no code implementations • 3 Sep 2019 • Debadrita Ghosh, Thomas Jennewein, Urbasi Sinha
Higher dimensional quantum systems are an important avenue for new explorations in quantum computing as well as quantum communications.
Quantum Physics
no code implementations • 22 May 2019 • Ramy Tannous, Zhangdong Ye, Jeongwan Jin, Katanya B. Kuntz, Norbert Lütkenhaus, Thomas Jennewein
We study a novel protocol for reference frame independent (RFI) quantum key distribution (QKD) using six states for Alice and four states for Bob, while previous RFI protocols require a six state analyzer for Bob.
Quantum Physics
no code implementations • 9 Oct 2018 • Brendon L. Higgins, Jean-Philippe Bourgoin, Thomas Jennewein
Due to physical orientations and birefringence effects, practical quantum information protocols utilizing optical polarization need to handle misalignment between preparation and measurement reference frames.
Quantum Physics Applied Physics
no code implementations • 15 Oct 2015 • Evan Meyer-Scott, Daniel McCloskey, Klaudia Gołos, Jeff Z. Salvail, Kent A. G. Fisher, Deny Hamel, Adán Cabello, Kevin J. Resch, Thomas Jennewein
We present an implementation of photonic qubit precertification that performs the delicate task of detecting the presence of a flying photon without destroying its qubit state, allowing loss-sensitive quantum cryptography and tests of nonlocality even over long distance.
Quantum Physics
no code implementations • 6 Jun 2013 • Evan Meyer-Scott, Marek Bula, Karol Bartkiewicz, Antonín Černoch, Jan Soubusta, Thomas Jennewein, Karel Lemr
We propose a linear-optical scheme for an efficient amplification of a photonic qubit based on interaction of the signal mode with a pair of entangled ancillae.
Quantum Physics
no code implementations • 23 Jul 2010 • Urbasi Sinha, Christophe Couteau, Thomas Jennewein, Raymond Laflamme, Gregor Weihs
We performed a three slit experiment with photons and bounded the magnitude of three path interference to less than 10-2 of the expected two-path interference, thus ruling out third and higher order interference and providing a bound on the accuracy of Born's rule.
Quantum Physics Optics
