photon quantum information processing based on integrated optics}, volume={375}, DOI={<a href="https://doi.org/10.1098/rsta.2016.0244">10.1098/rsta.2016.0244</a>}, number={209920160244}, journal={Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences}, author={Harder, G. and Ansari, V. and Bartley, Tim and Brecht, Benjamin and Silberhorn, Christine}, year={2017} } Harder, G., et al. “Harnessing Temporal Modes for Multi-Photon Quantum Information Processing Based on Integrated Optics.” <i>Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences</i>, vol. 375, no. 2099, 20160244, 2017, doi:<a href="https://doi.org/10.1098/rsta.2016.0244">10.1098/rsta.2016.0244</a>. G. Harder, V. Ansari, T. Bartley, B. Brecht, C. Silberhorn, Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences 375 (2017). Harder, G., V. Ansari, Tim Bartley, Benjamin Brecht, and Christine Silberhorn. “Harnessing Temporal Modes for Multi-Photon Quantum Information Processing Based on Integrated Optics.” <i>Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences</i> 375, no. 2099 (2017). <a href="https://doi.org/10.1098/rsta.2016.0244">https://doi.org/10.1098/rsta.2016.0244</a>. Harder, G., Ansari, V., Bartley, T., Brecht, B., &#38; Silberhorn, C. (2017). Harnessing temporal modes for multi-photon quantum information processing based on integrated optics. <i>Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences</i>, <i>375</i>(2099), Article 20160244. <a href="https://doi.org/10.1098/rsta.2016.0244">https://doi.org/10.1098/rsta.2016.0244</a> G. Harder, V. Ansari, T. Bartley, B. Brecht, and C. Silberhorn, “Harnessing temporal modes for multi-photon quantum information processing based on integrated optics,” <i>Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences</i>, vol. 375, no. 2099, Art. no. 20160244, 2017, doi: <a href="https://doi.org/10.1098/rsta.2016.0244">10.1098/rsta.2016.0244</a>. 210322021-01-20T08:44:54Z2023-01-27T08:59:17Z