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120 papers · 1 filter
Directional THz generation in hot Rb vapor excited to a Rydberg state
Mark Lam, Sambit B. Pal, Thibault Vogt +2
We optically excite Rb atoms in a heated vapor cell to a low-lying Rydberg state 10D and observe directional terahertz (THz) beams at 3.3 THz and 7.8 THz. These THz…
Optimal single-shot discrimination of optical modes
Ignatius William Primaatmaja, Asaph Ho, Valerio Scarani
Retrieving classical information encoded in optical modes is at the heart of many quantum information processing tasks, especially in the field of quantum communication and sensing…
Quantum supremacy and quantum phase transitions
Supanut Thanasilp, Jirawat Tangpanitanon, Marc-Antoine Lemonde +2
Demonstrating the ability of existing quantum platforms to perform certain computational tasks intractable to classical computers represents a cornerstone in quantum computing. Des…
Temperature insensitive type II quasi-phasematched spontaneous parametric downconversion
Xin-Yi Pan, Christian Kurtsiefer, Alexander Ling +1
The temperature dependence of the refractive indices of potassium titanyl phosphate (KTP) are shown to enable quasi-phasematched type II spontaneous parametric downconversion (SPDC…
Photonic band structure design using persistent homology
Daniel Leykam, Dimitris G Angelakis
The machine learning technique of persistent homology classifies complex systems or datasets by computing their topological features over a range of characteristic scales. There is…
Improved DIQKD protocols with finite-size analysis
Ernest Y. -Z. Tan, Pavel Sekatski, Jean-Daniel Bancal +4
The security of finite-length keys is essential for the implementation of device-independent quantum key distribution (DIQKD). Presently, there are several finite-size DIQKD securi…