103 citations · 616 across the 20 of their papers we have counts for
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Atmospheric Channel Characteristics for Quantum Communication with Continuous Polarization Variables
Bettina Heim, Dominique Elser, Tim Bartley +5
We investigate the properties of an atmospheric channel for free space quantum communication with continuous polarization variables. In our prepare-and-measure setup, coherent pola…
Enhanced free space beam capture by improved optical tapers
Tim Bartley, Bettina Heim, Dominique Elser +6
In our continuous variable quantum key distribution (QKD) scheme, the homodyne detection set-up requires balancing the intensity of an incident beam between two photodiodes. Realis…
Triplet-like correlation symmetry of continuous variable entangled states
Gerd Leuchs, Ruifang Dong, Denis Sych
We report on a continuous variable analogue of the triplet two-qubit Bell states. We theoretically and experimentally demonstrate a remarkable similarity of two-mode continuous var…
Demonstration of Coherent State Discrimination Using a Displacement Controlled Photon Number Resolving Detector
Christoffer Wittmann, Ulrik L. Andersen, Masahiro Takeoka +2
We experimentally demonstrate a new measurement scheme for the discrimination of two coherent states. The measurement scheme is based on a displacement operation followed by a phot…
Mutually unbiased bases and generalized Bell states
A. B. Klimov, D. Sych, L. L. Sanchez-Soto +1
We employ a straightforward relation between mutually unbiased and Bell bases to extend the latter in terms of a direct construction for the former. We analyze in detail the proper…
Coherent State Quantum Key Distribution with Multi Letter Phase-Shift Keying
Denis Sych, Gerd Leuchs
We present a protocol for quantum key distribution using discrete modulation of coherent states of light. Information is encoded in the variable phase of coherent states which can…