no code implementations • 9 Dec 2020 • Xin-Yi Pan, Christian Kurtsiefer, Alexander Ling, James A. Grieve
The temperature dependence of the refractive indices of potassium titanyl phosphate (KTP) are shown to enable quasi-phasematched type II spontaneous parametric downconversion (SPDC) with low temperature sensitivity.
Quantum Physics Optics
1 code implementation • 1 Dec 2018 • Mathias A. Seidler, Ricardo Gutiérrez-Jáuregui, Alessandro Cerè, Rocío Jáuregui, Christian Kurtsiefer
We present a method to estimate the time scale of quantum jumps from the time correlation of photon pairs generated from a cascade decay in an atomic system, and realize it experimentally in a cold cloud of 87Rb.
Quantum Physics
1 code implementation • 22 Aug 2018 • Jianwei Lee, Lijiong Shen, Alessandro Cerè, Thomas Gerrits, Adriana E. Lita, Sae Woo Nam, Christian Kurtsiefer
Transition-edge sensors (TES) are photon-number resolving calorimetric spectrometers with near unit efficiency.
Instrumentation and Detectors Quantum Physics
1 code implementation • 4 Apr 2017 • Hou Shun Poh, Alessandro Cerè, Jean-Daniel Bancal, Yu Cai, Nicolas Sangouard, Valerio Scarani, Christian Kurtsiefer
Collective measurements on large quantum systems together with a majority voting strategy can lead to a violation of the CHSH Bell inequality.
Quantum Physics
